About the Glock 17-22-31-34-35-37 GEN 4 Recoil Reduction Spring Rod by DPM Systems:
DPM Mechanical Recoil Reduction System for Glock 17-22-31-34-35-37 Gen 4 – NEW VERSION 2025
- 10 Adjustable User Settings!
- Stainless Steel (Black Oxide) Self-lock Spring Plug!
- Capable to serve factory and modified pistols!
The Advanced Unique Recoil Reduction System offers 10 Adjustable User Settings. The 3 Different in Power Buffer springs and the 3 Different (in power too) External Springs can serve the majority of the ammo. In Addition, the System is designed to serve factory and modified pistols.
National Tactical Officers Association Tested & Recommended.
This DPM System works with 3 different buffer recoil springs which each one offers different spring force (Forces are listed at the end of the description).
The kit includes 3 different in length external springs, 3 buffer springs and 1 self-lock spring plug.
IMPORTANT:
The Self-lock spring plug must always be installed when the DPM kit is used.
**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)
- External Spring 1: 3.7 kgs / 8 lbs
- External Spring 2 : 4 kgs / 9 lbs
- External Spring 3: 4.4 kgs / 10 lbs
Slide full open position
- Buffer Spring 1: 8 kgs / 17 lbs (approx.)
- Buffer Spring 2: 9 kgs / 20 lbs (approx.)
- Buffer Spring 3: 10 kgs / 22 lbs (approx.)
For super soft ammo, comps and similar modifications, the user must not install any buffer spring.
In this case the system will offer in full open position 5.5 kgs / 12 lbs total power.
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
Glock Glock 37 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.
“GLOCK” is a federally registered trademark of GLOCK, Inc. and is one of many trademarks registered by GLOCK, Inc. and GLOCK Ges.m.b.H. Neither Zahal.org nor this site are affiliated in any manner with, or otherwise endorsed by, GLOCK, Inc. or GLOCK Ges.m.b.H. The use of “GLOCK” on this page is merely to advertise the sale of GLOCK pistols, parts, components or accessories. For additional genuine GLOCK, Inc. and GLOCK Ges.m.b.H. products and parts visit www.glock.com.


















