Adapt. Overcome. Dominate. Initially introduced in early 2017, KWA's AEG 2.5 featuring the Variable Performance System (VPS) took the airsoft industry by storm. The VPS system allows users to fine-tune the gun's FPS by using a specifically designed tool included with all KWA AEG 2.5 systems without the need to disassemble the gearbox or gun. You can essentially play at your favorite indoor arena shooting under 350 FPS (0.20 gram BB's) and still play at an outdoor MILSIM event with the same rifle on the weekend. Also featured on the AEG 2.5 platform is KWA's mechanical/electrical cut-off system that will prevent the gun from firing on an empty magazine. Compatible with K120c and MS120c magazines, this allows users the excitement of having to perform a realistic loadout and hit the bolt catch to continue the fight. NOTE: Battery and Charger are not included. Weight 8.5 lbs Dimensions 41 × 10 × 4 in Mag Type AEG, M4/AR15 Rail Style Keymod Rounds 120 Stock Type Retractable Power System AEG Variable (cut off) Platform Rifle Length (Retracted): 35.75 Length (Extended): 39 Height: 9 Outer Barrel Length: 18.5 Inner Barrel Length: 18.875 Magazine Capacity: 30/120 Weight: 6.7 Gearbox: AEG 2.5 Electronic Trigger Ready: NO Rate of Fire: 19 Velocity: 400-450 ADJ. FPS Power Source: Li-Fe/Li-Po (Deans Connector/T-Plug) Rear Wired Operation: LITHIUM POLYMER Adjustable Hop Up: YES FPS Range: 400-450 ADJ FPS Firing Modes: SAFE, SEMI AYTO,FULL AUTO Motor Type: KWA HIGH TORQUE MOTOR Stock: KWA CRANE STOCK Rail Type: 15.25 inch KEY MOD Rail Muzzle Device: A2 BIRDCAGE Compatible Magazines & Additional Features: EMPTY MAGAZINE CUT OFF, ADJUSTABLE VPS TOOL INCLUDED