JE Machine Tech PS-BTA Combo 4 A2 Buffer Tube Kit - 3-Pc

The JE Machine Tech PS-BTA Combo 4 is a complete 3-piece A2 buffer tube kit built around the company's signature fixed-stock buffer tube for the AR-15 platform. Designed for builders installing or rebuilding a traditional A2-style fixed stock setup, this combo packages the three core installation components into one convenient matched set.

The foundation of the kit is the A1 buffer tube, precision-cut from 6061-T6 aluminum to Mil-Spec standards so it correctly matches the receiver extension on a standard AR-15 lower. Inside the tube sits the A2 rifle length buffer tube spring (long), tuned for the longer A2 receiver extension found on fixed rifle-length stocks, with the A2 buffer tube screw threading into the rear to retain the action spring, spacer, and stock assembly in place.

Whether you are finishing a new build, replacing worn hardware on a service rifle, or upgrading to JE Machine's well-regarded A1/A2 tube, the PS-BTA Combo 4 gives you the correct buffer tube, rifle-length spring, and A2 screw in one matched set - no need to piece the components together separately.

Kit Includes:

• 1x A1 Buffer Tube
• 1x A2 Rifle Length Buffer Tube Spring (Long)
• 1x A2 Buffer Tube Screw