SMITH & WESSON M&P 9L-40 PRO Series Barrel 5" Telescopic Protection Type/Level: Level III+

Protection Type/Level: Level III+

55-GRAIN M193 BALL 7

The system includes three different external springs

the DPM Recoil System offers almost double force in the slide full open position compared with the factory OEM spring

Feel free to try any possible combination of washer and spring with your ammunition

SMITH & WESSON M&P 9L-40 PRO Series Barrel 5" Telescopic Protection Type/Level: Level III+DPM Mechanical Recoil Reduction System for M&P PRO & M2. 0 5 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 stronger and