Receiver rail guide.

[Sieger]

Originally Posted by 1969goatman

On shooter Lugers, this part of the frame sometimes breaks,is there anyway if you are going to shoot an old Luger to keep these two small parts intact? The two 1/16th inch parts that the receiver rides back on at recoil.

I think if I had it oiled really good this would not have happened?

Hi:

I've seen a number of these fins rather mutulated by what I call breach block slap. This is when the ammo being fired is so hot that it causes the breach block to slap the frame, right at that point.

As this is a chief cause for mechanical failure of a Luger, you might try lighter handloads if your reload. If not, watch the commercial ammo you are using is not NATO spec or +P.

Sieger