APA Fat Bastard, 4 port, 3/4-24 Stainless. This brake requires gunsmith installation, bore must be opened to desired safe size

APA Fat Bastard GEN2, 4 port, 3/4-24. This brake is black nitrided, has a self timing hex nut, and bore ready for 338 and smaller cartridges

**** As of 3/1/22 APA Fat Bastard G2 Muzzle brakes are all bored out to 338 bullet spec ****

APA Fat Bastard GEN2, 4 port, 5/8-24. This brake is nitrided, has a self timing hex nut, and bore ready for 30 cal and smaller cartridges

**** As of 3/1/22 APA Fat Bastard G2 Muzzle brakes are all bored out to 338 bullet spec ****