SMITH & WESSON M&P 45 Barrel 4" .45ACP glockrecoilspringsupgrade When a handgun contains a

When a handgun contains a magazine with the DPM floorplate with the incorporated carbide tip

If a lube runs out and makes a mess

The user interface is intuitive

The long spring is heavy and the short is light so the shooter can fine-tune the pistol on the opening and locking positions (slide on the battery) according to his/hers personal standards

SMITH & WESSON M&P 45 Barrel 4" .45ACP glockrecoilspringsupgrade When a handgun contains aDPM Mechanical Recoil Reduction System for Smith & Wesson M&P 45 4 Barrel This system works due to the multi spring intricate rod (3 springs) and controls the functionality of the gun. The third spring, which is contained within the rod, controls the movement of the slide so it never rams on the frame. Included with the system are 2 separate springs so the user can fine tune the weapon for his her personal standards. The longer spring (more coils) is