Hey all, im looking for an option for higher capacity magazines for a spare carry mag for my glock 43. I have a few +2 extensions but was wondering if they make basepads that are +3 or more. I tried ETS 12 rd mags and they were garbage (pics included of malfunctions, the feed lips are very flimsy).
FAB Defense makes a +4 extension for the G43 (and for the G42). But be aware that single stack (or almost single stack) magazines for 9mm Luger cartridges are more prone to feeding problems as the magazine tube becomes longer with a larger extension (e.g., +3 or +4, as opposed to +1) because of the smaller diameter of the case mouth relative to the case rim. (See the pics below.)
[Edit]
As a matter of fact, FAB+4 is the only mag extension that has ever failed to feed HTS and Gold Dot when I tested it with both of my super reliable G43s, which have been working flawlessly with all other popular mag extensions I have (i.e., MagGuts+1 and +2, Pearce+1, and TTI +1 and +2) whether shooting JHPs or FMJ.
FTFeed with FAB+4 typically occurred once in every magazine or about 10%. Some may think 90% success rate with the FAB+4 is “good enough” for them. But I cannot rely on a magazine extension that I know fails to feed my carry ammo that often.