The PFR-15 Modern MK12 Reaper Upper Receiver chambered in 6mm ARC is a collaboration between American Animal Arms and Craddock Precision, combining purpose-built engineering with premium components to create a rifle equally suited for precision shooting, field use, and suppressed performance.
At the heart of the system is Craddock Precision's 18" match-grade MK12 Reaper barrel. Featuring our proprietary Reaper Contour, this barrel was designed to maximize the performance of the 6mm ARC cartridge by providing exceptional consistency, rigidity, and long-range capability while maintaining excellent balance. Finished with 5/8x24 muzzle threads, the barrel accepts virtually any Type A suppressor or muzzle device, allowing shooters the flexibility to configure the rifle around their preferred suppressor system.
The 18" MK12 Reaper barrel utilizes a proven rifle-length gas system, providing a smooth recoil impulse and dependable cycling across a wide range of ammunition. This time-tested configuration complements the 6mm ARC cartridge exceptionally well, delivering reliable performance whether shooting from the bench, in the field, or with a suppressor.
The upper is equipped with the 12.3125" American Animal Arms Lights Out Rail, engineered for today's shooter. The integrated SLIC™ Cable Management System protects weapon light and laser cables while offering clean routing solutions and dedicated 45-degree accessory mounting positions. Anti-rotation tabs, a stainless steel barrel nut, two M-LOK rail covers, and two cable management covers come standard.
Completing the package is a premium DLC-coated Bolt Carrier Group, featuring a concentrically ground carrier and our twice-straightened firing pin for exceptional consistency and durability. Charging duties are handled by the Sentry Manufacturing DEADLOCK™ Charging Handle, helping reduce gas blowback and improve shooter comfort during suppressed fire.
Every component of the PFR-15 Modern MK12 Reaper Upper Receiver was selected with performance in mind. From the precision-built Craddock Precision barrel to the innovative American Animal Arms handguard, this collaboration delivers a refined shooting experience built for those who demand accuracy, reliability, and uncompromising quality.
