Erma 22LR magazine fit

ithacaartist · 05-31-2021, 05:31 PM

Geoff, I've encountered both under-size magazine wells and a variety of overall related dimensions on their mags. I did a check fit of all my KGP69 mags in all my KGP69 pistols. I came up with effectively Large, Medium, and Small in both categories, and paired the mags with the pistols they fit, marking SN of each gun on the mag(s) that fit it.

Don't modify that mag any further because it simply "belongs" in a KGP69 that happens to have one of the Medium of Large mag wells. The luck of the draw will eventually provide you with a mag that fits nicely, so buy some more and sell this one until you have some that work--which is what you want.

In the case of a mag that "allllll-most" fits, a 1/2" square file works great to carefully shave the rear of the mag well a bit. Keep watch of the subsequent raw metal so it doesn't corrode!

05-31-2021, 05:31 PM	#2
ithacaartist Twice a Lifer Lifetime Forum Patron Join Date: Mar 2011 Location: Atop the highest hill in Schuyler County NY Posts: 3,368 Thanks: 7,432 Thanked 2,611 Times in 1,378 Posts	Geoff, I've encountered both under-size magazine wells and a variety of overall related dimensions on their mags. I did a check fit of all my KGP69 mags in all my KGP69 pistols. I came up with effectively Large, Medium, and Small in both categories, and paired the mags with the pistols they fit, marking SN of each gun on the mag(s) that fit it. Don't modify that mag any further because it simply "belongs" in a KGP69 that happens to have one of the Medium of Large mag wells. The luck of the draw will eventually provide you with a mag that fits nicely, so buy some more and sell this one until you have some that work--which is what you want. In the case of a mag that "allllll-most" fits, a 1/2" square file works great to carefully shave the rear of the mag well a bit. Keep watch of the subsequent raw metal so it doesn't corrode! __________________ "... Liberty is the seed and soil, the air and light, the dew and rain of progress, love and joy."-- Robert Greene Ingersoll 1894