Neat glock conversion 45 to 10 mm

[ilbob]

Watched this video last night. Wonder how reliable it shoots. I wonder too if the higher pressure of the 10 mm is safe to shoot in this gun without a new recoil spring.

Shoot 10mm Ammo out of your .45ACP Glock | Conversion Barrel

This video is our last installment in the Conversion barrel series and it is a popular option! Versatility in what ammo you can shoot is one of the coolest a...

youtu.be

 

[Ohen Cepel]

Guys have been doing this for a long time now.

Not a glock expert but have some of them. Midway shows that the spring is the same for the 20 and 21;

Glock Factory Guide Rod Recoil Spring Assembly Glock 20, 21, 21SF

This Glock Factory Guide Rod and Recoil Spring Assembly is a factory original from Glock. Factory replacement parts are manufactured to the exact same...

www.midwayusa.com

So, I think you would be fine running the original one. Now, if going to hot/heavy 10mm I would step it up a few pounds.

I always found it interesting that their 20 (10mm) came out before their 45acp (21). I think that a good part of the reason their 10mm's held up back when that was a new chambering, they built it for the 10mm and then went 45. Many other manufacturers tried to simply convert a 45 over and some ran into issues with that path.

 

[TTv2]

Before I got a 10mm Glock I considered doing a .45 to 10mm conversion as I'd have two calibers in one pistol and the 10mm would use a thicker barrel with standard rifling for lead bullets, but I decided against it as I wasn't sure how many other parts I'd need to replace to make it reliable and I'm also not that interested in Glock .45's when there are many other options available for a .45 pistol.

Not so much with 10mm, the Glock is still the best 10mm for the money and has been for decades.

 

[wesmonster]

I've had a G21 and a G40, the .45 Glocks are strong enough for 10mm, just need the conversion barrel and 10mm mags.
And FYI, I've bent the feed lips on a gen 4 .45 mag and ran 10mm thru my g40 it reliably if you replace the .45 follower with a 10 mm follower.
All Glock gen 4 g20/21 pistols (10mm &.45) have 17lb recoil springs. Although for the really hot stuff like Underwood and Buffalo bore 10mm it's recommended to go heavier on the recoil spring.