{"title":"SIG 54x Parts Kits","description":null,"products":[{"product_id":"sig-543-folding-stock-carbine-parts-kit-5-56x45mm-with-intact-barrel-matching-serials-lebanese-contract","title":"SIG 543 Folding Stock Carbine Parts Kit 5.56x45mm with Intact Barrel \u0026 Matching Serials - Lebanese Contract","description":"\u003cp\u003e\u003cspan style=\"font-size: 14pt;\"\u003eWe've just received a small batch of \u003cstrong\u003eSIG 543 folding stock carbines\u003c\/strong\u003e in \u003cstrong\u003e5.56x45mm\u003c\/strong\u003e. With an \u003cstrong\u003e11.8\" barrel\u003c\/strong\u003e and \u003cstrong\u003e22.5\" overall length\u003c\/strong\u003e with the stock folded, these are truly a collector's dream kit. The center section of the receiver has been removed per ATF specifications, but the remainder of this kit is \u003cstrong\u003eintact\u003c\/strong\u003e, including the \u003cspan style=\"background-color: #ffff00;\"\u003e\u003cstrong\u003epopulated barrel\u003c\/strong\u003e\u003c\/span\u003e. In the kits we have sorted so far, the \u003cspan style=\"background-color: #ffff00;\"\u003e\u003cstrong\u003ebores are bright and shiny\u003c\/strong\u003e\u003c\/span\u003e.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"font-size: 14pt;\"\u003eUpon inspection, the plastic grips all have a chip or crack, as do the upper and lower handguards. Therefore, we're stating that \u003cspan style=\"background-color: #ffff00;\"\u003e\u003cstrong\u003eall plastic furniture will be chipped or cracked\u003c\/strong\u003e\u003c\/span\u003e (though some may not be). Although chipped or cracked (see images), these are still functional parts and can be scanned and 3D printed. Additionally, some plastic grips have been replaced with \u003cstrong\u003ealuminum grips\u003c\/strong\u003e (see silver grip images).\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"font-size: 14pt;\"\u003eFrom what we've seen, the \u003cspan style=\"background-color: #ffff00;\"\u003e\u003cstrong\u003eserial numbers on the bolt carrier and receiver match\u003c\/strong\u003e\u003c\/span\u003e. On the left side of the receiver, the kits are stamped with the \u003cstrong\u003eLebanese Military crest\u003c\/strong\u003e with \"\u003cstrong\u003eAL\u003c\/strong\u003e\" stamped to the left, indicating \u003cstrong\u003eArmy Lebanon\u003c\/strong\u003e.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"font-size: 14pt;\"\u003eAnother interesting feature is the \u003cstrong\u003eFire Control Selector Mechanism\u003c\/strong\u003e. When rotating the selector, a dial indicates the firing mode: \"\u003cstrong\u003eS\u003c\/strong\u003e\" (safe), \"\u003cstrong\u003e1\u003c\/strong\u003e\" (semi-automatic), \"\u003cstrong\u003e3\u003c\/strong\u003e\" (3-round burst), and \"\u003cstrong\u003e20\u003c\/strong\u003e\" (fully automatic). The SIG 543 is fed from either 20 or 30-round staggered box magazines. After the last round is fired, a hold-open tab in the magazine engages the bolt catch, locking the bolt in its rear position.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"font-size: 14pt;\"\u003e\u003cspan style=\"background-color: #ffff00;\"\u003e\u003cstrong\u003eOne original 30-round magazine is included with each kit.\u003c\/strong\u003e\u003c\/span\u003e These original military-issue staggered box magazines are built from \u003cstrong\u003esteel construction\u003c\/strong\u003e for durability and reliable feeding.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"font-size: 14pt;\"\u003e\u003cstrong\u003eUS Made Receivers\u003c\/strong\u003e – \u003cstrong\u003eTTE Precision Metal Werks\u003c\/strong\u003e will be making Receivers. TTE will start accepting pre-orders when they return from Holiday shutdown on \u003cstrong\u003eJanuary 5th, 2026\u003c\/strong\u003e. Their contact information is \u003cspan style=\"background-color: #ffff00;\"\u003e\u003cstrong\u003e651-395-4354\u003c\/strong\u003e\u003c\/span\u003e or \u003cspan style=\"background-color: #ffff00;\"\u003e\u003cstrong\u003einfo@TTEPMW.com\u003c\/strong\u003e\u003c\/span\u003e.