The H2 buffer is usually the best buffer for a carbine gas system in a 16" rifle, cycling reliably with the least recoil possible. Most shooters report it works just fine with a mid-length setup, too.

Can you use a rifle buffer in a carbine?

The important headline here is that these two sizes are NOT interchangeable. Rifle length buffer weights are used when a standard A2 buffer tube is installed for a fixed stock. ... Carbine buffer weights are used with most collapsible stocks that utilize a carbine buffer tube.

What is a standard carbine buffer?

Carbine Buffer Weights (3 oz)

A standard buffer is made of an aluminum housing with three puck-shaped steel weights and three rubber washers to prevent the steel pucks from slapping directly into each other. These buffers are designed for use in traditional carbine-length gas systems and with a wide range of ammo.