{"product_id":"cmc-triggers-81621-ar-15-ar-10-gas-tube-pistol-length-6-705-304-stainless-steel-black-nitride","title":"CMC Triggers 81621 AR-15\/AR-10 Gas Tube Pistol Length 6.705\" 304 Stainless Steel - Black Nitride","description":"\u003cp\u003e\u003cspan style=\"font-size: 14pt;\"\u003eThe \u003cstrong\u003e\u003cspan style=\"background-color: #ffff00;\"\u003eCMC Triggers 81621\u003c\/span\u003e\u003c\/strong\u003e \u003cstrong\u003egas tube\u003c\/strong\u003e is a precision-machined replacement and upgrade component for the \u003cstrong\u003eAR-15\u003c\/strong\u003e and \u003cstrong\u003eAR-10\u003c\/strong\u003e platforms. Cut from solid \u003cstrong\u003e304 stainless steel\u003c\/strong\u003e and finished in a durable \u003cstrong\u003eblack nitride\u003c\/strong\u003e coating, this tube is built to resist corrosion, wear, and fatigue under repeated firing cycles.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"font-size: 14pt;\"\u003eAt \u003cstrong\u003e6.705\"\u003c\/strong\u003e overall length, the 81621 is dimensioned for a \u003cstrong\u003epistol-length\u003c\/strong\u003e gas system, pairing with a compatible low-profile gas block to route expanding gases from the barrel back to the bolt carrier. The matte \u003cstrong\u003eblack nitride\u003c\/strong\u003e finish adds surface hardness and corrosion resistance while blending cleanly with most AR upper receivers and components.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"font-size: 14pt;\"\u003eCMC Triggers machines this tube from \u003cstrong\u003e304 stainless steel\u003c\/strong\u003e for strength and long service life, backed by the company's \u003cstrong\u003e100% lifetime warranty\u003c\/strong\u003e. \u003cstrong\u003eMade in the USA\u003c\/strong\u003e, the 81621 is a quality direct-fit gas tube for pistol-length AR builds, replacement of worn factory tubes, or custom upper-receiver projects.\u003c\/span\u003e\u003c\/p\u003e","brand":"CMC Triggers","offers":[{"title":"Default Title","offer_id":55003129315650,"sku":"110610","price":16.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0997\/7921\/5682\/files\/hires_765a7bef-c1a5-40a0-89ea-850bb01d8afa.png?v=1784556681","url":"https:\/\/centerfiresystems.com\/products\/cmc-triggers-81621-ar-15-ar-10-gas-tube-pistol-length-6-705-304-stainless-steel-black-nitride","provider":"Centerfire Systems","version":"1.0","type":"link"}