AR-15/M16 Barrel Assemblies

AR-15/M16 Barrel Assemblies from Carolinas First Defense.

Browse our huge array of complete upper receivers and custom barrel assemblies below, including name-brand pieces. We are proud to stock M4 barrel assembly parts and AR 15 barrels. All our AR-15 Carolinas First Defense barrel assemblies are head-spaced and test fired for quality, firing capabilities, and your safety.  You will have the satisfaction in knowing you are receiving a fully functional, effective, quality piece of equipment.  Carolinas First Defense only uses top quality, US made, mil-spec parts.  Our AR15 barrel assemblies come standard with a bolt and carrier and charging handle. Please call us with any questions you might have to take advantage of our extensive experience!