Recoil Reducing Springs? DPM Systems in a Walther PPS

Published on May 9, 2016
Duration: 1:31

This video reviews the DPM Systems tunable recoil reducing operating spring and guide rod system for the Walther PPS. The system aims to progressively decelerate the slide, prevent frame slamming, and accelerate forward slide movement, resulting in reduced recoil and muzzle flip. Testing with two DPM springs (silver and bronze) and the factory spring indicated the silver spring offered a slight improvement in getting back on target quicker, though it was perceived as too stiff in some instances. The bronze spring was deemed too stiff overall. The reviewer suggests that with more break-in, the silver spring could be beneficial for competition shooters seeking a tenth-of-a-second advantage but noted it did not resolve issues with low-velocity rounds in the short-barreled pistol.

Quick Summary

The DPM Systems recoil reducing operating spring and guide rod system aims to decrease felt recoil and muzzle flip by progressively decelerating the slide. Testing on a Walther PPS showed the silver spring offered a slight advantage in target reacquisition, though it could be too stiff without adequate break-in. It does not resolve issues with low-velocity rounds.

Chapters

  1. 00:00Introduction to DPM Systems
  2. 00:11System Functionality
  3. 00:21Testing on Walther PPS
  4. 00:32Side-by-Side Comparison
  5. 00:44Silver Spring Performance
  6. 00:54Personal Experience
  7. 01:05Smoother Operation
  8. 01:14Competition Potential
  9. 01:22Limitations with Low Velocity Rounds

Frequently Asked Questions

What is the DPM Systems recoil reducing system?

The DPM Systems recoil reducing system is a tunable operating spring and guide rod assembly designed to progressively decelerate the firearm's slide after firing. This action aims to prevent the slide from slamming into the frame and then accelerate it forward, ultimately reducing felt recoil and muzzle flip.

How did the DPM springs perform on the Walther PPS?

In testing on a Walther PPS, the DPM silver spring showed a slight improvement in getting back on target quicker. However, both the silver and bronze springs were perceived as too stiff in some instances, with the bronze spring being generally too stiff for optimal performance.

Can the DPM Systems recoil reducer improve competition times?

The reviewer suggests that with sufficient break-in, the DPM silver spring might offer a competitive edge for shooters, potentially shaving off the tenth of a second needed to win. However, its effectiveness is dependent on proper tuning and break-in.

Does the DPM recoil reduction system fix all shooting issues?

No, the DPM system does not resolve all firearm performance issues. Specifically, it was noted that the system did not compensate for a short-barreled pistol's inability to generate sufficient energy with low-velocity ammunition.

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