CMMG 5.56x45mm NATO 16.1" Barrel Sub-Assembly Stainless Steel Midlength

The CMMG 55D590A Barrel Sub-Assembly is an exceptional component designed for those looking to build a custom AR-15 upper group, featuring a 16.10-inch barrel crafted from durable 416R stainless steel with a sleek bead blasted finish. This midlength barrel boasts a medium taper profile, ensuring optimal balance and handling while maintaining accuracy. With a 1:7 twist rate and a 5.56x45mm NATO chamber, it is engineered to deliver reliable performance with a variety of ammunition types. The barrel comes with a properly installed M4 barrel extension and is headspaced for precision, making it ready for immediate installation. Additionally, the threaded 1/2-28 muzzle allows for easy attachment of suppressors or muzzle devices, while the midlength gas port and .750-inch gas journal provide smooth cycling and reduced recoil. Whether you are a seasoned shooter or a novice enthusiast, the CMMG 55D590A Barrel Sub-Assembly is an ideal choice for enhancing your rifle's performance and versatility on the range or in the field.