TacFire MAR040 Mil-Spec Buffer Tube Black Hardcoat Anodized Aluminum AR-15

The TacFire MAR040 Mil-Spec Buffer Tube is a precision-machined AR-15 component that forms the foundation of the rifle's buffer and recoil system. Machined from 6061-T6 aircraft-grade aluminum, this mil-spec diameter tube drops into any standard AR-15 lower receiver and provides the housing for the buffer, buffer spring, and castle nut that lock the assembly together at the rear of the carbine.

The tube is finished in matte black with a Type III Class II hard coat anodizing that resists corrosion and wear under hard field use. At 7.3 inches long, this is the standard mil-spec configuration that mates with mil-spec buttstocks, ensuring broad compatibility across the most popular AR-15 stock offerings on the market.

An excellent choice for completing a new AR-15 build or replacing a worn or damaged tube on a service rifle, the TacFire MAR040 offers the durability and fit of a premium mil-spec component at an accessible price point. Buffer and spring are not included.