{"title":"Stern Defense","description":null,"products":[{"product_id":"stern-defense-rab-ad-rapid-attach-buttstock-adapter","title":"Stern Defense RAB-AD Rapid Attach Buttstock Adapter","description":"\u003cp class=\"p1\"\u003e\u003cspan style=\"font-size: 14pt;\"\u003eThe \u003cspan class=\"s1\"\u003e\u003cstrong\u003eStern Defense RAB-AD Rapid-Attach Buttstock Adapter\u003c\/strong\u003e\u003c\/span\u003e (MFR # 008SDRABADD1M, UPC 850001176774) lets you pop an AR-15 stock off—and back on—in \u003cspan class=\"s1\"\u003e\u003cstrong\u003eone quick 30° twist\u003c\/strong\u003e\u003c\/span\u003e while adding only \u003cspan class=\"s1\"\u003e\u003cstrong\u003e3.5 oz\u003c\/strong\u003e\u003c\/span\u003e and \u003cspan class=\"s1\"\u003e\u003cstrong\u003e≈1.25”\u003c\/strong\u003e\u003c\/span\u003e to length-of-pull. \u003cspan class=\"s2\"\u003e\u003c\/span\u003e Machined from \u003cspan class=\"s1\"\u003e\u003cstrong\u003e7075-T6 aluminum with hardened-steel internals and a Type III hard-coat anodized finish\u003c\/strong\u003e\u003c\/span\u003e, it locks automatically when you twist clockwise and releases when you push the button and rotate counter-clockwise. \u003cspan class=\"s2\"\u003e\u003c\/span\u003e \u003cspan class=\"s2\"\u003e\u003c\/span\u003e Compatible with \u003cspan class=\"s1\"\u003e\u003cstrong\u003estandard-length MIL-SPEC AR-15 buffer tubes\u003c\/strong\u003e\u003c\/span\u003e—whether \u003cspan class=\"s1\"\u003e\u003cstrong\u003edirect-impingement, gas-piston, direct-blowback, or radial-delayed\u003c\/strong\u003e\u003c\/span\u003e systems—this adapter makes storage or discreet transport far easier than a folding stock while keeping your existing recoil system intact. \u003cspan class=\"s2\"\u003e\u003c\/span\u003e \u003cspan class=\"s2\"\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003ch2\u003e\u003cspan style=\"font-size: 14pt;\"\u003e\u003cstrong\u003eHow It Works\u003c\/strong\u003e\u003c\/span\u003e\u003c\/h2\u003e\n\u003col start=\"1\"\u003e\n\u003cli\u003e\n\u003cp class=\"p1\"\u003e\u003cspan style=\"font-size: 14pt;\"\u003e\u003cspan class=\"s1\"\u003e\u003cstrong\u003eDetach:\u003c\/strong\u003e\u003c\/span\u003e Push the side button, twist \u003cspan class=\"s1\"\u003e\u003cstrong\u003ecounter-clockwise 30 degrees\u003c\/strong\u003e\u003c\/span\u003e, and pull the stock straight off. \u003cspan class=\"s2\"\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp class=\"p1\"\u003e\u003cspan style=\"font-size: 14pt;\"\u003e\u003cspan class=\"s1\"\u003e\u003cstrong\u003eRe-attach:\u003c\/strong\u003e\u003c\/span\u003e Align the male\/female halves, push together, and twist \u003cspan class=\"s1\"\u003e\u003cstrong\u003eclockwise 30 degrees\u003c\/strong\u003e\u003c\/span\u003e; the steel lock cams into place automatically. \u003c\/span\u003e\u003cspan class=\"s2\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ol\u003e","brand":"Stern Defense","offers":[{"title":"Default Title","offer_id":52668714713410,"sku":"ACC1601","price":129.