Gen5 Slide on Gen4 Frame?

[epault]

Will a gen5 slide, small parts, gen4 barrel, gen4 spring, and guide rod work on a gen4 frame, trigger assembly, and locking block?  

[cheers623]

It will not. Starting with the Gen 5 guns, Glock changed the locking block design slightly. I tried this with a gen 4 and gen 5 model 34s that I had. Couldn’t swap. Hope this helps. 

[dee loo]

It will work on a g19 or smaller if you change the backplate to a gen 3\4 version.   Yes, the gen 5 fullsize guns now use 19 style locking block.   

[epault]

So if I use a gen4 barrel in the gen5 slide it won't work?  The gen4 barrel should work with the gen4 locking block.  

[dee loo]

It will work.  The Gen 4 19 barrel will work in a gen 5 19 and vice versa.  The locking blocks have the same locking geometry, but slightly different holes and external dimensions.  The external barrel dimensions are the same.   The newer gen5 chamber is a little shorter and tighter than previous generations with a different rifling.  They are supposed to be more accurate overall, but i haven't tested.   I have a gen5 barrel running in a gen3 parts gun.

[dee loo]

Sorry I forgot your question is for the 34.   You're correct for the g34/17 between gen 4 and gen 5.      You can put your gen 5 g34 barrel in any generation 19. 

[epault]

Tis is for a G17 G4 frame and a G17 G5 slide.

 

G4:

Frame

Locking block

Guide rod

Barrel

trigger assembly 

Frame small parts

 

G5

Slide

Slide small parts

[dee loo]

I see what you're doing.  It might just work.  If you have the parts in hand try it.   Google Suarez international g34 gen 5 slide, they have it interchangeable with gen4.   Maybe give them a call. https://suarezinternational.com/gen-5-slides-2/