A few years ago I pick up a used USP 45 from my local gun shop. This has been a very good pistol and one of my favorites. I have easily put 750 down the pipe and I have no idea of the round count prior. After my last range trip I was going through my cleaning routine and noticed the hammer all of the sudden would not lock back with any consistency. After some further manipulation one of two tangs on the sear spring had fallen through my mag well. I have since replaced the sear spring and the pistol seems to work fine, but I am curious if there is a"root cause" I should be looking for. Thanks ins advance for any insight.
Sidearms & Scatterguns HK USP 45 2007 date code sear issue
- Thread starter Aces&Eights
- Start date
Re: HK USP 45 2007 date code sear issue
No clue other than: defective, abuse, extremely worn out.
Never had to replace any of mine (I have nine USP's) and all have a buch of round through them.
No clue other than: defective, abuse, extremely worn out.
Never had to replace any of mine (I have nine USP's) and all have a buch of round through them.
Re: HK USP 45 2007 date code sear issue
Slightly off topic.
On the note of used pistols, (HK or otherwise) I have found that not knowing the history of the pistol, extensively that is, makes it difficult to know the when or why a failure is happening. I have a USP .40 V1 (old 5 digit serial) that I picked up used, unknown round count. Had it for at least 4 years before, without warning, the locking lug on the guide rod sheared off. I put a couple thousand rounds through it myself, no clue how many were done prior, could have been a hundred more on what I did, or it could have been 10k rounds more. But when it comes to used, its buyer beware. No other issues, replaced the guide rod, GTG, and that was over 5 years and probably another 2k rounds ago.
Slightly off topic.
On the note of used pistols, (HK or otherwise) I have found that not knowing the history of the pistol, extensively that is, makes it difficult to know the when or why a failure is happening. I have a USP .40 V1 (old 5 digit serial) that I picked up used, unknown round count. Had it for at least 4 years before, without warning, the locking lug on the guide rod sheared off. I put a couple thousand rounds through it myself, no clue how many were done prior, could have been a hundred more on what I did, or it could have been 10k rounds more. But when it comes to used, its buyer beware. No other issues, replaced the guide rod, GTG, and that was over 5 years and probably another 2k rounds ago.
Re: HK USP 45 2007 date code sear issue
Good deal, I did look pretty extensively at all of the other moving parts...since every last one had to come out to replace the sear spring. I definitely did not see anything out of the ordinary. It may be worth mentioning that I am a firm believer in dry firing to practice trigger control (not looking to insight debate)
Good deal, I did look pretty extensively at all of the other moving parts...since every last one had to come out to replace the sear spring. I definitely did not see anything out of the ordinary. It may be worth mentioning that I am a firm believer in dry firing to practice trigger control (not looking to insight debate)
