I just picked up one of these to play with.

Good ergonomics, very close to the original MP-5 in weight and other specs. Good sights.

Trigger pull is long, soft, and inconsistent. It'll need some work.

Accuracy out to 100 meters was as good as can be expected with this short barrel. Overall quality could be better, in fact, as a German made firearm it could be a lot better.

Three malfunctions in the first 500 rounds. One was a "stove pipe" and one was an ammunition failure wherein the cartridge case broke apart and stuck in the chamber. The third malfunction came about when the gun went full auto for a burst of 5 rounds with one trigger pull. !!!

Not a serious gun, but worth the price as a toy.