HK P7 firing pin assembly...help!


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Paulus
October 19, 2007, 11:07 PM
Hi all,

Just got my first P7, a basically unfired Niedersachsen PSP from 1986. As I knew, it has a sweet balance in the hand, etc. and etc. I've always wanted one after shooting one a few years ago.

Anyway, after getting it today, I field stripped it (including taking the grip panels off), drenched it with CLP, delicately toweled it off and got it back together.

I then tried to disassemble the firing pin assembly and bushing. No go.

No matter what I do, the firing pin bushing will not rotate 90 degrees clockwise to release the assembly. So far, I've been quite polite: not forcing it, using a dime (which seems to fit in the slot perfectly) and repeated non-violent efforts.

The manual says that I should "depress cocking lever until the end of the firing pin is flush with the slot in the firing pin bushing." I did that (I think). Still no go.

The manual says, "push the firing pin busing (sic) with your thumb or a suitable coin all the way forward and rotate 90 degrees clockwise." Did that. Still no go.

What am I missing here?

I defer to your collective expertise.

Paulus

The manual

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BrainLazy
October 19, 2007, 11:21 PM
A coin doesn't work so well. The original P7's have flush firing pin bushings that are harder to turn with just your thumb or a coin than the capped ones used on the p7m8.
Normally, a tool was included with the P7 to remove the firing pin assembly, and while replacement combo carbon-scrapers/pin remover tools can sometimes be found on ebay, I've found that the 2 prong "keys" included with crap gun locks are excelent stand ins. (and you probably got one of these exact things with your trade-in P7)

If you have one (and didn't toss it the moment you opened the box) just line up the prongs with the bushing groove, push in, and then simply squeeze the cocking lever until you find you can rotate the bushing.

usp9
October 19, 2007, 11:23 PM
You should have a small tool with two prongs on it. The prongs fit in the rear of the bushing. After you squeeze the grip a little to move the firing pin back untill flush the bushing, you use the tool to turn the bushing 90 degrees right. This is done while the slide is on the frame. The older P7s need the tool, while the newer M8s do not.

Paulus
October 19, 2007, 11:28 PM
Wow, some great advice in minutes! I'm in awe of the THR!

Actually, the gun did come with what I thought was a cheap looking trigger lock with a 2 pronged "key." I left it at the dealer because I have much better quality trigger locks at home (I have kids).

I wonder whether I threw away a real HK tool? Or was it just a cheap trigger lock?

In any case, I'll find the right tool and report back to you. (Actually, a golf spike key might work...)

Thank,

Paulus

Paulus
October 19, 2007, 11:49 PM
Hey, OK! I'm in business. Used a golf spike tool to depress the firing pin bushing further in than I could with a thumb or a coin. It just rotated and fell out neatly.

What an amazing piece of engineering that firing pin assembly is. After a hose down of Eezox and drying off with a rag, it went back in fine.

Thanks for the tip, guys!

Off to the range tomorrow. Will give a fuller report soon.

Paulus

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