HK firing pin PITA

meat,

Calm down. You say you did your research, what did your research lead you to believe? If you only bought firearms based on which ones got ONLY good reviews and had no problems, you wouldn't own ANY.

blades67
These problems are why I buy SIG Sauer.
Click to expand...

Seriously now, you expect us to believe all SIGs are trouble free?

:rolleyes: :rolleyes:

Shake
 
ok....

Sorry for spasing out. I was just so frustrated after spending SOOOO much time researching. I'll hang w/ it and see what happens. And in response to blades67, the reason I didn't get a Sig is becuse my friends frame cracked on his 220. I like the gun and it shoots great. I just didn't want to plan on using the warranty anytime soon. Hopefully I won't w/ the USP45. But like I said before, all machines/tools are man made and therefor flawed.....
 
Here's how to disassemble the firing pin assembly in a USP (I think I got these instructions from HKPro a while back); not as easy as a 1911, but not a problem if you take your time. I now do this every thousand rounds or so for a detailed cleaning:

1. Make sure gun is unloaded.
2. Field strip gun
3. Take note of the orientation of the firing pin block (the thing with the quarter-pie shape visible on the underside of the slide) and of the firing pin (note the flat side at the rear end)
3. Tap out rear roll pin from the top of the slide to the interior.
4. Firing pin will shift rearward about 1/4" and permit removal of the firing pin block and the coil spring captured beneath.
5. Remove and clean firing pin and firing pin spring, as well as the channel. I like using non-chorinated brake cleaner here. Don't lube the firing pin, spring or channel as it will gum up the works.
6. With the slide upside down so that the underside is facing up, the rear end of the slide toward you, and muzzle end extending away, ensure that the firing pin is properly oriented (flat side to your left). You will be able to see into the firing pin block bore that the cutout on the pin is oriented to make the bore clear.
7. Insert the firing pin block spring, followed by the firing pin block in proper orientation. The block will be oriented with quadrant extending to the right and toward you.
8. Slightly insert the roll pin into its hole from the underside that faces you.
9. Now comes the only tricky part. With your left index fingernail, fully depress the firing pin block.
10. With your right little finger, press the firing pin fully into the firing pin bore so that the pin rear end is about flush (watch the orientation.) If you release your pressure on one or both pins too soon, the block will tend to rotate the firing pin out of position, requiring you re-set the positions.
11. Nudge the roll pin in as much as you comfortably can with your left middle fingernail.
12. Release pressure from pins (check orientation).
13. Tap pin home (not too far).
14. Reassemble gun.
 
Another comment... notice that the pins are roll pins. If you use a normal pin punch, you run the risk of having a portion of the pin fold over in the middle. Roll pin punches have a small, raised portion of the tip that fits in the hole to support the sides of the pin and prevent them from collapsing inward.

Just an FYU...
 
word of advice

if you are going to install it yourself make sure you get new roll pins, as they tend to be a use once item. If you re-use them you run the chance on them backing out.
i also broke the firing pin on my usp compact. hk took care of it though.
cheers,
Derek
 
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