One Horse OH-BT01 AR-15 Buffer Tube Kit Carbine Buffer

The One Horse OH-BT01 is a complete AR-15 buffer tube kit built around a Mil-Spec 6-position collapsible buffer tube machined from 7075-T6 aluminum and finished with hardcoat anodizing for long-term durability. It is the matched component set needed to outfit a fresh lower receiver or replace a worn carbine buffer assembly.

The tube is CNC-machined to standard Mil-Spec dimensions so it accepts common AR-15 carbine stocks, castle nuts, and receiver end plates without fitting issues. The hardcoat anodized finish protects the surface from wear, corrosion, and the cosmetic damage that comes from repeated stock removal.

The OH-BT01 ships as a complete kit containing:

• 7075-T6 aluminum 6-position Mil-Spec buffer tube
• Carbine buffer
• Mil-Spec recoil spring
• Receiver end plate

Whether you are finishing a new build or refreshing a high-round-count carbine, the One Horse OH-BT01 delivers a drop-in matched set of components for any standard AR-15 lower receiver.