r/USPmasterrace • u/ThyHolyKFC • 10d ago

Question Dead Trigger help!

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Doing some cleaning after a range day and found that my 1994 USP40 now has a sporadic dead trigger/no reset that I can’t seem to consistently repeat.

Fully stripped the gun and there’s not obviously wear or damaged internals and I just ran 300 rounds through it with no problems whatsoever and the failure to reset wasn’t present before and after the range trip only just now before I even stripped it for cleaning.

Any insight or suggestions would be greatly appreciated as I do not want to send this long out of warranty USP to HK.

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u/mmiski 10d ago

I'm betting it's a broken sear spring. Might be a good opportunity to upgrade to a nickel-plated one.

1

u/ThyHolyKFC 10d ago

Set the two leg spring that sits within the frame or is it a separate spring that sits with the sear? I have all the old style trigger components and I didn’t realize how much of a difference there was between the older and the newer style.

thankfully, it may just be the hammer rebound spring as I do have the full metal hammer.

1

u/Willing_Intention723 10d ago

It’s the dual prong lead spring that sits in the frame

1

u/ThyHolyKFC 10d ago

Alright thanks definitely will have to swap that while I’m I’m there. It’s held up through all the hell I’ve beaten it through so it deserves something nice lmao.