G21 and Intermittent FTF

[Erik_J]

Having a new issue with my G21, looking for some help as I think I covered the basic stuff.

Gun shoots well, just will fail to feed the last round in either mag, intermittently. I ran 8 mags through last night and I got 2 FTF on the last rounds. It happened once last time I shot, out of 10 mags through, so I chalked it up to the mag springs. They are from ~1993, so I replaced the springs. Problem persists. Until recently the gun ran flawlessly.

The gun was clean, so I don't know what else to check on the G - they are pretty simple. I was shooting bagged range ammo, but that should not matter - its a Glock, right? Should feed anything.

Could something have aged out on it? It was bought somewhere's around 1993 and I have lost track of how many rounds have been through it. Can't be toooooo many as I only have used it for range duty and desert plinking, + one or two classes?

Any ideas out there before I punt and pay a smith?

[DannyInSoCal]

If you replaced the mag springs -

99% it's the ammo.

Not even a Glock will eat ANY crappy ammo...

[Lumpia is sarap!®]

Did you clean and lube the gun?

[Roddd]

Is the round nose diving onto the feed ramp on the last round?

[Erik_J]

Did you clean and lube the gun?

a quick barrel snake and oil on the slide tracks. Admittedly, not my usually more thorough cleaning.

Is the round nose diving onto the feed ramp on the last round?

No. If anything, there was a scuff mark on one of the bullets on the top side. The other failure - no such mark.

[aermotor]

Might need a new recoil spring.

[Erik_J]

Check. I'll try a new recoil spring - should be cheap enough.

THanks all!