5.4 oz rifle-length buffer for an AR-15 running an A2 rifle receiver extension.
The KAK Industry Standard Rifle Buffer is the full-length buffer an A2 rifle receiver extension is built around. It weighs 5.4 ounces and has a hard black anodized body.
It only works in a rifle-length tube with a rifle action spring. A carbine buffer tube is too short for it; carbine and A5 builds need their own buffers.
Add the KAK Industry AR-15 Standard Rifle Buffer, 5.4 oz to your build and see how it enhances your platform.