Nuprol M4 Hi-Cap magazine. 370rds

Nuprol M4 Hi-Cap Magazine

Metal cased Hi-Cap magazine for M4 style AEG's. 

Holds up to 370rnds which are fed into the rifle via a spring powered mechanism inside the magazine. 

Users wind up the spring via a wheel on the bottom of the magazine. 

FOR AIRSOFT USE ONLY.