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"font-size: 14pt;\"\u003e\u003cstrong\u003eHistorical Background:\u003c\/strong\u003e The SIG SG 543 is the carbine variant of the SIG SG 540 series, developed by \u003cstrong\u003eSIG (Schweizerische Industrie Gesellschaft)\u003c\/strong\u003e in Switzerland during the late 1960s. Development began after the unsuccessful SG 530-1 design, with SIG opting for a robust \u003cstrong\u003elong-stroke gas piston system with rotating bolt\u003c\/strong\u003e derived from the AK-47 platform. The SG 543 features a shortened \u003cstrong\u003e300mm (11.8\") barrel\u003c\/strong\u003e, compact gas system, folding buttstock, and four-position aperture sights for 100-400 meters. Due to Swiss export restrictions, SIG licensed production to \u003cstrong\u003eManurhin of France\u003c\/strong\u003e. The rifle was adopted by several nations including Lebanon, Portugal, and Chile, where \u003cstrong\u003eFAMAE\u003c\/strong\u003e continues licensed production today. The SG 540 series served as the foundation for the SIG 550, which became the Swiss military's standard service rifle (Stgw 90).\u003c\/span\u003e\u003c\/p\u003e","brand":"Sig Sauer","offers":[{"title":"Default Title","offer_id":52668964995394,"sku":"KIT0401","price":899.99,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0997\/7921\/5682\/files\/IMG_9811__60310.1766513598.1280.1280.jpg?v=1774274654"},{"product_id":"sig-543-folding-stock-carbine-parts-kit-5-56x45mm-with-intact-barrel-handguards-broken-missing-lebanese-contract","title":"SIG 543 Folding Stock Carbine Parts Kit 5.56x45mm with Intact Barrel - Handguards Broken\/Missing - Lebanese Contract","description":"\u003cp\u003e\u003cspan style=\"font-size: 14pt;\"\u003eWe've just received a small batch of \u003cstrong\u003eSIG 543 folding stock carbines\u003c\/strong\u003e in \u003cstrong\u003e5.56x45mm\u003c\/strong\u003e. With an \u003cstrong\u003e11.8\" barrel\u003c\/strong\u003e and \u003cstrong\u003e22.5\" overall length\u003c\/strong\u003e with the stock folded, these are truly a collector's dream kit. The center section of the receiver has been removed per ATF specifications, but the remainder of this kit is \u003cstrong\u003eintact\u003c\/strong\u003e, including the \u003cspan style=\"background-color: #ffff00;\"\u003e\u003cstrong\u003epopulated barrel\u003c\/strong\u003e\u003c\/span\u003e. In the kits we have sorted so far, the \u003cspan style=\"background-color: #ffff00;\"\u003e\u003cstrong\u003ebores are bright and shiny\u003c\/strong\u003e\u003c\/span\u003e.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"font-size: 14pt;\"\u003eUpon inspection, the plastic grips all have a chip or crack. Additionally, some plastic grips have been replaced with \u003cstrong\u003ealuminum grips\u003c\/strong\u003e (see silver grip images).\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"font-size: 14pt;\"\u003e\u003cspan style=\"background-color: #ffff00;\"\u003e\u003cstrong\u003eMost of these kits have destroyed upper and lower handguards.\u003c\/strong\u003e\u003c\/span\u003e We have included what parts\/pieces that we received, but don't count on their functionality. We are working on a solution to offer handguards whether 3D printed, cast or molded, and contacting \u003cstrong\u003eFAMAE\u003c\/strong\u003e for parts. The uniqueness of the lower handguard is that it locks in the pivot pin in place that holds the upper to the lower. \u003cspan style=\"background-color: #ffff00;\"\u003e\u003cstrong\u003eA handful of kits in this category are non-matching numbers or do not have the Lebanon Crest on the lower.\u003c\/strong\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"font-size: 14pt;\"\u003eAnother interesting feature is the \u003cstrong\u003eFire Control Selector Mechanism\u003c\/strong\u003e. When rotating the selector, a dial indicates the firing mode: \"\u003cstrong\u003eS\u003c\/strong\u003e\" (safe), \"\u003cstrong\u003e1\u003c\/strong\u003e\" (semi-automatic), \"\u003cstrong\u003e3\u003c\/strong\u003e\" (3-round burst), and \"\u003cstrong\u003e20\u003c\/strong\u003e\" (fully automatic). The SIG 543 is fed from either 20 or 30-round staggered box magazines. After the last round is fired, a hold-open tab in the magazine engages the bolt catch, locking the bolt in its rear position.