The Battle Arms Development THUMPER muzzle device is a precision-machined brake designed to reduce recoil and muzzle rise on .30 caliber rifles.
- Type: Muzzle Brake
- Caliber: .30 / 7.62mm
- Thread Pitch: 5/8×24 TPI
- Material: Steel
- Finish: Black Nitride
- Compatible Firearms: AR-15 (.300 BLK), AR-10 (.308/7.62 NATO), bolt-action rifles with 5/8×24 threads
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