Armaspec CARB BFF Tube Kit with End Plate – AR-15 Carbine Stock System

The Armaspec CARB BFF (Buttstock Friction Free) Tube Kit provides smooth, wobble-free stock adjustment on AR-15 carbine platforms. The friction-reducing design eliminates play between the buffer tube and stock while maintaining reliable lockup at all length-of-pull positions, improving shooter control and consistency.

Machined from 7075-T6 aluminum with a hard-anodized finish, this complete kit includes a mil-spec diameter carbine buffer tube, castle nut, and end plate. The precision-engineered tube installs using standard AR-15 lower receiver threads and accepts mil-spec carbine stocks. Compatible with standard carbine buffer and spring systems.

• Type: Carbine buffer tube kit
• Compatible Firearms: AR-15 carbine platforms
• Material: 7075-T6 aluminum
• Finish: Hard anodized
• Includes: Buffer tube, castle nut, end plate
• Installation: Standard AR-15 lower receiver threads