Shop › SCO ASR MUZZLE BRAKE 3/4"X24 .338CAL SCO ASR MUZZLE BRAKE 3/4"X24 .338CAL $79.90 SilencerCo Harvester Big Bore, 3/4X24 Muzzle Brake, Black AC858 Quantity: Add To Cart Added! SilencerCo Harvester Big Bore, 3/4X24 Muzzle Brake, Black AC858