Poor accuracy and cheapo parts - POF USA P415 Edge 10.5 in Barrel 5.56x45mm NATO Upper Receiver Assembly

As another reviewer mentioned, the BCG is not a full auto. The bolt is slick NP3 coated but the bolt is a black rough likely phosphate, definitely not smooth like a nitride or DLC finish. The charging handle is a basic. And compared to another piston firearm of the same length, using the same ammo, the POF has poor accuracy. I used a pain RDS on the other and a SIG Tango4 1-4 scope on the POF to give it an advantage but man, I could not get a tight group. I’m sure this upper will be very durable but it’s also so dang friggen heavy. And did I mention 2 FTE, the brass casing almost ejected but got slammed into the barrel extension. I’m using an H2 buffer and the piston is in normal mode. I think there are better choices out there.