Failure to Feed

I wouldnt be surprised if the change was the mag catch. They could then cut the old hole also, while old mags dont have the cut for the new mag.

Sent it in for repair took about a month and half to get back. They replace the bcg and extractor. Works good now

A couple of things to to solve many issues with feeding:

  1. Replace the buffer with an extended 9mm buffer ( one that has reciprocating weights in the buffer ). I used a Vltor A5H4.
  2. Also, I added a 9mm buffer spacer. I purchased a polymer model on ebay that I could modify or shorten to desired length.
  3. Make sure the travel of the bolt ( when you pull the charging handle all the way back ) is no more than 1/4 inch from bolt catch , some recommend somewhere between 1/8 -1/4. This will insure your bolt catch will not break and the brass will feed correctly.
    From my testing, I concluded that replacing the stock buffer with an extended 9mm buffer and an additional buffer spacer will correct misfeeding issues.

Hope this helps!

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#1 and #2 transformed my ARV into a reliable runner. I am using the Macon Armory deadblow buffer with a Spikes spacer. Have about 1/8 travel past catch and the gun cycles flawlessly! Few hundred since these mods and not one failure.

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Yes. These mods solve most issues with the blowback 9 platform. I’m just not sure why Palmetto does not correct this issue in there current AR-V’s. Seems like cost, but ignoring the issue leads to poor reviews creating less AR-V sales.

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can you please share a link to those 2 items?

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i forgot to ask, those items were installed on which model? the 7"?

Similar to this?
https://palmettostatearmory.com/angstadt-arms-9mm-buffer-kit-aa09bufkit.html

Don’t think it matters. Mine is a 16" carbine.

Mine runs great with the factory spring so I did not swap it.

Picked up an AR9V from my LGS and immediately started having failure to feeds. Pretty much the same situation that most of you were seeing where the round would jam up about a third of the way into the chamber. Unfortunately I started modding the gun as soon as I got home from the store so I knew I had to figure this out on my own or with help from another experienced builder. Here’s what I did from everything that didn’t make a difference to finally what solved my issue.

No help list:

  • Replaced buffer and spring
  • Polished feed ramp and chamber
  • Polished bolt “bearing” surfaces
  • Tried OEM and Magpul Scorpion mags
  • Tried multiple different ammo

What fixed it:
Polished, somewhat chamfered the leading edges of the extractor. 100% reliable with any mag and ammo now with no repeat FTFs. Tim at Taccom suggested it
and sure enough that’s what fixed it. Even better because I polished everything it runs like butter now.

I saw a post that an extractor fixed someone’s issues but wanted to share my fix along with what didn’t help just to share.

Also wanted to share what’s on the gun to help with similarities or differences. All in all I’m guessing if you have an AR9V you’ll/we’ll all have the same bolt and subsequently the same extractor.

Added mechanics:
16” Faxon light barrel
VG6 9mm comp
Taccom (Delayed Blowback buffer w/flatwire spring)
Magpul 35rd mags (mostly what I run)

Ergos:
Taccom Carbon Handguard
Taccom Adjustable minimalist stock
Taccom magwell, bolt and mag release
16moa CMore dot
3moa offset Viper
Still trying to decide on a trigger

It’s a Steel Challenge gun

What fixed it:
Polished, somewhat chamfered the leading edges of the extractor. 100% reliable with any mag and ammo now with no repeat FTFs. Tim at Taccom suggested it
and sure enough that’s what fixed it. Even better because I polished everything it runs like butter now.

Do you have any before and after photos?

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Submitted a warranty claim about five days ago and have heard nothing from PSA.

I cycled/fired 200 rounds through my PSA AR-V 9mm this past week, a combination of PMC 9mm 115grn FMJ and CCI Blazer Aluminum 9mm 115grn FMJ. I used only a single Magpul CZ Scorpion 35rd mag. About every 3-6 rounds fired I experienced failure to extract, failure to eject, stovepiped casings, double feeds, or crushed casings in the chamber. I has some casings stuck hard enough between the bolt carriage and the inner receiver wall that the bolt was stuck. I had to drop the mag and pull on the charging handle whilst hard tapping the end of the buffer tube on the ground to get it to free up. Not ideal.

I lubed up well with Slip2000 EWL before firing.

Is the headspace out of spec—has anyone verified this is indeed an issue?
Is the extractor bad? Mine is straight and it’s solidly installed.
Is the buffer too light or too heavy?
Is the buffer spring too light or too heavy?

I checked the feed ramp and it’s solid, screws are tight.

The charging handle seems to bind in its track toward the rear section of travel. The phosphate finish is even worn to silver aluminum at the edges where it rides in its track. I swapped it for my of my BCM gunfighters and it slides smoother. I’ll have to try it again to see how it cycles. Other than that I love this platform. I just need it to not fail unless extremely dirty.

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Doubtful it’s a Headspace issue. It’s 9mm - the chamber is headspaced off the cartridge rim. It could be a bolt-travel issue, or weight, or even oversprung. Or combination of a couple of things that are only slightly out-spec, but combined work together to frustrate the shooter.

9’s are Finicky as :face_with_symbols_over_mouth:.

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I have seen lots of issues wuth folks who use the magpul scorpion mags.

What about the CZ USA Scorpion mags? Those cause any issues on the AR-V?

I ordered some 9mm dummy rounds and plan to manually cycle those “a lot” from a magpul mag to see how that works. I’m used to 5.56 failures to extract, double feeds, etc., but this beast doesn’t even bother to grab the case from the chamber. It’s like the buffer spring is too stiff.

I have an AR I built that runs a super light buffer, a milled out bolt carrier to make it lighter, and an Syrac adjustable gas block for the lightest recoil, good follow up, fast shots—tuned just to the point of reliably cycling the next round, nothing more. A lighter buffer reduces recoil, but it may not cycle fully if there is not enough gas to either blowback the carrier or operate the piston to strike the carrier back (I have Adams Arms piston ARs I built too). It needs the right push backwards and the right buffer and spring. I’m a little fixated on the charging handle and how it binds at this point……definitely not normal. MTF. Going to try some other buffers on hand soon here.

I only use the PSA mags.

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That[quote=“GuitarGuy, post:84, topic:11303, full:true”]
I have seen lots of issues wuth folks who use the magpul scorpion mags.
[/quote]

Magpul is what I have access to buying off the shelf within a reasonable drive since I live in MD. PSA won’t ship me anything over 10rds. I do have three CZ 10rd mags and I used them all that day too. Same issues. I didn’t reload them and stuck with the Magpul mags. I’m leaning toward an issue with the buffer, buffer spring, charging handle, or polishing the inside of the upper track where the charging handle rides since it unusually binds in there. I have several ARs and none of them bind in the charging handle track like this upper receiver. This is just a blowback system, no gas DI or piston. There’s nothing to adjust there. The feed ramp is solid in mine. It has to be something in recoil/cycling. The extractor and ejector are probably fine. I think it’s a weight and timing issue.