The Umarex gas blowback MP5K has full proper licensing from Umarex. It was built by VFC meaning that the external weapons design and markings reminiscent to the real steel version.
The 30 round real cap magazines have a very steep double stack make jams unlikely, if feeds Top / Green / Propane gas which affords the weapon about 330-350 FPS with 0.2g. The gas reservoir is more than enough to cope with the cool down whilst emptying the magazine in either rapid or full auto fire.
The hand grip is modeled exactly after the real MP5K which gives this weapon unparalleled realistic feel when it comes to its looks and functionality. The main body and magazine are metal but the lower receiver and grip is all polymer like the real thing.
The real MP5K is 2.5kg and 35cm long; this replica is 2.3kg and 32cm making it a little lighter and shorter than the real thing. As a metal GBB SMG, it also weight distributes similar to the real thing as the furniture is real and metal distribution is similar.
As if it did not just look good on paper, it also kicks like the very best GBBR Airsoft guns out there. If you are big fan of MP5Ks and are looking to get an top-of-the-line GBB model then look no further, you would be hard pressed to find a better model than this one, short of the real thing.