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0997\/7921\/5682\/files\/IMG_7756__73219.1761669004.1280.1280.jpg?v=1774274388"},{"product_id":"stern-defense-mag-ad9-ar-15-magazine-adapter-9mm-40-s-w-glock-mag-compatible","title":"Stern Defense MAG-AD9 AR-15 Magazine Adapter – 9mm \/ .40 S\u0026W, Glock Mag Compatible","description":"\u003cp class=\"p1\"\u003e\u003cspan style=\"font-size: 14pt;\"\u003eThe \u003cspan class=\"s1\"\u003e\u003cstrong\u003eMAG-AD9 (Mfr # 001SDMAGAD9GLOCK9AND40)\u003c\/strong\u003e\u003c\/span\u003e slides into a standard AR-15 magazine well and locks via the rifle’s existing mag-catch; installation takes seconds and requires no tools. \u003cspan class=\"s2\"\u003e\u003c\/span\u003e Its \u003cspan class=\"s1\"\u003e\u003cstrong\u003ehard-coat Type III anodized finish\u003c\/strong\u003e\u003c\/span\u003e resists wear, while a \u003cspan class=\"s1\"\u003e\u003cstrong\u003e4140 NiB-coated feed ramp\u003c\/strong\u003e\u003c\/span\u003e ensures reliable feeding. \u003cspan class=\"s2\"\u003e\u003c\/span\u003e \u003cspan class=\"s2\"\u003e\u003c\/span\u003e Compatible with \u003cspan class=\"s1\"\u003e\u003cstrong\u003eall generations of Glock 17\/19\/22\/23\/34\/35 magazines\u003c\/strong\u003e\u003c\/span\u003e and most pistol-caliber bolts, the adapter preserves your original fire-control group, buffer, and stock. \u003cspan class=\"s2\"\u003e\u003c\/span\u003e \u003cspan class=\"s2\"\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003e\u003cspan style=\"font-size: 14pt;\"\u003e\u003cstrong\u003eWhy It Stands Out\u003c\/strong\u003e\u003c\/span\u003e\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cp class=\"p1\"\u003e\u003cspan style=\"font-size: 14pt;\"\u003e\u003cspan class=\"s1\"\u003e\u003cstrong\u003eLRBHO mechanism\u003c\/strong\u003e\u003c\/span\u003e gives true last-shot lock-back—rare on PPE-style magwell adapters. \u003cspan class=\"s2\"\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp class=\"p1\"\u003e\u003cspan style=\"font-size: 14pt;\"\u003e\u003cstrong\u003eAircraft-grade 6061-T6 aluminum body \u0026amp; 4140 steel internals\u003c\/strong\u003e\u003cspan class=\"s1\"\u003e keep weight to ~5.5 oz while maintaining strength. \u003c\/span\u003e\u003cspan class=\"s2\"\u003e\u003c\/span\u003e\u003cspan class=\"s1\"\u003e \u003c\/span\u003e\u003cspan class=\"s2\"\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp class=\"p1\"\u003e\u003cspan style=\"font-size: 14pt;\"\u003e\u003cspan class=\"s1\"\u003e\u003cstrong\u003eErgonomic ambi mag-release\u003c\/strong\u003e\u003c\/span\u003e mirrors the feel of a Glock pistol for intuitive reloads.\u003c\/span\u003e \u003cspan class=\"s2\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Stern Defense","offers":[{"title":"Default Title","offer_id":52668716089666,"sku":"ACC1602","price":169.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0997\/7921\/5682\/files\/IMG_7762__43302.1761668463.1280.1280.jpg?v=1774274389"},{"product_id":"stern-defense-sd-hg15-mod4-m-15-m-lok-handguard-black","title":"Stern Defense SD HG15 Mod4-M 15\" M-LOK Handguard - Black","description":"\u003cp\u003e\u003cspan style=\"font-size: 14pt;\"\u003eThe \u003cspan style=\"background-color: #ffff00;\"\u003e\u003cstrong\u003eStern Defense SD HG15 Mod4-M\u003c\/strong\u003e\u003c\/span\u003e is a \u003cstrong\u003e15-inch M-LOK handguard\u003c\/strong\u003e for the \u003cstrong\u003eAR-15 platform\u003c\/strong\u003e.\u003c\/span\u003e\u003c\/p\u003e\u003cp\u003e\u003cspan style=\"font-size: 14pt;\"\u003eIt is made from \u003cstrong\u003eaircraft-grade aluminum\u003c\/strong\u003e and wears a \u003cstrong\u003eblack anodized finish\u003c\/strong\u003e.