My MP9c had the magazine disconnect and when I did the Apex duty kit I could not get the trigger bar timed very well. I was getting light strikes with Fiocchi 115gr which apparently is relatively common. I cleaned the striker and striker channel. I replaced the rear sear housing with one that lacks the magazine disconnect. The timing issue seems resolved. I also bought a Storm lake barrel for it as Optics planet had a sale on them.
Off to the range I went. I was shooting at 7 yards indoors offhand. This time I had one light strike and the primer was clearly dented with Fiocchi 115. I switched to Fiocchi 124gr and they were perfect. I shot the stock barrel first had some decent grouping. I replaced the stock barrel with storm lake and the grouping seemed to tighten up some. I then thought hmmmm let me try the stock barrel back in just to compare again. This time I shot the 10 round group in the picture below. Clearly there is nothing wrong with my stock 9c barrel! The storm lake provided no clear advantage. It did function perfectly.
Off to the range I went. I was shooting at 7 yards indoors offhand. This time I had one light strike and the primer was clearly dented with Fiocchi 115. I switched to Fiocchi 124gr and they were perfect. I shot the stock barrel first had some decent grouping. I replaced the stock barrel with storm lake and the grouping seemed to tighten up some. I then thought hmmmm let me try the stock barrel back in just to compare again. This time I shot the 10 round group in the picture below. Clearly there is nothing wrong with my stock 9c barrel! The storm lake provided no clear advantage. It did function perfectly.
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