PSA 22 AR upper/BCG issus

[mikeg556]

Hey guys,
I got issues with my new PSA 22lr/ BCG group. I slapped it on my Spikes lower that uses a Toms tactical NiB trigger group. I also bought three CMMG 10 round mags and loaded those with some CCI mini mags.
The first four rounds that I loaded in all had lite primer strikes. The next few shot, then I had some failure to feed. The rounds seemed to be feeding in at steep of and angle and bent the cartridge. I had that happen quite a few times. Tried all three mags but all seemed to have the same issue.
I stopped and pulled the BCG and oiled the firing pin. I hand cycled the pin about 80 times to stretch the firing spring. It felt stronger than I expected when pushing on it.
I put the BCG back it and shot a few more rounds until I had a few more failure to feed. I seems like there is a lot of slop with CMMG mag in the Spikes lower. If I pulled the mag towards me when firing, it seemed to feed better better. I shot through a couple more mags with maybe on more lite primer strike and a stove pipe. I then let go of the mag and held the hand guard for the remaining shots. Half way through the last mag I got a failure to eject that got lodged in the barrel. At that point I stopped and called it a night.
Have any of you with 22 AR experienced these problems?
I think the lite primer strikes will go away once I break in the BCG but is that normal? Could it be a weak trigger spring?
Failure to feed. Have you guys had feeding issues with CMMG mags. Do other brands of magazines like the Blackdogs have less slop? Could there be some other issue with the upper or lower tolerances? My 5.56 Radical upper runs with out any kind of issues on the Spikes lower.
Thanks in advanced your help.

[chomorro]

I use 15 22 mags with a better mag adapter and it runs great. Friend uses the same cmmg with cmmg mags and has all the issues you are experiencing. I think it's the mags. I never tried mine so I will test them out.

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[ARFrog]

I use 15 22 mags with a better mag adapter and it runs great. Friend uses the same cmmg with cmmg mags and has all the issues you are experiencing. I think it's the mags....

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+1 on the 15-22 mags and Better Mag Adapter

Op's comment about slop between the magwell/feed ramp and magazine may likely be the problem. While I have not seen this with a PSA upper, I have experienced a similar situation with a Marlin 795 where there was a tolerance issue between a magazine and the feed ramp. In that case anytime there was backward pressure on the magazine from sling or hand, then there was an increase in feed issues.

Good luck trouble shooting!

[Cheep]

CMMG upper and BlackDog mags, runs like a machine.

[mnichols]

Buy or borrow a different mag and try it.

[DesertDave100]

The PSA site lists Black Dog magazines.

When I was researching .22LR uppers, I was under the impression that CMMG mags were made to run with their conversion kits, and that there was a difference between those mags and Black Dog mags.

In my experience, the Black Dog mags with metal feed lips will eventually crack where they attach to the mag body. I have seen this on my original purchase, and on the replacements that Black Dog sent to me. I have not seen this with their plastic feed lips.

[WHH]

+1 on the 15-22 mags and Better Mag Adapter

Op's comment about slop between the magwell/feed ramp and magazine may likely be the problem. While I have not seen this with a PSA upper, I have experienced a similar situation with a Marlin 795 where there was a tolerance issue between a magazine and the feed ramp. In that case anytime there was backward pressure on the magazine from sling or hand, then there was an increase in feed issues.

Good luck trouble shooting!

Another vote for this solution. Mine runs flawlessly.

[Jimi Jah]

Deep cleaning, polishing the slide, chamber and feed ramps fixed my issues. These are rough when new. Slip 2000 EWL also helps a lot.

[Garand Hunter]

I bought a CMMG 22lr convert kit and use it in a Rock River upper with a Superior lower with Black Dog mags. No issues. Never used, never plan to use the CMMG mag. Too long, and I am not a AR purist having to use 30 rnd length mags. It hangs too low to be useful. CCI Mini mags and Winchester rnds have worked great.

Psalm 1

[aolis110]

My new PSA 22 upper was producing light primer strikes and jams when I used the Black Dog and CMMG mags. I put in a Wolf heavy duty hammer spring, and now it functions fine with both mags. Brownells from time to time has free shipping. You can get the Black Dogs for $15.00.

[jimster716]

I run the CMMG conversion kit with CMMG mags, haven't had any issues.

From pics on the PSA site, the bcg doesn't appear to have a barrel collar with adapter. I believe this adapter assists in seating for feeding reliability. Can you confirm? Maybe because it's a dedicated upper, the barrel incorporates the collar for seating.

CMMG BCG with collar and adapter.

[Spyder]

I've got a Chiappa mag that I use with mine, and sometimes it does the same. Pretty annoying. I need to get some BDM mags.

[crufflers]

In my experience, the Black Dog mags with metal feed lips will eventually crack where they attach to the mag body. I have seen this on my original purchase, and on the replacements that Black Dog sent to me. I have not seen this with their plastic feed lips.

That blows. Yeah the plastic ones like the one that comes with the SIG522 run great in the Sig or AR22's. Have a bunch of those steel lipped ones too though. Good to know BDM will replace them.

[mikeg556]

Yeah I'm amazed at how much play there is with the cmmg mags. My AR hexmags have very little play so I wonder if it's a manufacturing issue. It seems like if it had a tighter fit it wouldn't be an issue. Hopefully the light primer strikes go away when I finish my 22 dedicated lower. I'll try that Wolf hammer spring in there.
Thanks guys.

[jimbo74]

I use 15 22 mags with a better mag adapter and it runs great. Friend uses the same cmmg with cmmg mags and has all the issues you are experiencing. I think it's the mags. I never tried mine so I will test them out.

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I haven't shot mine yet, but this is the setup I run

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