CMMG 16.1" 5.7x28mm Barrel and Bolt Carrier Group Kit

• Enhanced performance: The CMMG Barrel with Bolt Carrier Group in 5.7x28mm offers a unique Radial Delayed Blowback operating system, resulting in reduced felt recoil and improved last round bolt hold open functionality. Experience enhanced performance like never before.
• Versatile compatibility: Designed to be assembled into a Mk4/mil-spec AR15 upper, this barrel and bolt kit works seamlessly with both CMMG Mk57 lower receivers and Mk4/AR15 mil-spec lower receivers when using CMMG 5.7 AR Conversion Magazines. Enjoy the flexibility of building your ideal AR pistol or SBR in 5.7x28mm.
• Durable construction: Crafted from stainless steel with a Nitride finish, this 16.1" 5.7x28mm barrel and bolt carrier group ensures long-lasting durability and reliable performance. Invest in a high-quality product that will withstand the test of time.

Looking to build an AR pistol or SBR in 5.7x28mm? Look no further than the CMMG Barrel with Bolt Carrier Group AR-15 5.7x28mm Stainless Steel Nitride! This kit is specifically designed to work seamlessly with CMMG's patented Radial Delayed Blowback operating system, giving you a top-notch performance.

Unlike traditional direct blowback systems, the Radial Delayed Blowback not only reduces the weight in your BCG but also delivers less felt recoil compared to a straight blowback system. And that's not all! This kit also features a last round bolt hold open, ensuring you never miss a beat during your shooting sessions.

Crafted with precision, the 16.1" 5.7x28mm Barrel is made from durable stainless steel and finished with a sleek nitride coating. This not only enhances its longevity but also adds a touch of style to your firearm. The 5.7x28mm Bolt Carrier Group in classic black completes the kit, offering reliable and smooth operation.

Designed to be assembled into a Mk4/mil-spec AR15 upper, this kit works seamlessly with either a CMMG Mk57 lower receiver or Mk4/AR15 mil-spec lower receiver (when using CMMG 5.7 AR Conversion Magazines). So, whether you're upgrading your existing firearm or starting a new build from scratch, this kit has got you covered.

Experience the power and precision of the CMMG Barrel with Bolt Carrier Group AR-15 5.7x28mm Stainless Steel Nitride. Get ready to take your shooting game to the next level!