\u003c\/span\u003e\u003c\/p\u003e","brand":"Stern Defense","offers":[{"title":"Default Title","offer_id":54988434866498,"sku":"174727","price":119.99,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0997\/7921\/5682\/files\/hires_6a69326c-28e0-43a5-bb0b-53473dd694c9.png?v=1784135499"},{"product_id":"stern-defense-sd15-mod5-m-lok-45-acp-16-1-upper","title":"Stern Defense SD15 Mod5 M-LOK 45 ACP 16.1\" Upper","description":"\u003cp\u003e\u003cspan style=\"font-size: 14pt;\"\u003eThe \u003cstrong\u003e\u003cspan style=\"background-color: #ffff00;\"\u003eStern Defense SD15 Mod5 M-LOK upper\u003c\/span\u003e\u003c\/strong\u003e is configured for \u003cstrong\u003e\u003cspan style=\"background-color: #ffff00;\"\u003e45 ACP\u003c\/span\u003e\u003c\/strong\u003e and uses a \u003cstrong\u003e16.1 in\u003c\/strong\u003e barrel.\u003c\/span\u003e\u003c\/p\u003e\u003cp\u003e\u003cspan style=\"font-size: 14pt;\"\u003eIts barrel is made from \u003cstrong\u003e4150 Chrome Moly steel\u003c\/strong\u003e with a \u003cstrong\u003e1:16\u003c\/strong\u003e twist and a \u003cstrong\u003eBlack Melonite\u003c\/strong\u003e finish. The \u003cstrong\u003e7075-T6 aluminum receiver\u003c\/strong\u003e has an \u003cstrong\u003eanodized\u003c\/strong\u003e finish.\u003c\/span\u003e\u003c\/p\u003e\u003cp\u003e\u003cspan style=\"font-size: 14pt;\"\u003eThis upper is offered in \u003cspan style=\"background-color: #ffff00;\"\u003e\u003cstrong\u003eNew Condition\u003c\/strong\u003e\u003c\/span\u003e.\u003c\/span\u003e\u003c\/p\u003e","brand":"Stern Defense","offers":[{"title":"Default Title","offer_id":54988962365762,"sku":"174715","price":624.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0997\/7921\/5682\/files\/hires_404c70d3-60f4-499e-9b7d-20d012162418.png?v=1784146809"},{"product_id":"stern-defense-rapid-attach-mini-buttstock-adapter-black-aluminum-steel","title":"Stern Defense Rapid Attach Mini Buttstock Adapter - Black Aluminum\/Steel","description":"\u003cp\u003e\u003cspan style=\"font-size: 14pt;\"\u003eThe \u003cstrong\u003e\u003cspan style=\"background-color: #ffff00;\"\u003eStern Defense Rapid Attach Mini Buttstock Adapter\u003c\/span\u003e\u003c\/strong\u003e lets you mount and release your \u003cstrong\u003eAR-15\u003c\/strong\u003e buttstock or pistol brace in seconds without tools. Built around a \u003cstrong\u003esteel locking mechanism\u003c\/strong\u003e housed in a body of \u003cstrong\u003e7075 aluminum\u003c\/strong\u003e with steel internals, this compact adapter is \u003cstrong\u003eanodized black\u003c\/strong\u003e for a durable, low-glare finish that matches most rifle builds.\u003c\/span\u003e\u003c\/p\u003e\n\n\u003cp\u003e\u003cspan style=\"font-size: 14pt;\"\u003eThe Mini trims the bulk of a standard adapter so it adds only about \u003cstrong\u003e1.25 inches\u003c\/strong\u003e to your length of pull and roughly \u003cstrong\u003e3.5 ounces\u003c\/strong\u003e of carry weight, keeping your firearm compact for transport and storage. The tool-free design automatically locks and releases the stock or brace in seconds for fast transitions, ideal for shooters who want quick detachment of a buttstock or pistol stabilizing brace without giving up a secure, repeatable lock-up.