The JE Machine Tech Pistol Buffer Tube (brand part no. PS-BTP) is a receiver extension built for AR-platform pistols rather than rifles, giving a pistol-configured lower the housing it needs for the buffer and spring along with a mounting point for a stabilizing arm brace. Unlike a collapsible rifle buffer tube, a pistol tube is a fixed, single-position design with no adjustment notches, matching the way AR pistols are built and regulated. JE Machine Tech makes this tube as a straightforward, no-frills option for builders assembling or repairing an AR pistol lower who need a correctly configured tube rather than a rifle-pattern extension.

Key Specifications

• Configured as a pistol buffer tube, a fixed single-position design rather than a collapsible rifle tube.
• Houses the buffer and action spring for an AR-platform pistol’s cycling.
• Provides the mounting point for a stabilizing arm brace on a pistol-configured lower.
• Built for AR-platform pistol lowers, matching how these builds are legally configured.
• As a fixed-length tube, it has no telescoping positions, giving a stabilizing brace a single, consistent mounting point.

Frequently Asked Questions

Does this buffer tube have adjustment positions like a rifle stock tube? No, a pistol buffer tube is a fixed single-position design, unlike a collapsible rifle tube.

What does this tube attach to on a pistol build? It provides the mounting point for a stabilizing arm brace along with housing the buffer and action spring.

Buy the JE Machine Tech Pistol Buffer Tube

Get your AR pistol build set up with the correct fixed-length tube instead of adapting a rifle-pattern extension. Order it from our AR buffer system selection by JE Machine Tech, shipped fast from our Lubbock, Texas gun shop.