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"font-size: 14pt;\"\u003e\u003cspan style=\"background-color: #ffff00;\"\u003e\u003cstrong\u003eOne original 30-round magazine is included with each kit.\u003c\/strong\u003e\u003c\/span\u003e These original military-issue staggered box magazines are built from \u003cstrong\u003esteel construction\u003c\/strong\u003e for durability and reliable feeding.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"font-size: 14pt;\"\u003e\u003cstrong\u003eUS Made Receivers\u003c\/strong\u003e – \u003cstrong\u003eTTE Precision Metal Werks\u003c\/strong\u003e will be making Receivers. TTE will start accepting pre-orders when they return from Holiday shutdown on \u003cstrong\u003eJanuary 5th, 2026\u003c\/strong\u003e. Their contact information is \u003cspan style=\"background-color: #ffff00;\"\u003e\u003cstrong\u003e651-395-4354\u003c\/strong\u003e\u003c\/span\u003e or \u003cspan style=\"background-color: #ffff00;\"\u003e\u003cstrong\u003einfo@TTEPMW.com\u003c\/strong\u003e\u003c\/span\u003e.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"font-size: 14pt;\"\u003e\u003cstrong\u003eHistorical Background:\u003c\/strong\u003e The SIG SG 543 is the carbine variant of the SIG SG 540 series, developed by \u003cstrong\u003eSIG (Schweizerische Industrie Gesellschaft)\u003c\/strong\u003e in Switzerland during the late 1960s. Development began after the unsuccessful SG 530-1 design, with SIG opting for a robust \u003cstrong\u003elong-stroke gas piston system with rotating bolt\u003c\/strong\u003e derived from the AK-47 platform. The SG 543 features a shortened \u003cstrong\u003e300mm (11.8\") barrel\u003c\/strong\u003e, compact gas system, folding buttstock, and four-position aperture sights for 100-400 meters. Due to Swiss export restrictions, SIG licensed production to \u003cstrong\u003eManurhin of France\u003c\/strong\u003e. The rifle was adopted by several nations including Lebanon, Portugal, and Chile, where \u003cstrong\u003eFAMAE\u003c\/strong\u003e continues licensed production today. The SG 540 series served as the foundation for the SIG 550, which became the Swiss military's standard service rifle (Stgw 90).\u003c\/span\u003e\u003c\/p\u003e","brand":"Sig Sauer","offers":[{"title":"Default Title","offer_id":52668966732098,"sku":"KIT0401_B","price":849.99,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0997\/7921\/5682\/files\/IMG_9836__88873.1766522651.1280.1280.jpg?v=1774274656"},{"product_id":"sig-542-308-7-62-nato-parts-kit-with-intact-barrel-lebanese-contract-fixed-stock","title":"SIG 542 ( .308 \/ 7.62 NATO ) Parts Kit with Intact Barrel - Lebanese Contract - Fixed Stock","description":"\u003cp\u003e\u003cspan style=\"font-size: 14pt;\"\u003e\u003cstrong\u003e\u003cspan style=\"background-color: #ffff00;\"\u003eGood Surplus Condition\u003c\/span\u003e\u003c\/strong\u003e • \u003cstrong\u003eIntact Populated Barrel\u003c\/strong\u003e • \u003cstrong\u003eOriginal 20-Round Magazine\u003c\/strong\u003e\u003cbr\u003e\u003cstrong\u003eFixed Stock Configuration\u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"font-size: 14pt;\"\u003eThe \u003cstrong\u003e\u003cspan style=\"background-color: #ffff00;\"\u003eSIG 542\u003c\/span\u003e\u003c\/strong\u003e is the \u003cstrong\u003e7.62×51 NATO (.308)\u003c\/strong\u003e battle rifle variant of SIG's highly regarded \u003cstrong\u003e540-series\u003c\/strong\u003e, a Swiss-designed export rifle family built to true military standards. These \u003cstrong\u003eLebanese military-marked\u003c\/strong\u003e SIG 542 parts kits offer outstanding historical value, real service provenance, and increasingly hard-to-find original components.