Works nicely with my PX-9 D comp. I just seems to protrude from the front a little, with that said I have not had any issues.

Purchase as a backup for my Gen3. Looks great and well made.

Good price fast service always good to have a backup guide rod and spring for the PX9 Duty

Bought it for my px9 3.5 well it don’t fit and it not specify so I guess my fault

Works well on model PX-9D when using low power rounds and light weight bullets 115gn or less . Great pricing and fast delivery from Tisas USA .

I make light load practice rounds of powder coated 9mm to shoot steel with and this spring works perfect in my px9 dutys. Would highly recommend

the recoil spring I got was a little different from the one that broke but fit well and works great and made much better than the old one

The standard spring on the PX-9 was giving me probles suppressed. I put this spring set in and wallah! We put 100 rounds down range without failure the day this came in. The pistol should have come this way with a threaded barrel, not with a heavier spring that will not allow it to function properly.

While initially skeptical, I ordered the recoil spring to see if it would fix the light primer strike issue with the Nightstalker. I would have light strikes every 5 to 10 rounds. I gave it a fair test today and did not have one light primer strike. I think SDS should have provided the fix for free as a remedy for a design deficiency, but I am glad they offered the assembly.