Cool! It's a hard part to find, or at least was in the pre-internet days. Back in the 1980's I had an otherwise pristine German production CZ-27 with a broken mag catch that someone had tried to silver solder back together, and I looked everywhere for a replacement without success until I found one in a parts box on a table at the old Great Western Gun Show here in California...as I recall, it cost me $25, while the pistol itself has only cost me $125.