The Unofficial P64 Resource Forum

Don't go over 95 grain bullets in the P64.

It goes on the hammer pin between the hammer and spring.

See http://p64resource.com/board/P64_Parts_List.pdf

The hammer spring is also the spring that holds the magazine catch. May be too light.

You also have to learn to really hold the grip when you fire. What you are experiencing is double tapping the trigger as the pistol recoils.

They made the change in the 71/72 production year so you may have a late 71. My 71 has a round hammer.

There is also a thread about polishing the safety to make it work better.

Another area that you may want to polish is the frame where the trigger connection slides and where the trigger connection slides along the hammer spring pin (upper end).

I was having trouble getting my slide to lock in place when I noticed that the trigger pivet pin had rotated out of its slot and was casuing the slide to bind. Check that pivit pin!

The 11 is the factory symbol for made in Poland.

So which ones are the aftermarket ones and why do some Pre-1969s only work with the short feed lengths while the post 1969 will work with both styles? You cannot use a long feed length magazine in a pre-1969!

Try turning the recoil spring a little. It seems to fall into a flatter position on the frame.

Did you install a new recoil spring? If yes, that is the problem with the slide. You have to grind down the two ends of the new recoil spring so that it looks like the original.

So pre 1969 models use the short feed lips only?

These are all original just two different feeder lenghts!

I know that there are at least two different styles of magazines. Does anyone know what year they started using the longer feed length? In addition to the feed length I had two versions of the short mags. One had a solid follower and the other a skeleton version. I have a 1971 and would like to conf...