\u003c\/span\u003e\u003c\/p\u003e","brand":"Stern Defense","offers":[{"title":"Default Title","offer_id":55045014552898,"sku":"174705","price":139.99,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0997\/7921\/5682\/files\/hires_7c266121-0430-4ff9-b484-3e698fb78644.png?v=1784696118"},{"product_id":"stern-defense-45-acp-10-5-4150-chrome-moly-black-melonite-stripped-barrel","title":"Stern Defense 45 ACP 10.5\" 4150 Chrome Moly Black Melonite Stripped Barrel","description":"\u003cp\u003e\u003cspan style=\"font-size: 14pt;\"\u003eThe \u003cstrong\u003e\u003cspan style=\"background-color: #ffff00;\"\u003eStern Defense 45 ACP 10.5\" Stripped Barrel\u003c\/span\u003e\u003c\/strong\u003e is a precision-machined replacement barrel built for \u003cstrong\u003e.45 ACP\u003c\/strong\u003e AR-platform pistol-caliber builds. Cut from \u003cstrong\u003e4150 chrome moly steel\u003c\/strong\u003e and finished in \u003cstrong\u003eblack Melonite\u003c\/strong\u003e (nitride), this \u003cstrong\u003e10.5\"\u003c\/strong\u003e barrel delivers the surface hardness and corrosion resistance needed for hard-use configurations.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"font-size: 14pt;\"\u003eA \u003cstrong\u003e1:16\" rate of twist\u003c\/strong\u003e is optimized for stabilizing \u003cstrong\u003e.45 ACP\u003c\/strong\u003e projectile weights, and the muzzle is threaded \u003cstrong\u003e.578x28\u003c\/strong\u003e for compatibility with common .45 ACP muzzle devices and compensators. Proudly \u003cstrong\u003emade in the USA\u003c\/strong\u003e to Stern Defense's quality standards.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"font-size: 14pt;\"\u003eWhether you are building a compact pistol-caliber carbine, refreshing a worn barrel, or assembling a dedicated \u003cstrong\u003e.45 ACP\u003c\/strong\u003e upper, this stripped \u003cstrong\u003eStern Defense\u003c\/strong\u003e barrel is a straightforward, purpose-built component for your next build.\u003c\/span\u003e\u003c\/p\u003e","brand":"Stern Defense","offers":[{"title":"Default Title","offer_id":55045132845378,"sku":"174725","price":151.99,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0997\/7921\/5682\/files\/hires_414eb829-fc96-4b9f-9e51-630740d0a6cc.png?v=1784696244"},{"product_id":"stern-defense-45-acp-16-10-1-16-black-melonite-barrel-4150-chrome-moly-steel","title":"Stern Defense 45 ACP 16.10\" 1:16\" Black Melonite Barrel - 4150 Chrome Moly Steel","description":"\u003cp\u003e\u003cspan style=\"font-size: 14pt;\"\u003eThe \u003cstrong\u003e\u003cspan style=\"background-color: #ffff00;\"\u003eStern Defense .45 ACP Barrel\u003c\/span\u003e\u003c\/strong\u003e is a drop-in replacement barrel purpose-built for dedicated \u003cstrong\u003e\u003cspan style=\"background-color: #ffff00;\"\u003e45 ACP\u003c\/span\u003e\u003c\/strong\u003e pistol-caliber carbine and AR-style platforms. At \u003cstrong\u003e16.10 inches\u003c\/strong\u003e, it gives builders the length needed for a standard carbine-class build while still fitting a wide range of AR handguards and uppers.\u003c\/span\u003e\u003c\/p\u003e\u003cp\u003e\u003cspan style=\"font-size: 14pt;\"\u003eThe barrel is machined from \u003cstrong\u003e4150 Chrome Moly Steel\u003c\/strong\u003e and treated with a \u003cstrong\u003eBlack Melonite\u003c\/strong\u003e finish for corrosion resistance and long service life under hard use. A \u003cstrong\u003e1:16 inch\u003c\/strong\u003e rate of twist is well-matched to common \u003cstrong\u003e45 ACP\u003c\/strong\u003e projectile weights, and the muzzle is cut with a \u003cstrong\u003e.578x28\u003c\/strong\u003e thread pattern for use with 45 ACP-spec muzzle devices and adapters.