When it comes to controlling recoil, the custom options offered by the Lancer Systems Viper .30-caliber Brake makes it simple for users to fine-tune the amount of recoil reduction needed for their precision-rifle platforms. The Lancer Systems Viper .30-caliber Brake is constructed using four separate jets, each of which can be tuned to provide a custom level of recoil reduction and direction. The jets are located on the top of the brake and work in concert with a built-in blast chamber. Available in stainless-steel or black-nitride steel Fits 5/8×24 TPI threaded muzzles Ships with crush washer for installation The Lancer Systems Viper .30-caliber Brake also Mfg: Lancer Systems