Product Overview
SKU: CMMG57D88C3
Elevate your next firearm build with the 8" 5.7x28mm Barrel and BCG Kit. This premium kit is engineered for creating a high-performance AR pistol or Short-Barreled Rifle (SBR) chambered in the versatile 5.7x28mm caliber. At its core is CMMG's groundbreaking patented Radial Delayed Blowback operating system. Experience the difference – this innovative system significantly reduces BCG weight compared to conventional direct blowback designs. More importantly, it delivers a noticeably smoother shooting experience with less felt recoil, all while retaining crucial features like last round bolt hold open for enhanced operational efficiency.
Designed for seamless integration, CMMG's 5.7x28mm Barrel and Bolt Kits are intended to be assembled into a standard Mk4/mil-spec AR15 upper receiver. For optimal compatibility, pair this kit with a CMMG Mk57 lower receiver. Alternatively, it works flawlessly with a Mk4/AR15 mil-spec lower receiver when utilizing CMMG 5.7 AR Conversion Magazines. Build with confidence, knowing you're using top-tier components for your tactical project.
Key Features:
- 8-inch 5.7x28mm Barrel: Precision-engineered for optimal performance.
- 5.7x28mm Bolt Carrier Group: Integrated with the Radial Delayed Blowback system.
- Color: Sleek Black finish.
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