\u003c\/span\u003e\u003c\/p\u003e\u003cp\u003e\u003cspan style=\"font-size: 14pt;\"\u003eDesigned as a drop-in option for shooters assembling a dedicated \u003cstrong\u003e45 ACP AR-15\u003c\/strong\u003e upper, this Stern Defense barrel ships without iron sights, leaving the top of the rail free for optics, red dots, or back-up iron sights of the builder's choice. It is well-suited for use with standard AR-15 components for a complete dedicated pistol-caliber carbine build.\u003c\/span\u003e\u003c\/p\u003e","brand":"Stern Defense","offers":[{"title":"Default Title","offer_id":55045188452674,"sku":"174726","price":161.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0997\/7921\/5682\/files\/hires_14b980fd-bc75-4e0d-b8a6-84ab75924a3a.png?v=1784696314"},{"product_id":"stern-defense-mag-ad9-9mm-40-s-w-ar-15-magazine-adapter-sig-p320-p250-s-w-m-p-compatible","title":"Stern Defense Mag-AD9 9mm\/40 S\u0026W AR-15 Magazine Adapter - Sig P320\/P250 \u0026 S\u0026W M\u0026P Compatible","description":"\u003cp\u003e\u003cspan style=\"font-size: 14pt;\"\u003eThe \u003cstrong\u003e\u003cspan style=\"background-color: #ffff00;\"\u003eStern Defense Mag-AD9\u003c\/span\u003e\u003c\/strong\u003e is a drop-in \u003cstrong\u003eAR-15 magazine well adapter\u003c\/strong\u003e that converts any standard mil-spec \u003cstrong\u003eAR-15, M4, or M16 lower\u003c\/strong\u003e to accept \u003cstrong\u003e\u003cspan style=\"background-color: #ffff00;\"\u003e9mm\u003c\/span\u003e\u003c\/strong\u003e and \u003cstrong\u003e\u003cspan style=\"background-color: #ffff00;\"\u003e40 S\u0026amp;W\u003c\/span\u003e\u003c\/strong\u003e pistol-caliber magazines. This is the \u003cstrong\u003eM\u0026amp;P \/ P320 variant\u003c\/strong\u003e, engineered to feed from Smith \u0026amp; Wesson M\u0026amp;P 9mm\/40 magazines as well as Sig Sauer P320 and P250 pistol magazines.\u003c\/span\u003e\u003c\/p\u003e\n\n\u003cp\u003e\u003cspan style=\"font-size: 14pt;\"\u003eThe adapter is \u003cstrong\u003eCNC machined from aircraft grade aluminum\u003c\/strong\u003e and finished in a rugged \u003cstrong\u003eType 3 hard anodized black\u003c\/strong\u003e coating. It installs in seconds with no permanent modifications to the host lower. For proper function, the host firearm requires a 9mm or 40 S\u0026amp;W barrel matched to the chambering of the magazines being used. The Mag-AD9 works with all generations of M\u0026amp;P magazines and accepts the full line of Sig P320 and P250 magazines.\u003c\/span\u003e\u003c\/p\u003e\n\n\u003cp\u003e\u003cspan style=\"font-size: 14pt;\"\u003eA practical choice for a dedicated \u003cstrong\u003epistol-caliber carbine\u003c\/strong\u003e build, a law enforcement training rifle, or any shooter who wants to share standard pistol magazines between a handgun and an AR-platform pistol-caliber carbine.\u003c\/span\u003e\u003c\/p\u003e","brand":"Stern Defense","offers":[{"title":"Default Title","offer_id":55045195039042,"sku":"174707","price":186.