The J&E Machine Tech DPMS Platform Mil-Spec Buffer Tube Kit (brand part no. PS-BTMCOMBO) is a complete buffer assembly built for DPMS-pattern AR-15 lower receivers. The kit pairs a 6061 T6 grade aluminum buffer tube with a matching black buffer, buffer spring, castle nut, and standard end plate, giving builders everything needed to finish a mil-spec DPMS lower in one purchase. Because every part is sized to mil-spec DPMS platform tolerances, the kit drops straight in without any fitting work. It’s a straightforward, made-in-the-USA choice for anyone building a DPMS-pattern AR-15 or replacing a damaged factory buffer tube assembly.

Key Specifications

• The tube is machined from 6061 T6 grade aluminum for a durable, lightweight build.
• The kit includes a matching black buffer and buffer spring.
• It includes a castle nut and a standard end plate.
• It’s sized to mil-spec DPMS platform tolerances.
• It’s made in the USA.

Frequently Asked Questions

What does this kit include? A buffer tube, buffer, buffer spring, castle nut, and standard end plate.

What platform is this kit built for? Mil-spec DPMS-pattern AR-15 lower receivers.

Buy the J&E DPMS Mil-Spec Buffer Tube Kit

Finish your DPMS-pattern build in one order with the J&E Machine Tech Buffer Tube Kit. Shop more J&E Machine Tech gun parts kits and get fast shipping from our Lubbock, Texas gun shop.