Sunday = Gunday with the Umarex MP5K GBBR
The MP5K was first introduced in 1976 by H&K as an even more compact version of the already compact MP5 submachine gun for extreme close quarter engagements in clandestine operations and close protection.
With Umarex now coming out with a GBB MP5K in its original 1976 variant, Andrew takes a look at this offering from Umarex in this airsoft MP5K review.