The American Precision Arms Gen 4 Fat Bastard Self Timing Nitride muzzle brake delivers unmatched control with calibrated U.R.P tunable top ports designed for maximum adjustability and zero vertical movement, making it the flattest shooting brake in its class. Crafted with a 5/8"-24 thread pattern and a compact 3.30 inch overall length paired with a 1.10 inch diameter, this 6mm brake combines precise gas management with a durable nitride finish for lasting performance in demanding field and range conditions. By meticulously testing port size and location, AMERICAN PRECISION ARMS engineered the gas flow into the ports to optimize recoil reduction and maintain a clean bore rhythm, enabling shooters to maintain sight picture and follow-up shots with reduced muzzle rise. The Gen 4 Fat Bastards self timing design simplifies installation and ensures consistent alignment, enhancing accuracy and consistency across varying loads. Ideal for precision rifle applications where rapid, repeatable follow-through is essential, this muzzle brake supports steady, suppressed-like performance without sacrificing velocity, making it a versatile choice for hunters and long-range shooters seeking dependable muzzle control and improved shot-to-shot consistency.