Overpriced trash - DPM SIG Sauer P320 Compact Carry 3.9in Barrel Mechanical Recoil Reduction System

Overpriced trash. If you plan on using this with a micro comp or PMM duty comp, do yourself a favor and use stock spring. It works fine and is way more reliable. The 3.9 barrel does not need all these unreliable pieces.

I personally use the DPM spring with an Ultra Comp on a sub compact barrel. It proves to be useful on that set up with different grains of ammo, plus the intricate set up of a short traveling slide that needs proper cycling. I have two of those and they work great. This however is definitely not reliable and will give you issues.

I can assure you, on a compact/carry, stick with stock weight and avoid multiple weak unrigid springs that will coil under duress and get caught...its crazy but these springs are too flimsy for longer slides. That can't hold their shape.
Sub compact is good, carry os too long. I wouldnt even dare mess with the full size with this cheap Greek manufacturing