The Arms Republic compensator utilizes a single top port design which maximizes the effectiveness of the compensator in reducing muzzle rise and resulting in faster and more accurate follow up shots.
Specifications:
Compatibility: FN 509 Compact
Caliber: 9mm
Material: 6061 T6 Aluminum
Thread Pitch: 1/2×28
Torque Set Screws to 5 inches to pound (Max)
Paul P. (verified owner) –
Very easy to do business with and product is outstanding. It looks and functions great on the 509.