I just bout the first strike upgrade kit for my older T9 because of 2 reasons, I want to shoot first strike rounds and my stock bolt broke!
Before I installed the new bolt and spring I realized that the mag that came with the kit along with an additional first strike round mag won't stay in my marker. It appears that my latch that releases the mag is facing the wrong side so when I put the mag in the marker it isn't catching anything to stay in place.
My original mags are machined all the way thru so that the mag would catch regardless to which side the latch is. Any help would be appreciated.