Here are the problems with magazines:
1) Some people report problems using the 8-rounders in the CM9. The theory is that the backward pressure on the magazine - basically using it for an extended grip causes the problem. I've used the 8-rounder in my Kahr without any issues.
2) Some mags came from the factory with the spring loaded backwards. Loading the spring upside-down will cause malfunctions. Just check that your spring is right-side up.
3) This third issue is not really a problem with the magazine as it is an issue with the feed ramp extending a tiny bit too far. Some barrels had feed ramps that bumped right up against the follower and under recoil, the feed ramp would tap the plastic follower and break it. I had two followers break and the way they broke - the feed ramp basically knocked a semi-circle out of the follower but neither the magazine nor the gun experienced any malfunctions like FTF
1) Some people report problems using the 8-rounders in the CM9. The theory is that the backward pressure on the magazine - basically using it for an extended grip causes the problem. I've used the 8-rounder in my Kahr without any issues.
2) Some mags came from the factory with the spring loaded backwards. Loading the spring upside-down will cause malfunctions. Just check that your spring is right-side up.
3) This third issue is not really a problem with the magazine as it is an issue with the feed ramp extending a tiny bit too far. Some barrels had feed ramps that bumped right up against the follower and under recoil, the feed ramp would tap the plastic follower and break it. I had two followers break and the way they broke - the feed ramp basically knocked a semi-circle out of the follower but neither the magazine nor the gun experienced any malfunctions like FTF
