The thing with using random parts is that the gun as a whole usually needs to be somewhat tuned to it's full potential. Recoil/Gas/buffer/springs etc.
If it is functioning optimally and still shooting poorly. I would try a different optic before anything. If it was still shooting poorly I would strip it down and inspect everything. If nothing looked suspicious Then I would probably swap the barrel.
I would like to see pics also.
If it is functioning optimally and still shooting poorly. I would try a different optic before anything. If it was still shooting poorly I would strip it down and inspect everything. If nothing looked suspicious Then I would probably swap the barrel.
I would like to see pics also.