Advanced Armament SPR-M4 5.56 MM suppressor (iMIS591)

Advanced Armament SPR-M4 5.56 MM suppressor. Uses the M.I.T.E.R. (Multi Indexing for Targeting at Extended Range) system which is the first adjustable zero fast-attach silencer mounting system. Requires an overlapping flash suppressor mount from AAC. Class III item. NFA rules do apply. New.