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0997\/7921\/5682\/files\/hires_ffeca60a-9295-46c5-9486-669df3becbd7.png?v=1784696321"},{"product_id":"stern-defense-010-ar-15-stripped-upper-receiver-7075-t6-aluminum-anodized","title":"Stern Defense 010 AR-15 Stripped Upper Receiver - 7075-T6 Aluminum Anodized","description":"\u003cp\u003e\u003cspan style=\"font-size: 14pt;\"\u003eThe \u003cstrong\u003e\u003cspan style=\"background-color: #ffff00;\"\u003eStern Defense 010 Stripped Upper Receiver\u003c\/span\u003e\u003c\/strong\u003e is a precision-machined \u003cstrong\u003eAR-15\u003c\/strong\u003e platform component built from \u003cstrong\u003e7075-T6 aluminum\u003c\/strong\u003e and finished in a durable \u003cstrong\u003eanodized\u003c\/strong\u003e coating. Designed as a direct-fit replacement or custom-build foundation, this stripped upper ships ready for the installation of your preferred barrel, handguard, bolt carrier group, and charging handle.\u003c\/span\u003e\u003c\/p\u003e\u003cp\u003e\u003cspan style=\"font-size: 14pt;\"\u003eMachined from solid \u003cstrong\u003e7075-T6 aluminum\u003c\/strong\u003e, the receiver delivers the strength and rigidity the \u003cstrong\u003eAR-15\u003c\/strong\u003e platform demands while keeping weight to a minimum. The \u003cstrong\u003eanodized\u003c\/strong\u003e finish provides reliable corrosion and wear resistance for long service life whether you are assembling a competition upper, a duty-grade build, or simply replacing a worn component. As a stripped receiver, it includes no barrel, handguard, BCG, or muzzle device, giving the builder full freedom to configure the upper to match a specific caliber, barrel length, and accessory setup.\u003c\/span\u003e\u003c\/p\u003e\u003cp\u003e\u003cspan style=\"font-size: 14pt;\"\u003eThe \u003cstrong\u003eStern Defense 010\u003c\/strong\u003e is engineered for \u003cstrong\u003eAR-15\u003c\/strong\u003e builders who want a dependable starting point for a custom upper assembly. 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The upper receiver is machined from \u003cstrong\u003e6061 aircraft-grade aluminum\u003c\/strong\u003e and finished in \u003cstrong\u003ehard-coat anodized\u003c\/strong\u003e black for lasting durability and corrosion resistance.\u003c\/span\u003e\u003c\/p\u003e\n\n\u003cp\u003e\u003cspan style=\"font-size: 14pt;\"\u003eThis upper ships fully assembled from the factory with a standard \u003cstrong\u003edust cover\u003c\/strong\u003e and \u003cstrong\u003eforward assist\u003c\/strong\u003e, a \u003cstrong\u003e15\" MOD4 M-LOK\u003c\/strong\u003e handguard secured by a clamp-on mounting system, and a \u003cstrong\u003eGlock-pattern magazine cut\u003c\/strong\u003e on the upper. The included \u003cstrong\u003eGlock-cut bolt\u003c\/strong\u003e is purpose-built for reliable feeding with 9mm pistol-caliber magazines.\u003c\/span\u003e\u003c\/p\u003e\n\n\u003cp\u003e\u003cspan style=\"font-size: 14pt;\"\u003eDesigned and assembled in the \u003cstrong\u003eUSA\u003c\/strong\u003e, the SD15 Mod4 drops onto any mil-spec AR-15 lower receiver, giving shooters a turnkey pistol-caliber carbine (PCC) build chambered in \u003cstrong\u003e9mm Luger\u003c\/strong\u003e with a modern M-LOK interface for accessories.\u003c\/span\u003e\u003c\/p\u003e","brand":"Stern Defense","offers":[{"title":"Default Title","offer_id":55337733783874,"sku":"S01553","price":535.