G&P M4A1 (14.5") Reinforced Aluminum Outer Barrel for M4 AEG FN Herstal P90 depending on how you want

depending on how you want set it up

Magazine Capacity :26 rounds

1 magazine and 2 additional back straps (3 sizes in total)

up to four user defined operating functions ranging in visible colors and IR signals either flashing or steady

G&P M4A1 (14.5") Reinforced Aluminum Outer Barrel for M4 AEG FN Herstal P90 depending on how you wantReinforced Aluminum Constructed One Piece Outer Barrel Light Weighted Design for M4 M16 Series Airsoft Electric Gun AEG Rifle Barrel tip end has Clockwise 14mm Thread Super rigid construction for high end upgrade user SKU GP966 Item Weight (gram) 200 Major Color Black Length 370mm Adaptive End 14mm Clockwise Built Material Metal Manufacturer G&P