{"product_id":"cmc-ar15-bcg-mil-spec-5-56-223-blk","title":"CMC Triggers - AR-15 Bolt Carrier Group 5.56\/.223 Nickel Boron","description":"\u003cp\u003eThe \u003cb\u003eCMC Triggers AR-15 Bolt Carrier Group\u003c\/b\u003e is a premium component designed to enhance the performance and reliability of your rifle. Engineered to Mil-Spec dimensions, this bolt carrier group is compatible with 5.56 and .223 calibers, ensuring a precise fit and optimal function. The standout feature of this BCG is its \u003cb\u003eNickel Boron coating\u003c\/b\u003e, which provides a slick surface that reduces friction and makes cleaning a breeze. Many shooters find that this coating allows for operation with minimal lubrication, a significant advantage for maintenance.\u003c\/p\u003e \u003cp\u003eThe carrier is crafted from \u003cb\u003eDomestic Aircraft Quality 8620 Steel\u003c\/b\u003e, with \u003cb\u003eGrade 8 Gas Key Screws\u003c\/b\u003e that are properly staked, ensuring durability and secure gas key attachment. The bolt is made from either \u003cb\u003e9310 or C158 steel\u003c\/b\u003e, both known for their strength and resilience. Additional components like the extractor and cam pin are made from \u003cb\u003e4140 Steel\u003c\/b\u003e, and the firing pin is finished in \u003cb\u003eHard Chrome\/Ground 8740\u003c\/b\u003e, contributing to the overall robustness of this bolt carrier group.\u003c\/p\u003e \u003cp\u003eThis BCG is ideal for AR-15 enthusiasts who demand high performance and ease of maintenance, making it a valuable upgrade for any rifle setup.\u003c\/p\u003e \u003cp\u003e\u003cb\u003eKey Features\u003c\/b\u003e\u003c\/p\u003e \u003cul\u003e \u003cli\u003e\n\u003cb\u003eCaliber Compatibility:\u003c\/b\u003e 5.56\/.223\u003c\/li\u003e \u003cli\u003e\n\u003cb\u003eCoating:\u003c\/b\u003e Nickel Boron for reduced friction and easy cleaning\u003c\/li\u003e \u003cli\u003e\n\u003cb\u003eCarrier Material:\u003c\/b\u003e Domestic Aircraft Quality 8620 Steel\u003c\/li\u003e \u003cli\u003e\n\u003cb\u003eGas Key Screws:\u003c\/b\u003e Grade 8, properly staked\u003c\/li\u003e \u003cli\u003e\n\u003cb\u003eBolt Material:\u003c\/b\u003e 9310 or C158 Steel\u003c\/li\u003e \u003cli\u003e\n\u003cb\u003eExtractor Material:\u003c\/b\u003e 4140 Steel\u003c\/li\u003e \u003cli\u003e\n\u003cb\u003eCam Pin Material:\u003c\/b\u003e 4140 Steel\u003c\/li\u003e \u003cli\u003e\n\u003cb\u003eFiring Pin Material:\u003c\/b\u003e Hard Chrome\/Ground 8740\u003c\/li\u003e \u003cli\u003e\n\u003cb\u003eMil-Spec Features:\u003c\/b\u003e O-Ring and Gas Rings (3)\u003c\/li\u003e \u003c\/ul\u003e \u003cp\u003e\u003cb\u003eSpecifications\u003c\/b\u003e\u003c\/p\u003e \u003cul\u003e \u003cli\u003e\n\u003cb\u003eColor:\u003c\/b\u003e Black\u003c\/li\u003e \u003cli\u003e\n\u003cb\u003eSubCategory:\u003c\/b\u003e Bolts \u0026amp; Bolt Carrier Groups\u003c\/li\u003e \u003cli\u003e\n\u003cb\u003eType:\u003c\/b\u003e Bolt Carrier Group\u003c\/li\u003e \u003c\/ul\u003e","brand":"CMC Triggers","offers":[{"title":"Default Title","offer_id":47518184570969,"sku":"RSR-CMC-AR15-BCG-556-NIB","price":245.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0595\/9860\/2329\/files\/cmctriggers_RSR-CMC-AR15-BCG-556-NIB-1.jpg?v=1792525829","url":"https:\/\/mountainready.online\/products\/cmc-ar15-bcg-mil-spec-5-56-223-blk","provider":"mountainready.online","version":"1.0","type":"link"}