SMITH & WESSON Sigma Series SW9E SW40 SW357

 DPM Mechanical Recoil Reduction System for Smith & Wesson Sigma Series 

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 has a heavier pound rating than the shorter spring.

Overall Advantages

• Faster follow up shots
• Improved firing speed
• Slide and frame protection
• Elimination of jams
• Significant recoil reduction
• Better double-tap concentration
• Better control and greater accuracy