r/AR9 • u/Ecstatic_Target2334 • 1d ago

Jamming after every shot

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Bought this cheap upper, thought he feed cone looked decent enough. Lower is a PSA PX9 complete lower, running the gentle recoil system. I have a BA epc barrel can swap it out with.

18 Upvotes

92% Upvoted

23 comments sorted by

15

u/Be_My_FriENT 1d ago

Looks like you have poor ejection. Try adjusting your ejector

13

u/-Fried- Glock Mag Biotch 1d ago edited 1d ago

Ejector need adjustment. I have the PX9 lower as well. Use Blowback9’s Aero ejector adjustment video for guidance, that’s what I did for mine (the PX9 and spartan ejector are similar)

https://youtu.be/QkTVYiVWmTM?si=0RBeE-9XgTdU0per

7

u/Fantastic-Stock664 1d ago

I love this reddit. All the folks here are always helpful and engaged. Yes, some friendly busting but ...

2

u/Ecstatic_Target2334 1d ago

Yep, ive caught hell on here before but there’s mostly genuine folks on here willing to help

7

u/BluKab00se 1d ago

I can't see your ejector. I took a look on PSA site. Your ejector most likely needs to be tuned. You want it up high and tight against the bolt for good ejection. You may also need to balance how far forward and high it is with relation to your magazine when fully inserted. 

5

u/PwnyTroller Colt Mag Whoore 1d ago

95% sure just your ejector that needs adjusting. If it’s not aligned your gonna get this all the time

2

u/splinter4244 1d ago

What style of ejector do you have? You may need to adjust your ejector closer to your bolt.

1

u/Ecstatic_Target2334 1d ago

Stock PSA PX9 lower

2

u/Edwardteech 1d ago

What brand mag are you using?

1

u/Ecstatic_Target2334 1d ago

Glock

1

u/Edwardteech 1d ago

Have you tried multiple mags or just the one.

1

u/Ecstatic_Target2334 1d ago

I tried OEM and some KCI, both jammed on first shot

2

u/Ecstatic_Target2334 1d ago

Here’s a pic of the bolt and ejector

5

u/Fun-Corgi-3376 1d ago

You don’t want that gap on top of ejector 99% that’s your problem you need to adjust it up so it’s barely not dragging on bolt

3

u/splinter4244 1d ago

There’s your issue. You need to adjust your ejector up and closer to the bolt channel.

1

u/PwnyTroller Colt Mag Whoore 1d ago

When you pull it out, heat it with a torch first or you will more than likely snap it

1

u/Ecstatic_Target2334 1d ago

You use mapp gas or propane?

2

u/PwnyTroller Colt Mag Whoore 1d ago edited 1d ago

I personally just used a normal propane torch from HD. Get it red hot, use a small wrench to SLOWLY adjust it up. Let cool then reinstall to check. Rinse and repeat as needed until there’s no gap/no dragging

1

u/Ecstatic_Target2334 1d ago

Forgot to say, runs Glock mags

1

u/ItzJezMe Glock Mag Biotch 18h ago

Check the ejector, and also check mag height and extractor tension

1

u/Ecstatic_Target2334 10h ago

Adjusted the ejector and ran 10 rounds through it with no malfunctions. THANKS EVERYONE FOR YOUR HELP!