Bought three 10 round magazines, having a issue with releasing the slide lock with magazines inserted, even pulling back the slide a little to release tension on the slide lock doesn't allow it the be released.
Tried them in all 5 of my 1911s. Only the Sig Sauer was able to release the slide and go into battery.
The others are Kimber, Springfield and 2 RIA, none of them would release the slide to go into battery.
Never a problem with my 8 round magazines.
Help ???
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