Hi guys here is my H&K UMP, originally it was a two tone but was stripped down and re painted. It comes in its box with two hi cap mags. Great power at 330Fps. It comes in its box with two hi cap mags. 
It needs fiddling with on the firing selector, some times it will slip from full auto back to semi and then you just put pressure on the switch nudging it forward and it shoots in full auto again. I’d look at the gears on fire selector lever on the outside of the gearbox may just need adjusting a tooth or just use as is, so it needs messing with and Because of this I am selling it at a lower price. 
No guarantees with this one at the lower price of £50.00 collected from Birmingham or £60.00 posted.