The Dirty Bird Industries AR-15 H3 buffer is a 5.5oz weight the AR-15. Perfect to keep as a back up or for hard use guns that are intended to be as close to MIL-SPEC as possible. These buffers feature a machined aluminum body with a rubber bumper to dampen recoil.Features: 3.25" carbine buffer 1 Steel Weight and 3 Tungsten Weights (5.5oz) Machined aluminum body Made in the U.S.A.3.25" H3 Buffer for use with MIL-SPEC and Commercial spec AR-15 receiver extensions. Proudly made in the U.S.A.