{"product_id":"cmc-triggers-enhanced-ar-15-223-5-56-300-blk-bolt-carrier-group-black-nitride","title":"CMC Triggers Enhanced AR-15 .223\/5.56\/.300 BLK Bolt Carrier Group - Black Nitride","description":"\u003cp\u003e\u003cspan style=\"font-size: 14pt;\"\u003eThe \u003cspan style=\"background-color: #ffff00;\"\u003e\u003cstrong\u003eCMC Triggers Enhanced AR-15 Bolt Carrier Group\u003c\/strong\u003e\u003c\/span\u003e is a complete replacement or upgrade assembly compatible with \u003cspan style=\"background-color: #ffff00;\"\u003e\u003cstrong\u003e223 Remington, 5.56x45mm NATO and 300 Blackout\u003c\/strong\u003e\u003c\/span\u003e. Its enhanced carrier geometry, increased mass and enlarged forward gas ports are designed with suppressed operation and short-barreled rifle configurations in mind.\u003c\/span\u003e\u003c\/p\u003e\u003cp\u003e\u003cspan style=\"font-size: 14pt;\"\u003eThe carrier is made from \u003cstrong\u003ecase-hardened 8620 steel\u003c\/strong\u003e and has a \u003cstrong\u003eblack nitride finish\u003c\/strong\u003e. A flared rear is intended to reduce carrier tilt or cant during recoil, while relocated bearing surfaces and fewer contact points are designed to reduce friction. The added carrier mass is intended to help maintain gas pressure and dwell time during extraction, particularly in suppressed or short-barreled setups.\u003c\/span\u003e\u003c\/p\u003e\u003cp\u003e\u003cspan style=\"font-size: 14pt;\"\u003eThe bolt is made from \u003cstrong\u003ecase-hardened 9310 steel\u003c\/strong\u003e to \u003cstrong\u003eMil-Spec dimensions\u003c\/strong\u003e and is both \u003cstrong\u003eMPI and HPT tested\u003c\/strong\u003e. Its external surfaces and the carbon-collection area behind the gas rings are CNC-ground after heat treatment. Bolt components are shot-peened and black-nitride coated, and the extractor uses a \u003cstrong\u003eMil-Spec extractor spring and O-ring\u003c\/strong\u003e.\u003c\/span\u003e\u003c\/p\u003e\u003cp\u003e\u003cspan style=\"font-size: 14pt;\"\u003eAdditional components include a \u003cstrong\u003eMil-Spec 8740 steel firing pin\u003c\/strong\u003e and a \u003cstrong\u003ehardened 4340 steel cam pin\u003c\/strong\u003e. The assembly has a \u003cstrong\u003eblack\u003c\/strong\u003e color and 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":"CMC Products","offers":[{"title":"Default Title","offer_id":54988169544002,"sku":"112852","price":157.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0997\/7921\/5682\/files\/hires_1ca3d3ef-90ae-46af-9ef1-0899afef5aee.png?v=1784127169","url":"https:\/\/centerfiresystems.com\/products\/cmc-triggers-enhanced-ar-15-223-5-56-300-blk-bolt-carrier-group-black-nitride","provider":"Centerfire Systems","version":"1.0","type":"link"}