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5 round mag extension
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  1. HK ROOKIE CORNER
    Hello everyone! I just bought a VP9SK for my CCW. I then bought two 5 round magazine extensions from HK parts to put onto the two magazines that came with the gun. Obviously, I'm trying to make my two 10-round mags two 15-round mags. I swapped them out and I only get 2 extra rounds in one and 3...
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