The KAK Industry Mil-Spec AR-15 Carbine Buffer Tube Kit (brand part no. AR15-KT-003) is a mil-spec-dimension carbine receiver extension from KAK Industry, giving you a factory-diameter buffer tube to build or repair an AR-15 stock assembly. Because it’s cut to mil-spec dimensions rather than the slightly larger commercial-spec standard, it accepts the widest range of mil-spec stocks, buffers, and springs on the market.

Key Specifications

• Built to mil-spec dimensions, not commercial-spec.
• Sized for a carbine-length buffer system.
• Functions as the receiver extension for a carbine-length AR-15 stock assembly.
• Compatible with mil-spec carbine stocks, buffers, and springs.

Frequently Asked Questions

Mil-spec or commercial-spec? Mil-spec, so it works with the widest range of mil-spec buffer tube stocks, buffers, and springs.

What buffer length does this pair with? Carbine length.

Buy the KAK Industry Mil-Spec AR-15 Carbine Buffer Tube Kit

See more from KAK Industry or browse our AR buffer system parts selection for other AR-15 buffer system parts. Order it from our Lubbock, Texas gun shop as soon as it’s available to ship, and we’ll get it on its way the moment it’s ready.