KWA MS120 mid-cap Mags for Electric M4 - (Pack of 3)Features Injection molded polymer construction Raised textured shell provides a superior grip Mock window with mock bullets Dot matrix for ease of marking and identification Last round follower ensures every round is fired from magazine Pack of 3 Compatibility: For KWA M4 M16 Series Airsoft AEG Rifles. Due to KWA Magwell size fitment will vary with other brands Capacity: 120rds