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"font-size: 14pt;\"\u003eEach kit includes the \u003cstrong\u003eoriginal intact Swiss barrel\u003c\/strong\u003e, still fully populated with all original barrel-mounted components attached, along with a \u003cstrong\u003esaw-cut receiver stub\u003c\/strong\u003e remaining on the barrel to preserve original configuration details. An \u003cstrong\u003eoriginal 20-round magazine\u003c\/strong\u003e is also included. This kit comes with the \u003cstrong\u003efixed stock\u003c\/strong\u003e configuration.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003ch3\u003e\u003cspan style=\"font-size: 14pt;\"\u003e\u003cstrong\u003eCondition\u003c\/strong\u003e\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cspan style=\"font-size: 14pt;\"\u003eAll kits are in \u003cstrong\u003e\u003cspan style=\"background-color: #ffff00;\"\u003eGood surplus condition\u003c\/span\u003e\u003c\/strong\u003e.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"font-size: 14pt;\"\u003eExpect a light protective layer of dust and grime from long-term storage, which wipes off easily. Finish wear, handling marks, and cosmetic variations are normal for military-issued surplus and are consistent with this grading.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003ch3\u003e\u003cspan style=\"font-size: 14pt;\"\u003e\u003cstrong\u003eFurniture \u0026amp; Component Variations\u003c\/strong\u003e\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cspan style=\"font-size: 14pt;\"\u003e\u003cstrong\u003ePistol Grips\u003c\/strong\u003e\u003cbr\u003ePistol grips vary by kit and may be plastic or aluminum:\u003c\/span\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\u003cspan style=\"font-size: 14pt;\"\u003e\u003cstrong\u003ePlastic grips:\u003c\/strong\u003e Expect possible chips, cracks, or edge wear\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan style=\"font-size: 14pt;\"\u003e\u003cstrong\u003eAluminum grips:\u003c\/strong\u003e May show dings, dents, or a hole drilled (common on service or arsenal-modified grips)\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cspan style=\"font-size: 14pt;\"\u003eThese conditions are typical of issued surplus and fall within Good surplus condition.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"font-size: 14pt;\"\u003e\u003cstrong\u003eHandguards\u003c\/strong\u003e\u003cbr\u003eWe are actively sorting handguards to exclude examples with major chips, cracks, or broken sections, and no significant issues have been observed in what is being shipped. Minor hairline cracks may exist, which is normal for surplus handguards and consistent with Good condition grading.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003ch3\u003e\u003cspan style=\"font-size: 14pt;\"\u003e\u003cstrong\u003eKey Features\u003c\/strong\u003e\u003c\/span\u003e\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\u003cspan style=\"font-size: 14pt;\"\u003e\u003cstrong\u003eModel:\u003c\/strong\u003e SIG 542\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan style=\"font-size: 14pt;\"\u003e\u003cstrong\u003eCaliber:\u003c\/strong\u003e 7.62×51 NATO \/ .308 Winchester\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan style=\"font-size: 14pt;\"\u003e\u003cstrong\u003eSeries:\u003c\/strong\u003e SIG 540-series (Swiss export military rifles)\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan style=\"font-size: 14pt;\"\u003e\u003cstrong\u003eBarrel:\u003c\/strong\u003e Original Swiss barrel — Intact and fully populated — All original barrel-mounted components remain attached — Saw-cut receiver stub attached\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan style=\"font-size: 14pt;\"\u003e\u003cstrong\u003eMagazine:\u003c\/strong\u003e Original 20-round magazine included\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan style=\"font-size: 14pt;\"\u003e\u003cstrong\u003eStock:\u003c\/strong\u003e Fixed stock\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan style=\"font-size: 14pt;\"\u003e\u003cstrong\u003eMarkings:\u003c\/strong\u003e Lebanese military stampings (location and style vary)\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003ch3\u003e\u003cspan style=\"font-size: 14pt;\"\u003e\u003cstrong\u003eHistory \u0026amp; Background – SIG 542\u003c\/strong\u003e\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cspan style=\"font-size: 14pt;\"\u003eDeveloped by \u003cstrong\u003eSIG (Schweizerische Industrie Gesellschaft)\u003c\/strong\u003e during the late \u003cstrong\u003e1960s and 1970s\u003c\/strong\u003e, the 540-series rifles were designed specifically for military export. While Switzerland later adopted the SG 550, the 540-series became widely respected for reliability, precision machining, and durability in harsh environments.