Semi and fully automatic select fire! Magazine shaped battery compartment. Light weight ABS polymer body Integrated front and rear sights. Parallax free optic, works in sub zero temperatures. Low power AEG perfect for the most extreme backyard skirmish war games! Forward 20mm accessory rails FN Scar Side Folding stock Vertical grip included FNS-9 Spring powered pistol included in kit Brand new box has never been opened.