TOP AK4D SECRETS

The KAC sr-twenty five I handed on simply shot lower than MOA. But no interchange able system of insert-ons and no FA and no 22 kit or practice ammo.What exactly else is different on these to create a good clone? I know the bolt carrier features a scalloped notch in it, the grip frame is marked "S-P-A" as well as the sights are lopped off with a lo