This is my much loved and used training weapon. I’ve had it a while so I will do my best to recall the parts.
I think it is an a&k receiver set, steel cylinder, rwa rotary hop, etiny electrics (currently set to semi and 3rd burst. Comes with 3 magpul mags, shoots and feeds great. Selling ad now into recoils and gbb.
Downside is the clone stock has a notch out of it abs I would change the connector although it works fine.