PISTON DRIVEN SYSTEM (PDS): A NEW GENERATION OF FIREARMS EMPLOYING RRA’S PATENT-PENDING PDS. WITH PURPOSE-DESIGNED BOLT CARRIER, ADJUSTABLE GAS PISTON AND OVER-THE-BARREL SPRING AND GUIDE ROAD ARRANGEMENT, THE RRA PISTON DRIVEN SYSTEM IS ABLE TO COMPLETELY DO AWAY WITH THE TRADITIONAL RECOIL SYSTEM. CALIBER: 5.56MM NATO CHAMBER FOR 5.56MM AND .223 CALIBER LOWER RECEIVER: FORGED …
