Worn Recoil Spring?

[pj150]

I'm pretty sure this is the problem but wanted to throw this out there to you guys.

New to me HK USP- runs fine but I can 'feel' the slide returning into battery as if you were to disengage the slide from a locked back position after firing a round. All the semi's I had fired prior to this, I could not feel the slide going into battery. All I would feel is the recoil and ready to shoot again. It's as if I needed to wait that split second for it to return before I pressed the trigger.

Since I have no clue on how many rds have been through this pistol with the current spring, I imagine that this is got to be it. I don't believe this is inherit in HKs or is it?

Other than that I can see why there are so many HK fanboys. Felt great and shot very accurately! Surprisingly so.

 

[bfm]

Replace it. I do that with any used pistol I buy. Just easier to have the peace of mind. I replace recoil spring in pistols I am running between 4 and 5 K rounds.

I would also carefully examine slide and frame rails jut to see if there are and burrs or odd wear marks.

 

[Gammon]

Spring MFRs recommend replacement after about 3k rounds. I tend to to run them a lot longer but there is no harm in replacing them sooner. Cheap insurance.

 

[92G]

OP-

as you likely know, the HK USP series has a dual stage "recoil reducing" guide rod. the HK guide rod is rather expensive but they do sell them on HKparts.net.

in general the USP guide rods/springs are believed to have exceptionally long life. if the gun is new and you're noticing issues w returning to battery, violent extraction or higher than normal recoil (all of which are consistent w underpowered recoil spring), then i would consider replacing it.

a few questions:

what chambering is your USP?
what is round count if known?
how old are your mags? are mag springs OK?

 

[jkelly1229]

Lube the crap out of it my beretta was doing that last winter when I was using dry lube. Oil the ever living bejesus out of it and see if you still have your problem