{"product_id":"cmmg-bbl-bcg-kit-16-1-9mm-4140cm","title":"Cmmg Bbl Bcg Kit 16.1\" 9mm 4140cm","description":"\u003ch2 id=\"product-description\"\u003eProduct Description\u003c\/h2\u003e\n\u003ch3 id=\"product-overview\"\u003eProduct Overview\u003c\/h3\u003e\n\u003cp\u003eThe CMMG BBL BCG Kit 16.1\" 9mm 4140CM is designed for building a Pistol Caliber Carbine using CMMG's Patent Pending Radial Delayed Blowback System. This kit is optimized for use with mil-spec AR-15 upper receivers with a modified ejection port, ensuring reliability and precision.\u003c\/p\u003e\n\u003ch3 id=\"features\"\u003eFeatures\u003c\/h3\u003e\n\u003cp\u003eThe kit includes a 16.1-inch barrel made from 4140CM steel, providing durability and precision. The barrel is finished in SBN (Salt Blasted Nickel) for a sleek, professional look. The operating system employed is the Radial Delayed Blowback (RDB), which offers several advantages over traditional direct blowback systems.\u003c\/p\u003e\n\u003ch3 id=\"specifications\"\u003eSpecifications\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eCaliber\u003c\/strong\u003e: 9mm\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBarrel Length\u003c\/strong\u003e: 16.1 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBarrel Twist\u003c\/strong\u003e: 1:10\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBarrel Contour\u003c\/strong\u003e: MT\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBarrel Material\u003c\/strong\u003e: 4140CM\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMuzzle Thread\u003c\/strong\u003e: 1\/2 X 28\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eGas Port Location\u003c\/strong\u003e: N\/A\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eGas Block\u003c\/strong\u003e: N\/A\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFinish\u003c\/strong\u003e: SBN\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWeight\u003c\/strong\u003e: 2.5 lbs\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3 id=\"key-features\"\u003eKey Features\u003c\/h3\u003e\n\u003ch4 id=\"radial-delayed-blowback-system\"\u003eRadial Delayed Blowback System\u003c\/h4\u003e\n\u003cp\u003eThe Radial Delayed Blowback system used in this kit is designed to slow the BCG (Bolt Carrier Group) by forcing the bolt to rotate and unlock. This results in a lighter BCG and less felt recoil compared to traditional direct blowback systems. The RDB system is more efficient and reliable, making it an excellent choice for a Pistol Caliber Carbine.\u003c\/p\u003e\n\u003ch4 id=\"compatibility\"\u003eCompatibility\u003c\/h4\u003e\n\u003cp\u003eThe kit is designed to work exclusively with mil-spec AR-15 upper receivers that have a modified ejection port. It is compatible with most mil-spec AR-15 lowers when used with 9 AR Conversion mags. Additionally, it is compatible with CMMG's MkGs, Mk17, and Mk9 lowers. Older Mk9 lowers may require a retrofit kit to convert them to a Radial Delayed Blowback compatible lower.\u003c\/p\u003e\n\u003ch3 id=\"benefits\"\u003eBenefits\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eEfficiency\u003c\/strong\u003e: The RDB system minimizes the felt recoil, making the rifle more manageable and comfortable to shoot.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDurability\u003c\/strong\u003e: The 4140CM barrel provides excellent durability and precision, ensuring long-term performance.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eReliability\u003c\/strong\u003e: The kit is designed to work seamlessly with AR-15 components, providing a reliable and precise shooting experience.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3 id=\"conclusion\"\u003eConclusion\u003c\/h3\u003e\n\u003cp\u003eThe CMMG BBL BCG Kit 16.1\" 9mm 4140CM offers a unique blend of efficiency, durability, and reliability. Its Radial Delayed Blowback system and high-quality barrel make it an excellent choice for building a Pistol Caliber Carbine. With its compatibility with various AR-15 components and CMMG's lifetime quality guarantee, this kit is a solid investment for any firearms enthusiast.\u003c\/p\u003e\n","brand":"CMMG","offers":[{"title":"Default Title","offer_id":45850435420379,"sku":"CMMG99DE642","price":403.99,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0658\/1072\/7131\/files\/RPLCMMG99DE642.jpg?v=1721075281","url":"https:\/\/www.atcostammo.com\/products\/cmmg-bbl-bcg-kit-16-1-9mm-4140cm","provider":"AtCostAmmo.com","version":"1.0","type":"link"}