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"font-size: 14pt;\"\u003eThe \u003cstrong\u003eSIG 542\u003c\/strong\u003e served as the full-power 7.62 NATO battle rifle within the family, favored by forces seeking extended range and proven stopping power. Its rugged design and smooth operation continue to earn it a strong following among collectors and builders today.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003ch3\u003e\u003cspan style=\"font-size: 14pt;\"\u003e\u003cstrong\u003eLebanese Military Markings\u003c\/strong\u003e\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cspan style=\"font-size: 14pt;\"\u003eLebanon was among the nations that acquired SIG 540-series rifles through official military channels during periods of regional conflict. The \u003cstrong\u003eLebanese military stampings\u003c\/strong\u003e present on these kits provide tangible service history and enhance their collectability beyond commercial-only examples.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003ch3\u003e\u003cspan style=\"font-size: 14pt;\"\u003e\u003cstrong\u003eCollector \u0026amp; Builder Notes\u003c\/strong\u003e\u003c\/span\u003e\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\u003cspan style=\"font-size: 14pt;\"\u003eOriginal intact, fully populated barrels are \u003cstrong\u003eincreasingly scarce\u003c\/strong\u003e\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan style=\"font-size: 14pt;\"\u003eReceiver stubs remain attached to preserve original alignment and configuration\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan style=\"font-size: 14pt;\"\u003eFurniture and markings vary from kit to kit\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan style=\"font-size: 14pt;\"\u003eIdeal for historical builds, collectors, and SIG enthusiasts\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"font-size: 14pt;\"\u003e\u003cstrong\u003eUS Made Receivers\u003c\/strong\u003e – \u003cstrong\u003eTTE Precision Metal Werks\u003c\/strong\u003e will be making Receivers. Their contact information is \u003cspan style=\"background-color: #ffff00;\"\u003e\u003cstrong\u003e651-395-4354\u003c\/strong\u003e\u003c\/span\u003e or \u003cspan style=\"background-color: #ffff00;\"\u003e\u003cstrong\u003einfo@TTEPMW.com\u003c\/strong\u003e\u003c\/span\u003e.\u003c\/span\u003e\u003c\/p\u003e","brand":"Sig Sauer","offers":[{"title":"Default Title","offer_id":52668977742146,"sku":"KIT0410","price":999.99,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0997\/7921\/5682\/files\/IMG_0027__39435.1767909357.1280.1280.jpg?v=1774274672"},{"product_id":"sig-542-308-7-62-nato-parts-kit-with-intact-barrel-lebanese-contract-folding-stock","title":"SIG 542 ( .308 \/ 7.62 NATO ) Parts Kit with Intact Barrel - Lebanese Contract - Folding Stock - DROP #2","description":"\u003cp\u003e\u003cspan style=\"font-size: 14pt;\"\u003e\u003cstrong\u003e\u003cspan style=\"background-color: #ffff00;\"\u003eGood Surplus Condition\u003c\/span\u003e\u003c\/strong\u003e • \u003cstrong\u003eIntact Populated Barrel\u003c\/strong\u003e • \u003cstrong\u003eOriginal 20-Round Magazine\u003c\/strong\u003e\u003cbr\u003e\u003cstrong\u003eFolding Stock Configuration\u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"font-size: 14pt;\"\u003eThe \u003cstrong\u003e\u003cspan style=\"background-color: #ffff00;\"\u003eSIG 542\u003c\/span\u003e\u003c\/strong\u003e is the \u003cstrong\u003e7.62×51 NATO (.308)\u003c\/strong\u003e battle rifle variant of SIG's highly regarded \u003cstrong\u003e540-series\u003c\/strong\u003e, a Swiss-designed export rifle family built to true military standards. These \u003cstrong\u003eLebanese military-marked\u003c\/strong\u003e SIG 542 parts kits offer outstanding historical value, real service provenance, and increasingly hard-to-find original components.