Shipping was fast. Assembly was a piece of cake, and this was my first build. You cannot beat the price, service and quality.

Will this fit PSA GEN2 KS-47 MOE EPT SBA3 PISTOL LOWER RECEIVER,

Is there a specific lower required for this upper?

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AR-15 platform. Standard AR15 lower. Thank you

Ok so far I'm impressed.
I also ordered a charging handle to go with it and they did not forget.
It supposed to come with a quad rail but that sent it to me with a nice slim m-lok rail. How dare they give me a better looking rail lol.
Ok what I'm impressed about is the fact it had a consistent ejection. All the spent casings landed at my 4 O-clock in a 2foot pile. I'm happy thank you moriarti arms.
Ok so the only cons the rail is cheap u can tell in the picks anyway but it's a pistol and don't effect me. Also the muzzle brake it came with I didn't realize it was a can it's like a fake suppressed thing lol but cheaply made I dont think that's on them though.
All it is is a thread on cap that has a groove to tighten allen screws in to hold the can on its weird. If I want to keep it on add locktight and snug that threaded bushing down.

Any reason why a 7.62x39 will not chamber correctly when closing bolt chamber. Works fine without ammo but when I place ammo in it won’t close all the way. Any way to fix that issue?

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Dear Richard. Please contact customer support with your Order Details to correct the situation. Thank you