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0997\/7921\/5682\/files\/alt_d872c466-43c2-422f-9da4-4fbd7d49fe35.jpg?v=1785174113"},{"product_id":"stern-defense-9mm-luger-4-barrel-m-lok-mod-4-pistol-upper","title":"Stern Defense 9mm Luger 4\" Barrel M-LOK Mod 4 Pistol Upper","description":"\u003cp\u003e\u003cspan style=\"font-size: 14pt;\"\u003eThe \u003cstrong\u003e\u003cspan style=\"background-color: #ffff00;\"\u003eStern Defense 9mm Pistol Upper\u003c\/span\u003e\u003c\/strong\u003e is a complete upper receiver assembly built for compact AR-15 pistol platforms chambered in \u003cstrong\u003e9mm Luger\u003c\/strong\u003e. The assembly pairs a short \u003cstrong\u003e4\" steel barrel\u003c\/strong\u003e finished in \u003cstrong\u003eMelonite\u003c\/strong\u003e with a slim, matching \u003cstrong\u003e4\" Mod 4 M-LOK\u003c\/strong\u003e handguard, delivering a lightweight and maneuverable package for pistol-caliber AR builds.\u003c\/span\u003e\u003c\/p\u003e\n\n\u003cp\u003e\u003cspan style=\"font-size: 14pt;\"\u003eThe Mod 4 M-LOK handguard provides a clean, uncluttered look while accepting any M-LOK-compatible accessory - lights, lasers, vertical grips, or rail sections. The Melonite-treated steel barrel offers excellent wear and corrosion resistance for high-round-count 9mm use. As a complete upper, this assembly ships \u003cstrong\u003ewith the bolt included\u003c\/strong\u003e and is \u003cstrong\u003eready to drop onto a 9mm-compatible AR-15 pistol lower receiver\u003c\/strong\u003e (lower sold separately), making it an easy way to add or complete a 9mm AR pistol build.\u003c\/span\u003e\u003c\/p\u003e\n\n\u003cp\u003e\u003cspan style=\"font-size: 14pt;\"\u003eThis Stern Defense pistol upper is a compact foundation for a 9mm AR pistol, offering a short overall footprint, modular M-LOK accessory support, and the reliability needed for range or defensive use.\u003c\/span\u003e\u003c\/p\u003e","brand":"Stern Defense","offers":[{"title":"Default Title","offer_id":55376217080130,"sku":"S76200","price":419.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0997\/7921\/5682\/files\/alt_eec5dee5-e260-43b5-9c31-3b78d9a03a95.jpg?v=1785237865"},{"product_id":"stern-defense-sd-bu45-45-acp-8620-steel-mag-phosphate-ar-15-m16-bolt","title":"Stern Defense SD-BU45 .45 ACP 8620 Steel Mag Phosphate AR-15\/M16 Bolt","description":"\u003cp\u003e\u003cspan style=\"font-size: 14pt;\"\u003eThe \u003cstrong\u003e\u003cspan style=\"background-color: #ffff00;\"\u003eStern Defense SD-BU45\u003c\/span\u003e\u003c\/strong\u003e is a dedicated \u003cstrong\u003e\u003cspan style=\"background-color: #ffff00;\"\u003e.45 ACP\u003c\/span\u003e\u003c\/strong\u003e bolt engineered for AR-15\/M16 platform builds chambered in pistol caliber. Machined from \u003cstrong\u003e8620 AISI steel\u003c\/strong\u003e and finished in \u003cstrong\u003eMag Phosphate\u003c\/strong\u003e for durability and corrosion resistance, this bolt is designed to drop into compatible uppers feeding from \u003cstrong\u003eGlock-pattern .45 ACP magazines\u003c\/strong\u003e.\u003c\/span\u003e\u003c\/p\u003e\u003cp\u003e\u003cspan style=\"font-size: 14pt;\"\u003eThe SD-BU45 is built to fit \u003cstrong\u003eMil-Spec and Glock-pattern upper receivers\u003c\/strong\u003e, making it a direct replacement or build component for AR-15 pistol caliber carbines and rifles running .45 ACP. 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