The American Precision Arms Gen 4 Fat Bastard Self Timing Stainless muzzle brake delivers the flattest shooting performance with its calibrated U.R.P tunable top ports, designed for maximum adjustment and zero vertical movement, making it a standout choice for rifle enthusiasts seeking consistent, recoil-reducing performance. Built in stainless with a precise 5/8"-24 thread pattern, this brake measures 3.30 inches in overall length and 1.10 inches in diameter, weighing in as a compact yet impactful addition to your rifle setup. The Gen 4 Fat Bastard leverages carefully tested port size and location to optimize gas flow into the top ports, providing predictable muzzle rise control without compromising on brake efficiency, so you can maintain faster follow-up shots and steadier aim across varied calibers up to 30 Cal. When installed on compatible rifles, this device pairs a robust stainless construction with reliable self-timing geometry, ensuring consistent alignment and performance with each shot. AMERICAN PRECISION ARMS continues to deliver top-tier muzzle devices that combine advanced tuning potential with practical, field-ready reliability for serious shooters and hunters alike.