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VZ61 cans

JKH62

Joined: Nov 2004

Posts: 17171

EE: 100% (111)

OH, USA

Posted: 5/22/2026 11:11:15 AM EDT

Any drawings or pics of the factory barrel collet mount?

32 acp is a unique caliber and making a can has lots of options, the factory collet mount is what has my interest.

User55645

Joined: Jul 2008

Posts: 15388

EE: 100% (24)

CT, USA

Posted: 5/22/2026 7:19:20 PM EDT

[Last Edit: User55645][Edited] [#1]

Rear cap and collet

Here's a pic of an Er-20 collet being used

Here's a factory barrel with profiling

JKH62

Joined: Nov 2004

Posts: 17172

EE: 100% (111)

OH, USA

Posted: 5/22/2026 8:41:54 PM EDT

[#2]

Thank you sir.

That's exactly what I was looking for.

jreinke

Joined: Oct 2013

Posts: 644

EE: 0% (0)

WI, USA

Posted: 5/23/2026 10:50:50 AM EDT

[#3]

Is that your design with the ER Collet? Did you fabricate the collet closer nut or just buy one online?

JKH62

Joined: Nov 2004

Posts: 17176

EE: 100% (111)

OH, USA

Posted: 5/23/2026 10:53:14 AM EDT

[#4]

ER collets are nice , unless someone does not snap it into the nut before tightening.........

neuromancer1970

Joined: Oct 2012

Posts: 815

EE: 100% (25)

MO, USA

Posted: 6/1/2026 3:26:20 AM EDT

[#5]

That is crazy but they work on end mills. If you tighten them up right they ain’t comin off

Maybe ER 25 for a smaller closer nut?

jreinke

Joined: Oct 2013

Posts: 645

EE: 0% (0)

WI, USA

Posted: 6/1/2026 9:49:25 AM EDT

[#6]

I really like the ER20 collet mount, unfortunately can't fold the stock because the collet nut is 34mm (1.34") in diameter. I want to be able to fold the stock with the can mounted, so I went with the Soveriegn Developement extended tri-lug they make for the VZ61 with 7/16-28 threads.

https://www.sovereigndev.com/shop/tri-lug-adapter-face-mount-206?attrib=&attrib=13-35#attr=43,39

JKH62

Joined: Nov 2004

Posts: 17596

EE: 100% (111)

OH, USA

Posted: 7/26/2026 11:55:35 AM EDT

[#7]

What's the tube OD diameter and over all length on the factory VZ61 can ?

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