Soft strikes with PPS-43 -- Looking for a compatible replacement pin


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9mm+
October 10, 2013, 06:23 PM
I took the PPS-43 (technically a pistol by BATFE) to the range today with some new S&B 7.62x25 rounds to break the gun in. About 1 in 5 of the rounds had insufficient striking from the firing pin which didn't ignite the primer. I examined the primers and saw that the pin strikes were quite light and then took the bolt out to examine the pin action.

When the stiker pin is fully depressed, the firing pin doesn't extend enough to consistently ignite these primers (which on most 7.62x25 rounds are pretty hard to begin with). The original PPS-43's were open bolt submachine guns, so the early modified semi BCG's didn't always have sufficient firing pins to light the primers.

I've ordered a parts kit for the PPS-43 which includes a complete BCG and hopefully this later version will have a better FP, but I can't seem to find just the firing pin to replace the original. Does anyone know a compatible firing pin that would fit the PPS-43? Any help would be greatly appreciated...thanks!

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9mm+
October 10, 2013, 07:59 PM
Damn, just learned that the BCG in the parts kit is for the original open bolt design, so that's not going to work... :(

If anyone knows a compatible firing pin (perhaps from an AR), please let me know. Just need one that is a tad bit longer.

9mm+
October 11, 2013, 03:32 PM
Looks like the answer maybe no? I will contact Royal Tiger to see if I can get a replacement pin from them, but please respond to this post or send me a PM if you know of a comparable firing pin from another gun that would fit the PPS-43. Thanks!

kneesus
October 12, 2013, 09:11 AM
Get one machined, but I would check the spring as well as if there's any crud or protrusions keeping the pin from fully extending.

9mm+
October 12, 2013, 11:21 AM
Get one machined, but I would check the spring as well as if there's any crud or protrusions keeping the pin from fully extending.

Thanks, that is the route I'm going to take. I've pulled the FP and checked the springs on both the striker and firing pins, and everything seems very clean and operable. It's just that the FP doesn't extend far enough past the bolt face to consistently ignite these very hard 7.62x25 primers. Machining a new one is probably the only real solution. Apparently, the AR15 DPMS pins are similar to these PPS43 ones, so I've ordered a few and will have a gunsmith machine it to what it needs to be.

Anxious to get the PPS43 back in operation. It's a great shooter (when it fires :) ), and a helluva lot of fun on the range.

goon
October 12, 2013, 03:13 PM
There is the custom machining route.
Without seeing one, I can't say if this would work, but...

One time my brother's WASR-10 broke the firing pin. No explanation - it just broke during use. My dad found a bolt the right size to fit, took it out to the garage, and made it into an AK firing pin with an old post vise and a file. It worked perfectly until my brother could afford a replacement.

So making a firing pin isn't rocket science - just takes some patience and work. If you've got some tools you could probably use the old one as a pattern and make a new one yourself.

9mm+
October 12, 2013, 05:42 PM
There is the custom machining route.
Without seeing one, I can't say if this would work, but...

One time my brother's WASR-10 broke the firing pin. No explanation - it just broke during use. My dad found a bolt the right size to fit, took it out to the garage, and made it into an AK firing pin with an old post vise and a file. It worked perfectly until my brother could afford a replacement.

So making a firing pin isn't rocket science - just takes some patience and work. If you've got some tools you could probably use the old one as a pattern and make a new one yourself.
Good advice and I will likely just fashion my own from the AR FP's I've ordered. With the Dremel, I will use the original FP (not broken, but just not long enough) as the template. I've done a lot of my own gun mods and repairs, so this is probably as effective and a helluva lot cheaper than taking the pins to a gunsmith. The wait times for gunsmiths in our area ranges from weeks to months for even the simplest stuff. Just not enough of them to go around.

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