Bought some kmags for my SV and they usually run flawlessly allowing me to start with 19 or at a stretch 20 in my 40cal StandardThe issue was that due to the manufacturer pushing the boundaries on tolerance to allow for larger capacity the rounds would some times jam beside each other in the mag tube. The most annoying part was I have tried to replicate the problem at club days and they run perfectly grrrr. Looking at now decreasing the internal spacing by a fraction so no two rounds can wedge together.
The craziest thing was there was three of us in my squad using kmags and we all had issues over the 3 days but never do at club level........
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