M4 Armalite SIR S-System AEG



The M15 / M4 Armalite SIR S-System AEG. Plastic body, metal gearbox, and plastic RIS system licensed by ARMS (S.I.R. system). Uses a 9.6v nunchuck battery with ease. Adjustable hopup. Flip-up rear sight. Quality built gearbox system. This is a fantastic S-System M4 for the money! We're quite impressed with this sportline gun model.Please note, the battery and charger are not included. Uses any standard 9.6v nunchuck or mini battery.

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