M4 RIS Commando is not bad!

The packaging had little Knicke.Die Airsoft even had small thin scratch, but that is ignorable.
The assembling is not difficult, but a guide would not be bad.
The magazine fit many balls and everything worked (after one year there were problems - the spring sometimes got stuck, because I had to try with a pointed object the blockade to solve)
A Red Dot Sight (with loose contact) is attending.
The accuracy is so; the shots go a little further down and right as desired and the firepower is ok (under 0.5 joules)
To attach a telescopic sight is rather difficult at the rail that can fix the typical ball namely delay in one direction (red dot sights should work).
A firing sequence is possible with the train system, which does not sit back really. But is also suitable for left-handers.
The weapon weighs 1.5kg has Vordergriff.Tragegurt, HighCap magazine (sometimes jammed), adjustable shoulder rest .... (as stated in the description)
Conclusion: The gun is somewhat imprecise, as Softairs the same price class (40-50). Optics and accessories are sufficient.