Arcturus PPK-20 M1 FE Steel-Bodied Airsoft AEG SMG

"Have been through this gun thoroughly now, although I have not used it at a game I've put about 20 magazines through it doing target shooting.

Pros:
Incredible build quality, it's possibly the most well fit-together airsoft gun I've ever held. Materials and fit/finish screams quality
Performs very well out of the box, I have no desire to change anything about the hopup/barrel/motor/gearbox, it just shoots so well and the hop up adjustment works perfectly.
Hops 0.3g BBs out to at least 40m (130ft) - after that is a wall where I have been testing it, so I cannot test further but no doubt it will go further than that.
Programmable MOSFET works great, and easy to setup.
Accurate out the box - 8cm grouping at 20 metres, which I find to be very good for an unmodified airsoft gun.

Cons
Looks aren't for everyone, and attachment space is limited to very small MLOK slots
It is heavy for a small SMG (probably because of high quality materials used)
Battery space is very small, although a thin stick type lipo can slot through into the front handguard which helps
Stock is not comfortable to shoulder / shoot (not really Arcturus's fault, its a good replica of the real stock)
I don't think magazines from other PP-19s are compatible? That is perhaps an issue. The Arcturus mags feed great though.