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Lower AR 9 receiver


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I just built up a PSA px9 lower and matched it up to a Davidson defender PCC upper and the brekke barrel/comp with smoke handguard. Run perfect in practice this morning.

I also ran the lower with an iron city upper and it ran fine with that also.

Hope the helps.

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3 minutes ago, TeedOff said:

I just built up a PSA px9 lower and matched it up to a Davidson defender PCC upper and the brekke barrel/comp with smoke handguard. Run perfect in practice this morning.

I also ran the lower with an iron city upper and it ran fine with that also.

Hope the helps.

Yes Sir,

That's all i needed to hear!

Thanks

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  • 2 months later...
On 8/10/2020 at 3:07 PM, dmshozer1 said:

PSA PX-9mm lower receiver,

Website says it can only be used with their upper.

True or marketing?

I have a Odin upper to put on it if it will work.

 

Follow up on the above,

Put the PSA lower on the Odin dedicated 9 upper. After putting about 100 rds. through it, i had some

stovepipe type malfunctions. Tried different ammo, buffer springs, buffers and worked on extractor tension.

Same malfunction. Took the gun apart many times and finally noticed brass markings on the receiver port.

Put the gun back together. Noticed that the ejector sat really low in relation to the Odin port. It has a small

opening compared to the PSA upper, Mister dremel opened up the bottom of the port as much as I dared.

I figured out the brass was hitting the bottom of the port. Gun has run perfect since then.

That was a new one for me.

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