{"product_id":"luth-ar-bl-04b-pistol-length-gas-tube-6-6875-ar-15-304-stainless-steel","title":"Luth-AR BL-04B Pistol Length Gas Tube 6.6875\" AR-15 - 304 Stainless Steel","description":"\u003cp\u003e\u003cspan style=\"font-size: 14pt;\"\u003eThe \u003cstrong\u003e\u003cspan style=\"background-color: #ffff00;\"\u003eLuth-AR BL-04B\u003c\/span\u003e\u003c\/strong\u003e is a \u003cstrong\u003epistol-length gas tube\u003c\/strong\u003e purpose-built for \u003cstrong\u003eAR-15\u003c\/strong\u003e platforms running a pistol-length gas system. Machined from \u003cstrong\u003e304 stainless steel\u003c\/strong\u003e and processed to \u003cstrong\u003eArmy Spec heat treatment\u003c\/strong\u003e standards, this tube channels exhaust gas from the gas block back to the bolt carrier group, ensuring reliable cycling on shorter AR pistol configurations.\u003c\/span\u003e\u003c\/p\u003e\n\n\u003cp\u003e\u003cspan style=\"font-size: 14pt;\"\u003eMeasuring \u003cstrong\u003e6-11\/16\" overall\u003c\/strong\u003e, the BL-04B serves as a direct drop-in replacement for factory pistol-length gas tubes. The stainless construction delivers excellent corrosion resistance and long service life under regular firing schedules, and the tube ships with the required \u003cstrong\u003eroll pin\u003c\/strong\u003e for installation. It is a solid upgrade or spare for anyone assembling, rebuilding, or maintaining a pistol-length AR-15 upper.\u003c\/span\u003e\u003c\/p\u003e","brand":"Luth-AR","offers":[{"title":"Default Title","offer_id":55233957790018,"sku":"186430","price":10.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0997\/7921\/5682\/files\/hires_34d09b76-3e25-475e-a569-8c252a293d46.png?v=1785008706","url":"https:\/\/centerfiresystems.com\/products\/luth-ar-bl-04b-pistol-length-gas-tube-6-6875-ar-15-304-stainless-steel","provider":"Centerfire Systems","version":"1.0","type":"link"}