I have 2 mags for my 4006, both factory, one is 10rnd other is 11rnd. The 10 works well. The 11 loads 11 rnds but when I go to put mag in the magwell it won't "click in". When it does go in slide moves and round not seated correctly. 10 rnds in this mag work perfectly. I hope I explainned this ok. What's is happening here?
Thanks,
Adam
ar33c9

Normal with most hi-caps and compact guns. The top round is being pushed down about 1/8" further down the tube when the slide is closed. This requires a firm slap to seat a loaded mag, if it isn't seated then the slide won't pick up the next round when it cycles. Since the 10rd mag is basically the same tube there's a little more room in it to make it easier to seat.

thanks for the explanation,
adam
ar33c9