Hey guys,

I'm having light primer strike issues on my GSG-5. It was purchased new a few months ago.

Seems to work best with Federal 525 ammo but that's about it.

I tried disassembling and oiling everything, even took the drop safety out and I still have the light primer strike issue.

Anything else I can try before sending it in for warranty repair?

Your GSG is apparently an older one, right?  And out of warranty?  If so, and IF you are handy enough, check-out the "firing pin" modification in the pinned threads.  It worked for me.

First though, clean the bolt face and the breach face really well, get off all the carbon deposits, even use a pin or other fine-sharp object to get it out of grooves where the casing seats.  Spray out around the firing pin opening with Gun Scrubber.

3 months old! And it is a newer one.

I took apart the entire firing pin mechanism and cleaned and oiled it thoroughly. Did not help.

Che...what confused me was your saying it was a "GSG-5" as opposed to a "GSG522".  Or is this new and REALLY old new/stock?

Under warranty...call ATI and send it back.  From most of what I've read and certainly by my experience ATI has excellent customer service.

It is indeed a GSG-522 SD. It's new.

Called ATI and will be sending it in for repair.

Please post the results of your experience and any info on what caused it (if ATI determines a cause and tells what it was).

It might be a fairly easy fix you can do yourself.

Light primer strikes I've encountered were due to the barrel rotating out of the trunnion block.
Essentially due to vibration, the barrel will rotate a little (unscrew) and move slightly forward - allowing the cartridge to move slightly and absorb the shock of the firing pin and not go off with a solid strike.

If you re-tighten the barrel  it may promptly fix the problem.  I think they are left hand thread If I recall.  You should be able to remove your suppressor, get a strap wrench or use some tool and tighten the exposed part of the barrel without dis-assembly.

If it continues, you can clean the respective thread surfaces and use loctite to hold it on - it won't move easily after that.

Will do that!

Interesting, I just may try that.

I tried taking the drop safety out but it didn't have any effect on the light primer strikes. I also took apart and cleaned/oiled the firing pin assembly... No effect there either.

I'll try to tighten the barrel, maybe that will help!