Safety Pin Hole Specs

[Chuckindenver]

you would think they would have done a nicer job of staking the hole, and used a special punch to do so, one that like the stake punch on a Carbine flip sight pin.
having the hole made over sized makes since, having it wear over size is a stretch..
the OP,s pistol is most likely done from a heavy handed bubba

Information

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[Scott Gahimer]

The original pistols I've seen with the holes closed-up under the finish were probably originally rejected and sent back to be repaired prior to shipping. Some of those pistols do not have any final inspection or Ordnance Acceptance marks, but have what are believed to be factory repair marks on top of the receivers. There is still more to learn about how many pistols may have been defective and how they were repaired.

Those original pistol repairs were neatly done with what appears to be specially made punches shaped to go around the edge of the hole. They don't looked all Bubbafied.