My FX-9 ran flawlessly for about 200 rounds (of varying types) expended among three different operators at the range yesterday, excepting one issue.
The last round bolt hold open appears to be working consistently for Glock Gen 5 magazines, but inconsistently for others (Gen 4 in particular.)
I was under the impression that there were no dimensional differences between the Gen 5 and Gen 4 mags, so I'm wondering what the issue might be?
The last round bolt hold open appears to be working consistently for Glock Gen 5 magazines, but inconsistently for others (Gen 4 in particular.)
I was under the impression that there were no dimensional differences between the Gen 5 and Gen 4 mags, so I'm wondering what the issue might be?