{"product_id":"luth-ar-bl-04-ar-15-gas-tube-304-stainless-steel-rifle-length","title":"Luth-AR BL-04 AR-15 Gas Tube - 304 Stainless Steel - Rifle Length","description":"\u003cp\u003e\u003cspan style=\"font-size: 14pt;\"\u003eThe \u003cstrong\u003e\u003cspan style=\"background-color: #ffff00;\"\u003eLuth-AR BL-04\u003c\/span\u003e\u003c\/strong\u003e is a precision-machined \u003cstrong\u003egas tube\u003c\/strong\u003e for \u003cstrong\u003eAR-15\u003c\/strong\u003e rifles chambered in \u003cstrong\u003e\u003cspan style=\"background-color: #ffff00;\"\u003e.223 Remington \/ 5.56 NATO\u003c\/span\u003e\u003c\/strong\u003e. Cut from solid \u003cstrong\u003e304 stainless steel\u003c\/strong\u003e and finished to \u003cstrong\u003eArmy-spec heat treatment\u003c\/strong\u003e, this rifle-length tube measures \u003cstrong\u003e15-3\/16\" (15.1875\")\u003c\/strong\u003e overall and routes the gas bleed-off from the gas block back to the bolt carrier group inside the upper receiver.\u003c\/span\u003e\u003c\/p\u003e\n\n\u003cp\u003e\u003cspan style=\"font-size: 14pt;\"\u003eThe BL-04 is intended for \u003cstrong\u003erifle-length\u003c\/strong\u003e gas system builds and serves as a drop-in replacement or upgrade for any standard AR-15 upper that calls for the longer tube. Its stainless construction resists corrosion and wear from repeated cycling, while the precision-machined gas port delivers consistent flow for reliable function. Installation is straightforward - the included \u003cstrong\u003eroll pin\u003c\/strong\u003e locks the tube into the gas block.\u003c\/span\u003e\u003c\/p\u003e\n\n\u003cp\u003e\u003cspan style=\"font-size: 14pt;\"\u003eManufactured by Luth-AR as part of their AR-15 component lineup, the BL-04 ships ready to drop into your next build or service project.\u003c\/span\u003e\u003c\/p\u003e","brand":"Luth-AR","offers":[{"title":"Default Title","offer_id":55423853101378,"sku":"186428","price":13.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0997\/7921\/5682\/files\/hires_7e5d0d6b-9e20-4201-8c30-cff047197a4c.png?v=1785310989","url":"https:\/\/centerfiresystems.com\/products\/luth-ar-bl-04-ar-15-gas-tube-304-stainless-steel-rifle-length","provider":"Centerfire Systems","version":"1.0","type":"link"}