Glock 43 extended mag reliability

[Dismas316]

What's been the best mag extension for the g43? Thinking of the tt +3 or maybe the ETS 9 or even 12 round for a back up carry magazine. What have you found to be the most reliable?

[Dismas316]

https://youtu.be/NP0mQeLWCCo

[Gun Mutt]

The only malf I've had in my 43 was during the first 150rds with original mags from the box. I now run it with either a Pearce +1 and/or a Vickers/Tango Down +2. I've also an early TT +1 from before they offered a stronger spring. I don't carry it, but I do keep it loaded with OEM spring in place as a test. In my 700ish rounds, I've not had a malf from any of my extended mags.