Nice. It's too bad they don't make one in 9mm w/ 30 round mags. I'd buy it.
And what does it take to make the USC take the 25 round UMP mags?
You have to have an UMP lower, and have the upper milled for the wider magazine. I thought about it but it's as much as the cost of the gun and there is zero availability of UMP mags.
I instead bought some Pro-mag 20's, which have worked flawless.
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