American Precision Arms Gen 4 Fat Bastard Self Timing Muzzle Brake 5/8x24 / .30 / Stainless G4F5830S

APA is proud to introduce the Gen 4 Fat Bastard. The Gen 4 is a culmination of engineering improvements as well as a little bit of what you asked, we listened. As the long-range precision rifle community grows, the shooter has gotten more refined and discriminating. This has presented us here at APA with new challenges to improve.

The new calibrated U.R.P tunable top ports have been designed for maximum adjustment making the Gen 4 line of brakes the flattest shooting brakes available hands down. By testing port size, location, and how the gas feeds into them, we have been able to make these tunable top ports capable of generating zero vertical movement.

The new fine-tuned Bastard port has been engineered to decrease concussion while retaining maximum recoil reduction. In the muzzle brake community, there is an unwritten law that says "more concussion, more recoil reduction" and vice versa. This is something we really dug into, and we have found this to simply be not true. Borrowing from decades of research in the golf industry with their "sound is feel" philosophy, we wanted to figure out why a technically more effective and superior muzzle brakes would often anecdotally "feel" harsher even though the gun moved less and moved slower. Well, we had a eureka moment with how the sound or tone works in conjunction with the physical recoil. The new fine-tuned Bastard port and internal manifold produce a softer and sonically smoother recoil impulse by shaping the sound, into a lower frequency. The perception to the shooter is a much softer shooting rifle. This brake is easier on the ears and easier to stay in target, period.

Specifications