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rjrivero · September 24, 2012, 09:12 AM

Glock 40 mags and 357 sig mags are the same.

The Glock 9mm mags can be used in 40s and 357's. with the appropriate conversion barrel.

10mm and .45's mags are interchangeable with the appropriate barrel conversions in the large framed glocks.

September 24, 2012, 09:12 AM	#6
rjrivero Senior Member Join Date: November 17, 2008 Location: NW Ohio Posts: 1,399	Glock 40 mags and 357 sig mags are the same. The Glock 9mm mags can be used in 40s and 357's. with the appropriate conversion barrel. 10mm and .45's mags are interchangeable with the appropriate barrel conversions in the large framed glocks.