Barrel Assembly, 16.1" MT 4140CM SBN, 5.56mm

Manufacture ID: 55DC747

CMMG, Inc. Barrel Assembly, 16.1" MT 4140CM SBN, 5.56mm

Specifications:

- Length: 16.1", 1:7" Twist
- Chamber: 5.56 mm
- Profile: Medium Taper Profile
- Material and Finish: 4140 CrMo, Salt Bath Nitride Finish
- Muzzle Thread: 1/2"-28 TPI
- Gas Port Location: Midlength
- Gas Block: "F" Marked Front Sight Base
- Includes barrel nut and handguard cap.