CMMG AR-15 Standard Barrel Nut Steel Black 

CMMG Inc. makes high quality parts and accessories for the AR-15 platform. This particular barrel nut is made from steel and features a nitride finish. CMMG manufacturers these barrels to strict tolerances to ensure high quality and years of reliable service.

Features and Specifications:
Manufacturer Number: 55DA296
Steel construction
Nitride Finish
Black