CMMG 8″ Barrel and Bolt Kit 5.7x28mm RDB

Enhance your AR setup with the CMMG 8″ Barrel and Bolt Kit 5.7x28mm RDB. Designed for precision and reliability, this kit features a durable 8-inch barrel crafted from 4140 chrome moly steel. The sleek black matte finish and salt bath nitride treatment ensure long-lasting performance. With a 1:9 twist rate and threaded muzzle (1/2″x28″ thread pitch), it’s perfect for accessory attachments. Optimized for radial delayed blowback operation, this kit is a must-have for firearm enthusiasts. Trust CMMG for American-made quality and elevate your shooting experience today. UPC: 810097502406.