The Buffer Tube also known as the Rear Extension as part of the AR-15, AR-10, and LR-308 is used to house the Buffer and Buffer Spring allowing the Buffer weight to absorb the recoil and the Buffer Spring to use it's compression force to return the Bolt Carrier Group back into battery.
Buffer Tube Lengths:
- Pistol
- Carbine
- Rifle
The Buffer Tube is great for anyone looking to build, repair, or needing just a spare.