DPM Recoil Springs for 2011 OPEN 5" Bull Barrel

The DPM Mechanical Recoil Reduction System for the 2011 Open 5" Bull Barrel is a direct replacement for the stock recoil rod, requiring no modifications to the pistol. This system incorporates a multi-spring intricate rod (three springs) designed to optimize the functionality of the pistol, with the third spring controlling the movement of the slide to prevent slamming into the frame.

Unique Features:

• Multi-spring intricate rod (three springs) controls recoil, providing smoother operation.
• Includes three different length spacers to adjust buffer effect: long spacers for heavier buffers, and shorter spacers for lighter buffers.
• Comes with a spring plug, red pressure plate tool, metallic cup screw tool, and three external springs of varying lengths.
• The long spring is heavier, and the short spring is lighter, allowing shooters to fine-tune the pistol’s recoil based on personal preferences and the slide’s opening and locking positions.

Power Rates:

• Short Spacer:

  • Slide on the battery (idle position):
    • Short Spring: 5.0 lbs
    • Medium Spring: 5.51 lbs
    • Long Spring: 6.39 lbs
  • Slide in full open position (approx.):
    • Short Spring: 13 lbs
    • Medium Spring: 13 lbs
    • Long Spring: 13 lbs

• Medium Spacer:

  • Slide on the battery (idle position):
    • Short Spring: 5.29 lbs
    • Medium Spring: 5.84 lbs
    • Long Spring: 6.5 lbs
  • Slide in full open position (approx.):
    • Short Spring: 17 lbs
    • Medium Spring: 17 lbs
    • Long Spring: 17 lbs

• Long Spacer:

  • Slide on the battery (idle position):
    • Short Spring: 5.51 lbs
    • Medium Spring: 6.06 lbs
    • Long Spring: 6.60 lbs
  • Slide in full open position (approx.):
    • Short Spring: 20 lbs
    • Medium Spring: 20 lbs
    • Long Spring: 20 lbs

Included in the Box:

• 3 External Springs (different lengths and weights)
• 3 Different Length Spacers (short, medium, long)
• Spring Plug
• Red Pressure Plate Tool
• Metallic Cup Screw Tool