The Ruger-57...as in 5.7x28!

[Ronin]

I'd like to give the TCM a try. My issue us, and it's sunday sacrilege confession time, I'm not a fan of the 1911 platform.

Do you own a Glock? Or a Tanfoglio Witness? If so, just get a 22TCM9R conversion barrel. Cheapest way to get into 22TCM9R.

[cruzans]

22 tcm is a hoot to shoot! I have the Rock Island and it's a blast. I did not know they made a conversion for a Glock - very interesting......

[buxbandit]

Do you own a Glock? Or a Tanfoglio Witness? If so, just get a 22TCM9R conversion barrel. Cheapest way to get into 22TCM9R.

I've been looking for one online, it appears to be discontinued.
I'd actually like to get one and dedicate it to a G17 with a Roni kit.

[cruzans]

Looks like they've been out a while - I was clueless. I see posts on 22 tcm sight dating back to 2015!
Still plenty of conversion barrels out there on GB and Ammo too. Still seems neat to have a Glock 17 shooting 22 tcm. Just hate that I would now have 22 tcm ammo for my
Rock Island and 22 tcm 9r ammo for my Glock And you're right, I have a Roni for my 17 so doubly cool !

I've been looking for one online, it appears to be discontinued.
I'd actually like to get one and dedicate it to a G17 with a Roni kit.

[Ronin]

I've been looking for one online, it appears to be discontinued.
I'd actually like to get one and dedicate it to a G17 with a Roni kit.

Not discontinued. Links in post #36 of this thread to the G19 barrel.

Advanced Tactical has the G17/22, G19/23 and Witness conversion kits for 22TCM9R.

https://advancedtactical.com/index.p...sion-kits.html

[Ronin]

Looks like they've been out a while - I was clueless. I see posts on 22 tcm sight dating back to 2015!
Still plenty of conversion barrels out there on GB and Ammo too. Still seems neat to have a Glock 17 shooting 22 tcm. Just hate that I would now have 22 tcm ammo for my
Rock Island and 22 tcm 9r ammo for my Glock And you're right, I have a Roni for my 17 so doubly cool !

You can shoot 22TCM9R out of any handgun that shoots 22TCM, so no need to stock both. 22TCM9R is slightly shorter to accommodate a standard 9mm magazine. The mags used for the 22TCM 1911's are .38 super because of the greater length.

[USMC3531]

Ammo supply warehouse has conversion kits too. https://www.ammosupplywarehouse.com/...ducts_id=21866

[buxbandit]

I ordered the conversion kit and the roni, looking forward to getting this together!

[Pete D.]

22TCM9R is slightly shorter to accommodate a standard 9mm magazine. The mags used for the 22TCM 1911's are .38 super because of the greater length.

How does the different length affect headspace?

[Ronin]

How does the different length affect headspace?

The case is the same. The bullet in 22TCM9R is 1gr less (39gr) than the 22TCM (40gr), making the overall length shorter. I believe the 22TCM9R bullet is seated deeper than the 22TCM.

rock-22-island-armory-tcm-conversion-7-527x1024.jpg

If you want to get into the weeds, there's 5.56x24, which is a 22TCM case necked down to take .224 bullets, but made a short enough OAL so that it fits into a standard 9mm mag and will function out of any 22TCM9R handgun.