AR Buffer Tubes / Receiver Extensions

The receiver extension, also known as a buffer tube, is what contains the rearmost portion AR's bolt carrier when it is cycling. We offer a variety of buffer tubes from your standard mil-spec 6 position tube, A2 rifle buffer tubes, 7 position buffer tubes, pistol buffer tubes, and more! Choosing the right buffer tube to match your buffer and spring is critical for the proper functioning of the firearm. Contact us for a custom quote.

We offer the following styles of buffer tubes:

PBT - Standard AR Pistol Buffer Tube

CBT MILSP-6P - 6061 MIL-SPEC Carbine Buffer Tube with 6 positions

CBT MILSP-7P - 6061 MIL-SPEC Carbine Buffer Tube with 7 positions

CBT MILSP-7075 - Hard Anodized 7075 AL MIL-SPEC Carbine Buffer Tube with 6 positions

CBT COMM - Commercial Carbine Buffer Tube with 6 positions 

RBT - Standard AR Rifle Buffer Tube

ECBT-7075 - Extended Carbine Buffer Tube 7075 Hard Anodized Aluminum with 7 positions