About the 1911 5″ Bushing 9 Adjust. Pistol Recoil Reduction Spring Rod by DPM Systems Upgrade your original 1911 5″ Bushing 9 Adjust. with the DPM Systems Recoil Reduction Spring Rod and experience a revolutionary recoil reduction. This guide rod/spring system has advanced shock absorption technology that decelerates the slide before it reaches the pistol’s frame, […]