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About 5-6 years ago I was taking a class at Firearms Academy of Seattle with a G19 and a mixture of 15 and 17 round magazines. One of the students near me stopped me before the next relay to inform me that my magazine wasn't fully seated and was going to fall out; I guess he'd never heard of or seen anyone use 17 round magazines in a 15 round gun. Like breakingtime91 said, G17 mags are easier to reload; they're a little easier to grasp out of a mag pouch and I don't ever pinch my hand when I slam it home like I do occasionally with the G19 mags.
I've never had a functional problem shooting a 17 magazine in a 19.
When shooting, I sometimes spot the longer magazine in my peripheral vision. Because I don't use the 17 magazines all the time, I sometimes have a brief moment of thinking the magazine may not be fully inserted, as philpac33 noted. It's funny how something that doesn't "look right" can catch one's attention.
I only carry G17 mags as reloads for all my Glocks. 17, 19, and 26.
Just a heads up, if you google this issue, or search some other gun related boards, you'll find a particular internet-famous instructor who will insist your G19 will choke if you put at a G17 mag in it, and if you dare argue with him, will insult your manhood and maybe even challenge you to a duel.
He's full of shite though.
I was into 10mm Auto before it sold out and went mainstream, but these days I'm here for the revolver and epidemiology information.
I agree completely with Voodoo on this. Away from work, I carry a Gen 3 -19 and my reload is a 21rd Magpul magazine. At work, I carry a Gen 4 -17 and my reloads are all 21rd Magpul mags.
eta: Away from work, my reload rides in my off-side front pocket in a DeSantis pocket mag pouch.
Last edited by Erick Gelhaus; 07-13-2017 at 01:42 AM.
Koy
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Last edited by Nephrology; 07-13-2017 at 08:03 AM.
I have a few 17 and 21 round Magpul mags and like them. I have enough rounds through the 17rnd to trust it but haven't gotten to that point with the 21 yet.
My EDC reload is in a pocket so a 17rnd works well for my office NPE. Otherwise out and about carry the reload is on the belt and is a G17+2. Hoping the 21rnd Magpul will eventually take over in that role.