3 position collapsible aluminum butt stock with rubber recoil pad replaces fixed stock on Benelli M4 shotguns. Precision injection molded forend is constructed of a glass filled impact modified polymer with picatinny accessory rail at the 6 o’clock position. Forend has mounting points at the 3 & 9 o’clock positions to accept standard AR-15 hand guard rails to mount additional accessories. U.S.A made and sec. 922.R compliant.