The Thunder Beast Arms Ultra 50 BSR Muzzle Brake (50BSR-NTB-1-14) is a precision-engineered brake designed specifically for .50 BMG rifles using the Big-SR (BSR) mounting system. Machined from high-strength steel and finished with Ionbond DLC for durability and corrosion resistance, it delivers substantial recoil reduction and serves as the mounting interface for the ULTRA50 suppressor. With its 1-14 thread pitch, it ensures secure fitment and repeatable accuracy for serious long-range shooters. Thunder Beast Arms Ultra 50 BSR Muzzle Brake 50BSR-NTB-1-14