Glock 20/40 availability?

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Bazzer429

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Has anyone come across any Glock 20’s or 40’s since the June 1st announcement? The only place i have seen a Glock 20 was at arms east. Can anyone confirm the compatibility of a Glock 40 gen 4 slide on Glock 21 gen 4 frame? Thanks
 
The lowers on all Gen4 Full-size Large Frame Glocks are identical to one another, just different Slides and Barrels for the 20, 21, 40 & 41. All internal components are the same as well like the Firing pin, recoil spring, extractor and ejector. Most of the 40's and some of the 41's came with the 3.5lb connector.
 
Saw a 20 sell from ArmsEast and 2 or 3 off exchange. Was watching pretty close from start of June. Didn’t see any 40’s at all.
 
scuba_cowboy said:
The lowers on all Gen4 Full-size Large Frame Glocks are identical to one another, just different Slides and Barrels for the 20, 21, 40 & 41. All internal components are the same as well like the Firing pin, recoil spring, extractor and ejector. Most of the 40's and some of the 41's came with the 3.5lb connector.
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Glock 40 lower is longer than the 20, you can’t mix and match slides between the two.
 
I recently sold my new unfired G20 and a G22 for 600.00 each: I had advertised on here in July with pics and no one wanted them, they were on here for 2 weeks ... the prices were a good deal for each. A buddy of mine had a buddy who ended up taking them both. Sold by word of mouth.
 
Butcherbill said:
Glock 40 lower is longer than the 20, you can’t mix and match slides between the two.
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I have worked on a Gen4 G21 (2012 production) a Gen4 G20 (2013 production) and a Gen4 G40 (2017 production) and the slides interchanged between all of them, the lowers were identical. If you want to put a G40 slide on a a Gen2/3- 20/21 frame, that would be a problem. All of the Gen4 Large frame Glocks share the same lower.
 
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scuba_cowboy said:
Funny, I have a Gen4 G21 (2012 production) a Gen4 G20 (2013 production) and a Gen4 G40 (2017 production) and the slides interchange between all of them, the lowers are identical. If you want to put a G40 slide on a a Gen2/3- 20/21 frame, that would be a problem. All of the Gen4 Large frame Glocks share the same lower.
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Sorry I have that mixed up I think, I tried to see if a G40 gen4 slide would fit on a G20 gen3 frame and as you said it wouldn’t work. Iirc the area where the recoil spring rides in the lower is different between the two but looking at pics of them the frames are the same length.
 
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