CMMG Makes High Quality Parts and Accessories

CMMG produces high quality parts and accessories for a variety of weapons platforms. You can always rely on CMMG for parts which are correct and within specification. This particular item is a barrel and bolt kit ideal for the builder who wants the ability to customize the parts which are installed in the caliber specific build.

CMMG AR-15 Barrel/BCG Kit (Matte Black) Specifications and Features:

• CMMG 57D3F68
• AR-15 Barrel and Bolt Carrier Group
• 5.7x28mm FN
• 16.1" Medium Taper 416 Stainless Steel Barrel
• 1:9" Twist Rate
• Thread 1/2x28
• Patented Radial Delayed Blowback
• CMMG Lifetime Quality Guarantee
• Overall Weight 2lbs 7oz
• Salt Bath Nitride Finish
• Matte Black

Includes:

• Barrel
• Bolt Carrier Group

Fits:

• AR-15 Upper Receivers