American Precision Arms G3L5830N Gen 3 Little Bastard Self Timing Brake Black Nitride Stainless Steel with 5/8"-24 tpi Threads, 2.55" OAL & 1" Diameter for 30 Cal Rifle $140.51
Alexander Arms MBEOTNKKIT Tank Muzzle Brake Kit Black Steel with 49/64-20 tpi Threads 3.50" OAL 1.50" Diameter for 50 Beowulf $162.93