Enhance your AR pistol build with the Battle Arms Sabretube Pistol Midlength Receiver Extension Direct to Receiver. This precision-engineered buffer tube delivers a lightweight, secure mounting solution designed specifically for modern pistol configurations where traditional castle nut setups are unnecessary.
Key Features
- Direct-to-receiver mounting eliminates the need for a castle nut, providing a streamlined installation on compatible platforms including certain AR, AK, MPX, and MCX systems.
- Lightweight 6061 aluminum construction weighs just 4.2 ounces, helping reduce overall firearm weight without sacrificing durability.
- Midlength design measures 8 1/4 inches for optimal length-of-pull on pistol builds while maintaining compatibility with standard carbine buffers and springs.
- Signature dimpled pattern offers a distinctive, functional aesthetic that also aids in grip during handling.
- Mil-spec hard anodized finish ensures corrosion resistance and long-term reliability in demanding environments.
Specifications
- Weight: 4.2 oz (tube only)
- Length: Midlength (8 1/4 in length of pull)
- Diameter: 1.25 in
- Material: 6061 aircraft-grade aluminum
- Mounting: Direct to receiver (requires threaded rear takedown pin hole and captured spring/screw)
- Compatibility: Pistol AR builds and select non-standard receivers; not compatible with unmodified standard AR-15 receivers
Why Choose This Product
Traditional buffer tubes often add unnecessary weight and complexity with castle nuts and end plates. The Sabretube solves these pain points by offering a direct-mount design that simplifies assembly and trims ounces from your build. Its midlength profile strikes the perfect balance between compactness and functionality for pistol-length applications, while the unique dimpled texture provides both visual appeal and practical handling benefits.
Whether you’re constructing a lightweight AR pistol or upgrading an existing platform, this receiver extension delivers professional-grade performance in a compact package.










