I have hunted high and low to no avail, the best I have found is Promag 20rd for the USP. My question is will a USP mag work in a HK45 or am I S.O.L. And dreaming of high capacity?
The mags are not the same and so it wont work. Also the 20 rounders for the USP have mixed reviews, most of which are less then favorable.
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