POTD: H&K SP5K : The REAL Semi-Automatic MP5 For Consumers Posted March 7, 2016 in NFA / Suppressors / Class III, Photo Of The Day, Pistols with 50 CommentsTags: H&K, iwa, mp5 Miroslav sent us this photo of the H&K SP5K on display in Germany at the IWA gun expo. Read more about the H&K SP5K here. Advertisement