Description S&T M3A1 Grease Gun Airsoft 520rd Magazine. Hicap for Matrix and S&T Gun Beautiful replica of the WWII SMG used by the US Military forces, this replica magazine is made from a high quality metal . . The M3A1 is a collectible for Airsofters, re-enactors, vehicle display guys or gun enthusiasts! This model uses 6mm BBs. This magazine is recommended for use with the S&T or Matrix M3A1 Grease Gun SMG. It may work with other AEG brands but cannot be guaranteed
