New MadBull Airsoft Assassin's Barrel Kit for the M9/M9A1... "Many Airsoft players email us and request for assassin barrel kits for M9. So, we come out this wonderful kits for owners of SOCOMGEAR/WE M9/M9A1. Complete barrel set with inner barrel, outer barrel, outer barrel set and hopup. Steel threads for dummy suppressor (Gemtech Outback and Blackside are suggested). 235mm 6.03 MadBull world famous tight bore barrel."