- H3 heavy weight (three tungsten weights) for maximum mass and the slowest, smoothest cycle of the carbine buffer range
- Reduces felt recoil, muzzle rise, and bolt bounce for faster follow-up shots
- Helps regulate gas-system over-pressure on suppressed and SBR setups
- Steel weights in a hard-coat aluminum body with a urethane bumper to protect the receiver extension
- Approx. 5.6 oz
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