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Posted: 3/23/2024 2:46:44 PM EDT
Last year I bought a G45 MOS and decided I wanted a G19 MOS to carry instead. I bought a new G19 Gen 5 frame for $175 and am using it with the G45 MOS slide and instead of selling the G45 frame I figured I'd just get a G17 slide for it.

I've been seeing OEM G17 Gen3 slides for about $200, so besides the back plate, is there anything else that would prohibit be from running one on the G45 Gen 5 frame?

Thanks
Link Posted: 3/23/2024 7:29:10 PM EDT
[#1]
Link Posted: 3/23/2024 7:33:21 PM EDT
[#2]
The barrel.  17.3 barrels won't work on any Gen 5 guns.  You'll also have a gap between the dustcover and front of the slide.  There are fillers for that though.
Link Posted: 3/23/2024 7:56:46 PM EDT
[#3]
No, Gen 3 17 won’t work with Gen 5 19 frame. Barrel (locking block), recoil spring and slide stop are all issues.
Link Posted: 3/23/2024 10:05:35 PM EDT
[Last Edit: cspackler33] [#4]
You need a G47 slide. It is Gen5 and will have the shorter recoil guide rod to fit the frame of the G19/G45. I think it was invented for people to do exactly what you want to do.  Get a G47 and a G19 and you can switch slides to have long barrel/short grip and a short barrel/long grip (G45).
Link Posted: 3/24/2024 9:39:42 AM EDT
[#5]
No, as others have said, the barrel lockup is different between gen 3 and 5 17s.

That said, you could try with a gen 3 19 slide, or possibly trying using a gen 5 17 barrel with that gen 3 slide.

But, ehhh...
Link Posted: 3/24/2024 11:38:38 AM EDT
[#6]
Thanks for the input, I appreciate it. Pretty much what I was expecting.
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