I use the DPM recoil reduction spring on two 9 mm S&W M&P V1 competition pistols I built. The recoil effects are marginal.

 

I use the DPMS in my SIG P210T only because the SIG recoil spring assembly has been unavailable, costly ($70) and supposed to be replaced every 3,000 rounds.

The DPMS is available, costs about $125, and is good for 45,000 (that's not a typo) rounds. So, overall, it's a lot cheaper, unless you don't really shoot very much.

It works well in my P210, but I haven't really noticed that recoil is significantly reduced. But I have been shooting handguns for a long time and am not recoil sensitive. So your experience might be different.

 

I have a few and as LARSX states, reduction is marginal.

 

I used a DPMS in a Glock G30s and could tell no difference what so ever. Sam

 

The original manufacturer is the system that I use in my 1911's,S&W 3rd Gens & SIG P220's,226's,227's,228's,229's.

Sprinco USA -- Recoil Solutions

(DPM is plated spring/hardware store ...trash)

 

I'm not familiar with Sprinco. From their website their system appears very different from the DPMS. Which one is better is anyone's guess.

What I can say is that I've used the DPMS in my P210T for 4 years and find it a quality item. I've also recommended the DPMS to many other P210 owners on this forum who have purchased the system. I have not yet heard a single complaint.

You may prefer Sprinco, which is fine. But I would have to disagree with your "DPM is plated spring/hardware store ...trash" statement.

 

I love DPM Recoil reducing guide rod. I have one on all my pistols. 10mm, 45,9mm,357sig. It makes the double tap easier to control.