Glock 21sf to 10mm

[NATEWA]

What are my options?

kkm
LoneWolf
Stormlake
Glock

From what I'm reading, I'll need a barrel, recoil spring, Glock 20 mag, and kkm recommends a little gunsmithing on the ejector?


What specific set up do you have that works?

Thanks

[dohc]

i use stormlake with 20 lb ss guide rod and mag

[rlewpolar]

Glock 21sf to 10mm

I went the easy route. Just buy the entire G20 upper and slap it onto your G21sf lower. Now you have both calibers that can go back and forth in 5 seconds


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[Carcassonne]

What are my options?

kkm
LoneWolf
Stormlake
Glock

From what I'm reading, I'll need a barrel, recoil spring, Glock 20 mag, and kkm recommends a little gunsmithing on the ejector?


What specific set up do you have that works?

Thanks

You can use a stock Glock G20 10mm barrel, but the rear tab on the barrel will be smaller than the mating recess in the slide. It will work, but the group size won't be as good as a properly fitting barrel. I think KKM and/or Stormlake are the only companies that make actual conversion barrels with the correct tab width.

The G20 and G21 use the same spring, but the G20 slide is heavier than the G21 slide. You might need a heavier spring to make up for the weight difference - especially if you shoot nuclear loads.

For more reliability, you should get a G20 extractor. The stock G21 extractor will work OK just the way it is.

You will need a 10mm magazine.

[NATEWA]

Thanks so much!

[NATEWA]

https://www.glocktalk.com/threads/converting-a-g21-to-10mm-vs-g20.1583893/

Looks like I need a g20 upper.

[NATEWA]

Uppers are $350-400.

For $135, I picked up a new LW barrel, stainless steel guide rod and 24 lb spring.

Will shoot 45 super for pig hunts.