POTD: Roller Lock Goodness Posted January 2, 2017 in NFA / Suppressors / Class III, Photo Of The Day, Rifles with 2 CommentsTags: Dakota Tactical, mp5, roller lock Dakota Tactical took a picture of some MP5s they were working on. So many possibilities and a lot of fun. Who here has an MP5 from Dakota? I wonder how many of them are select fire? Advertisement