The TacFire H2 AR-10 Buffer Tube Kit in black is a complete mil-spec buffer assembly from TacFire (brand part no. MAR047-H2-A) that includes an H2-weight buffer, a carbine-length buffer spring, a standard end plate, a castle nut, and a six-position buffer tube. The heavier H2 buffer adds mass compared to a standard buffer, which helps smooth out the recoil impulse and cycling on AR-10 pattern rifles chambered in larger calibers. Buying the full kit rather than individual parts ensures every component is matched and mil-spec compatible for a straightforward drop-in buffer system upgrade.

Key Specifications

• Platform fit is AR-10.
• Buffer weight is H2 (heavier than standard).
• Includes buffer, carbine-length spring, end plate, castle nut, and buffer tube.
• Tube configuration is six-position.
• Color is black.

Frequently Asked Questions

What does the "H2" buffer weight designation mean?
H2 indicates a heavier buffer weight than standard, adding mass to help reduce felt recoil and smooth cycling.

Does this kit include the buffer tube, or just the buffer and spring?
It’s a complete kit including the buffer, spring, end plate, castle nut, and six-position buffer tube.

TacFire builds this kit, part of our AR buffer system selection.

Buy the TacFire H2 AR-10 Buffer Tube Kit

Smooth out your AR-10’s cycling with the TacFire H2 Buffer Tube Kit — ships fast from a Lubbock, TX gun shop.