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"font-size: 14pt;\"\u003eEach kit includes the \u003cstrong\u003eoriginal intact Swiss barrel\u003c\/strong\u003e, still fully populated with all original barrel-mounted components attached, along with a \u003cstrong\u003esaw-cut receiver stub\u003c\/strong\u003e remaining on the barrel to preserve original configuration details. An \u003cstrong\u003eoriginal 20-round magazine\u003c\/strong\u003e is also included. This kit comes with the \u003cstrong\u003efolding stock\u003c\/strong\u003e configuration. \u003cstrong\u003e\u003cspan style=\"background-color: #f1c40f;\"\u003eComes with Bayonet!\u003c\/span\u003e\u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003ch3\u003e\u003cspan style=\"font-size: 14pt;\"\u003e\u003cstrong\u003eCondition\u003c\/strong\u003e\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cspan style=\"font-size: 14pt;\"\u003eAll kits are in \u003cstrong\u003e\u003cspan style=\"background-color: #ffff00;\"\u003eGood surplus condition\u003c\/span\u003e\u003c\/strong\u003e.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"font-size: 14pt;\"\u003eExpect a light protective layer of dust and grime from long-term storage, which wipes off easily. Finish wear, handling marks, and cosmetic variations are normal for military-issued surplus and are consistent with this grading.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003ch3\u003e\u003cspan style=\"font-size: 14pt;\"\u003e\u003cstrong\u003eFurniture \u0026amp; Component Variations\u003c\/strong\u003e\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cspan style=\"font-size: 14pt;\"\u003e\u003cstrong\u003ePistol Grips\u003c\/strong\u003e\u003cbr\u003ePistol grips vary by kit and may be plastic or aluminum:\u003c\/span\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\u003cspan style=\"font-size: 14pt;\"\u003e\u003cstrong\u003ePlastic grips:\u003c\/strong\u003e Expect possible chips, cracks, or edge wear\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan style=\"font-size: 14pt;\"\u003e\u003cstrong\u003eAluminum grips:\u003c\/strong\u003e May show dings, dents, or a hole drilled (common on service or arsenal-modified grips)\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cspan style=\"font-size: 14pt;\"\u003eThese conditions are typical of issued surplus and fall within Good surplus condition.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"font-size: 14pt;\"\u003e\u003cstrong\u003eHandguards\u003c\/strong\u003e\u003cbr\u003eWe are actively sorting handguards to exclude examples with major chips, cracks, or broken sections, and no significant issues have been observed in what is being shipped. Minor hairline cracks may exist, which is normal for surplus handguards and consistent with Good condition grading.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003ch3\u003e\u003cspan style=\"font-size: 14pt;\"\u003e\u003cstrong\u003eKey Features\u003c\/strong\u003e\u003c\/span\u003e\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\u003cspan style=\"font-size: 14pt;\"\u003e\u003cstrong\u003eModel:\u003c\/strong\u003e SIG 542\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan style=\"font-size: 14pt;\"\u003e\u003cstrong\u003eCaliber:\u003c\/strong\u003e 7.62×51 NATO \/ .308 Winchester\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan style=\"font-size: 14pt;\"\u003e\u003cstrong\u003eSeries:\u003c\/strong\u003e SIG 540-series (Swiss export military rifles)\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan style=\"font-size: 14pt;\"\u003e\u003cstrong\u003eBarrel:\u003c\/strong\u003e Original Swiss barrel — Intact and fully populated — All original barrel-mounted components remain attached — Saw-cut receiver stub