Shop › ARMASPEC ROOK MICRO COMPENSATOR ARMASPEC ROOK MICRO COMPENSATOR $44.99 Armaspec ROOK, Micro Barrel Mounted Compensator, Anodized Finish, Black ARM4511-BLK Quantity: Add To Cart Added! Armaspec ROOK, Micro Barrel Mounted Compensator, Anodized Finish, Black ARM4511-BLK