Hi all I purchased a second hand smk pp700w pistol today with a stock fitted and its great , the trouble I have with it its WAY overpowered and I need to lower it to 5.5 if possible , is there an online guide on how to do it or can anyone pm me with the way to do it correctly I have wound the hammer spring right off and wound the transfer port in and its just and only just within the legal limit , I would like to adjust the reg the hammer and the port to optimal settings but don't have a base line to go by , I do have a chrono ,
regards
scott