attached\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan style=\"font-size: 14pt;\"\u003e\u003cstrong\u003eMagazine:\u003c\/strong\u003e Original 20-round magazine included\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan style=\"font-size: 14pt;\"\u003e\u003cstrong\u003eStock:\u003c\/strong\u003e Folding stock\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan style=\"font-size: 14pt;\"\u003e\u003cstrong\u003eMarkings:\u003c\/strong\u003e Lebanese military stampings (location and style vary)\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003ch3\u003e\u003cspan style=\"font-size: 14pt;\"\u003e\u003cstrong\u003eHistory \u0026amp; Background – SIG 542\u003c\/strong\u003e\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cspan style=\"font-size: 14pt;\"\u003eDeveloped by \u003cstrong\u003eSIG (Schweizerische Industrie Gesellschaft)\u003c\/strong\u003e during the late \u003cstrong\u003e1960s and 1970s\u003c\/strong\u003e, the 540-series rifles were designed specifically for military export. While Switzerland later adopted the SG 550, the 540-series became widely respected for reliability, precision machining, and durability in harsh environments.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"font-size: 14pt;\"\u003eThe \u003cstrong\u003eSIG 542\u003c\/strong\u003e served as the full-power 7.62 NATO battle rifle within the family, favored by forces seeking extended range and proven stopping power. Its rugged design and smooth operation continue to earn it a strong following among collectors and builders today.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003ch3\u003e\u003cspan style=\"font-size: 14pt;\"\u003e\u003cstrong\u003eLebanese Military Markings\u003c\/strong\u003e\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cspan style=\"font-size: 14pt;\"\u003eLebanon was among the nations that acquired SIG 540-series rifles through official military channels during periods of regional conflict. The \u003cstrong\u003eLebanese military stampings\u003c\/strong\u003e present on these kits provide tangible service history and enhance their collectability beyond commercial-only examples.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003ch3\u003e\u003cspan style=\"font-size: 14pt;\"\u003e\u003cstrong\u003eCollector \u0026amp; Builder Notes\u003c\/strong\u003e\u003c\/span\u003e\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\u003cspan style=\"font-size: 14pt;\"\u003eOriginal intact, fully populated barrels are \u003cstrong\u003eincreasingly scarce\u003c\/strong\u003e\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan style=\"font-size: 14pt;\"\u003eReceiver stubs remain attached to preserve original alignment and configuration\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan style=\"font-size: 14pt;\"\u003eFurniture and markings vary from kit to kit\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan style=\"font-size: 14pt;\"\u003eIdeal for historical builds, collectors, and SIG enthusiasts\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan style=\"font-size: 14pt;\"\u003eUS Made Receivers – TTE Precision Metal Werks will be making Receivers. Their contact information is \u003cspan style=\"background-color: #ffff00;\"\u003e651-395-4354\u003c\/span\u003e or \u003cspan style=\"background-color: #ffff00;\"\u003einfo@TTEPMW.com\u003c\/span\u003e.\u003c\/span\u003e\u003c\/strong\u003e\u003c\/p\u003e","brand":"Sig Sauer","offers":[{"title":"Default Title","offer_id":52668978594114,"sku":"KIT0411","price":1199.99,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0997\/7921\/5682\/files\/IMG_0047__39154.1774618500.1280.1280_57fbe853-17c5-46d4-9293-c872cdf553d7.jpg?v=1779201486"},{"product_id":"sig-stg-57-parts-kit-complete-now-with-barrels-included","title":"Sig STG 57 Parts Kit Complete  - NOW WITH BARRELS INCLUDED","description":"\u003cp class=\"p1\"\u003e\u003cspan class=\"s1\" style=\"font-size: 14pt;\"\u003eThe \u003cstrong\u003eSTG57 parts kit\u003c\/strong\u003e is a Swiss-made assault rifle that was developed in the late 1950s by the Swiss firearms manufacturer SIG (Schweizerische Industrie Gesellschaft). It was designed to replace the older Swiss service rifle, the K31, and served as the standard issue rifle for the Swiss Armed Forces. The STG57 is chambered for the 7.5x55mm Swiss cartridge and features a gas-operated, rotating bolt mechanism, which enhances its reliability and accuracy. One of its notable characteristics is the use of a modular design, allowing for easy maintenance and customization. The rifle's construction includes a mix of stamped and machined components, contributing to its durability. Although it was eventually succeeded by the SIG SG 550 series in the 1970s, the STG57 remains a respected firearm among collectors and enthusiasts due to its robust engineering and historical significance in Swiss military history.\u003c\/span\u003e\u003cspan style=\"font-size: 14pt;\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp class=\"p1\"\u003e\u003cspan class=\"s1\" style=\"font-size: 14pt;\"\u003eNOTE: Barrel proof marks will vary. (see photo)\u003c\/span\u003e\u003c\/p\u003e\n\u003cp class=\"p1\"\u003e\u003cspan class=\"s1\" style=\"font-size: 14pt;\"\u003e\u003cstrong\u003eChoose from two available Receiver cuts\u003c\/strong\u003e:\u003c\/span\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli class=\"p1\"\u003e\u003cspan class=\"s1\" style=\"font-size: 14pt;\"\u003eTorch Cut\u003c\/span\u003e\u003c\/li\u003e\n\u003cli class=\"p1\"\u003e\u003cspan class=\"s1\" style=\"font-size: 14pt;\"\u003eSaw Cut\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cspan style=\"text-decoration: underline;\"\u003e\u003cspan style=\"font-size: 14pt;\"\u003eSTG57 Parts Kit Complete includes:\u003c\/span\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\u003cspan style=\"font-size: 14pt;\"\u003eRear Butt Stock with Recoil Spring\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan style=\"font-size: 14pt;\"\u003eRear Receiver Trunnion with Sights\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan style=\"font-size: 14pt;\"\u003eCut Receiver Pieces\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan style=\"font-size: 14pt;\"\u003eComplete Bolt and Bolt Carrier\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan style=\"font-size: 14pt;\"\u003eComplete Front Trunnion and Charging Handle\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan style=\"font-size: 14pt;\"\u003eBipod \u0026amp; Sights\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003e\u003cspan style=\"font-size: 14pt; background-color: #00ff00;\"\u003e✓ BARRELS NOW INCLUDED! - Receiver not included\u003c\/span\u003e\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan class=\"s1\" style=\"font-size: 14pt; background-color: #ffff99;\"\u003e\u003cstrong\u003eNote:\u003c\/strong\u003e The kit you receive may or may not include a sling. Please be aware that we have received a limited number of kits that do not come with slings.\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003e\u003cspan style=\"font-size: 14pt;\"\u003e\u003cstrong\u003e\u003cspan style=\"background-color: #ffff00;\"\u003eDISCLAIMER:\u003c\/span\u003e\u003c\/strong\u003e Parts kits are subject to state-specific shipping restrictions and cannot be shipped to California, Connecticut, Hawaii, Illinois, Maryland, Massachusetts, New Jersey, New York, or Washington. Please visit \u003ca href=\"\/shipping-restrictions\/\" target=\"_blank\"\u003eour shipping restrictions page\u003c\/a\u003e to review all applicable restrictions for your state. Subject to change.\u003c\/span\u003e\u003c\/p\u003e","brand":"Swiss","offers":[{"title":"Torch Cut","offer_id":52683700863298,"sku":"KIT0223","price":999.99,"currency_code":"USD","in_stock":false},{"title":"Saw Cut","offer_id":52683700896066,"sku":"KIT0332","price":999.99,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0997\/7921\/5682\/files\/IMG_1177__73346.1764953657.1280.1280_41a79d9b-a4af-469f-baa7-b28640e5b5d4.jpg?v=1779201225"}],"url":"https:\/\/centerfiresystems.com\/collections\/sig-54x-parts-kits.oembed","provider":"Centerfire Systems","version":"1.0","type":"link"}