The TacFire Heavy Pistol Buffer (brand part no. MAR044) is a purpose-built recoil buffer for pistol-length AR-15/M4 platforms, giving short-gas-system builds the extra mass they need to cycle smoothly. Machined to tight tolerances and filled with high-quality steel, this 4.9 oz buffer slows bolt carrier velocity and softens the recoil impulse that pistol builds are known for. The black anodized aluminum body is built to hold up to repeated cycling without scoring or damaging the buffer tube. It is a simple, affordable way to smooth out an AR pistol that feels harsh or over-buffered on the range.

Key Specifications

• Weighs 4.9 oz, adding meaningful mass to slow bolt velocity on pistol-length systems.
• Filled with high-quality steel for consistent, repeatable buffer weight.
• Machined to tight tolerances for smooth, consistent travel inside the tube.
• Finished in black anodized aluminum for a durable, low-glare exterior.
• Sized specifically for pistol-length AR-15/M4 buffer tubes and receiver extensions.
• Engineered to run safely inside the buffer tube without causing wear or damage.

Frequently Asked Questions

What platform is this buffer designed for? It is sized specifically for pistol-length AR-15/M4 buffer tubes, not carbine or rifle-length systems.

Why add extra buffer weight to a pistol build? Pistol-length gas systems have a short dwell time, and added buffer mass helps slow the bolt carrier for smoother, more controlled cycling.

Is it compatible with standard mil-spec tubes? Yes, it is built to run in most pistol-length AR-15/M4 buffer tubes without modification.

Buy the TacFire Heavy Pistol Buffer for AR-15/M4

Smooth out your AR pistol’s recoil impulse with a buffer built for the job. Order the TacFire Heavy Pistol Buffer from TacFire, part of our rifle parts selection, shipped fast from our Lubbock, Texas gun shop.