Toba barrel in a USP Compact
 

Will a Koba twist barrel designed for a KSC Glock be compatable with a KSC USP Compact?

Unfortunately not. The barrels are way too different, you'd have to modify the glock barrel a lot to get it to work in side a USP outer barrel. I just took apart my G19 and USP compact and checked, so guess we'll just have to wait until Koba makes a USP twist barrel.

Hmm, how much? I'd be willing to make this a project.