breech block troubles-help!

[linus9]

i have a 1923 commercial luger that im having trouble with. the slot in the rear of the breech block that the firing pin spring retainer locks into has broken out the back. it wont hold the retainer in for more that a few shots. i had it repaired once by a gunsmith who heli arced it shut, but it only lasted a year of so before it broke out again.

is there a permanent repair for this, or do i need to buy a new breech block and have it fitted?

i regret trading in a nice shooting .30 luger for this dog. but i wanted one in 9mm. oh well, hindsight.

any help would be greatly appreciated.

mike