The Dirty Bird Industries AR-15 H2 buffer is a 4.6 oz weight. 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 2 Tungsten Weights (4.7oz) Machined aluminum body Rubber Bumper Made in the U.S.A.3.25" H2 Buffer for use with MIL-SPEC and Commercial spec AR-15 receiver extensions. Proudly made in the U.S.A.