Glock 31 conversion question

[JRWhit]

with a 31 glock chambered .357 sig. Can you convert to 10mm by using only the 4.6 in. 10mm barrel? Unless I'm mistaken the brass is the same diameter. Would the magazine be able to hold the longer length of the 10mm?
The barrel offered in 10mm is labeled as a lengthened barrel for a m/29. Would that even cross to the 31 gen4? The barrel is a Lone Wolf.

 

[NG VI]

The frame and slide are different for the 10mm versions, though the 20 and 29 can readily be converted to .40 and .357 with just a barrel. Since 10mm is the parent cartridge, the breechface, ejector, and extractor are a perfect match for the shorter cartridges, and the magazines work fine as well.

 

[JRWhit]

perfect, thank you. I suppose I'll go to the 20 instead then. Would the 10mm frame and slide also work with the 9x25?

 

[918v]

Yes.

 

[JRWhit]

Much Thanks