Barrel Sub-Assm, 10.5″ MT 4140CM SBN, 5.56mm

Barrels are the heart of a rifle or pistol, CMMG barrels are made with quality and precision as top priority. The 10.5” 5.56mm barrel is no exception. Rest assured that all barrel sub-assemblies are properly headspaced and perfect for your next AR build.

**All NFA rules apply** See linked CMMG Resource article for more information.

All CMMG products come with our Lifetime Quality Guarantee.