About the Recoil Reduction Spring Rod for Glock 20-21-21SF gens 1-3 by DPM Systems:
DPM Mechanical Recoil Reduction System for Glock 20-20SF-21-21SF Gens 1-3
The DPM Mechanical Recoil Kit is a direct replacement for the stock recoil rod and does not require any modification to the pistol.
National Tactical Officers Association Tested & Recommended.
The 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/hers personal standards.The long spring (more coils) is stronger and has a heavier pound rating than the shorter spring.
**As we lead the evolution of recoil reduction technology, products may change versions (new design with different springs, with or without plugs, washers, etc.) without any prior notice.**
Power Rates
Slide on the battery (idle position)
- Short Spring: 4.3 kgs / 9.47 lbs
- Long Spring: 4.5 kgs / 9.92 lbs
Slide full open position
- Total: 11.5 kgs / 25.3 lbs (approx.)
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
Will Fit: Glock 20-21-21SF gens 1-3
Glock 20-21-21SF gens 1-3 Recoil Spring Assembly Instructions


This recoil springs are a direct replacement for the stock recoil rod and does not change the configuration of the pistol.
*Dimensions of the spring are the same as the original.
DISCLAIMER:
This product is not manufactured, authorized, endorsed, or warranted by GLOCK. GLOCK does not warrant or represent that this product is compatible with GLOCK pistols.
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