D-BOYS M16A4 RIS (5581M) with 330FPS

[ehobbyasia.com]

Fixed Stock design and store up to 8.4v Large type battery, skeletal RIS Rail System, include QD Carry Handle, Tactical Forgrip, PEQ Battery Box & Rail, covers could still be mounted on the long ris rail, charging handle allow opening the bolt cover to adjust HOP UP, full metal magazine accommodate 300 Rounds of 6mm Plastic Bullet, constructed of Version 2 Metal Gearbox with same mechanism as of Tokyo Marui's. Surprisingly, this AEG shoot out 330FPS muzzle power nicely out from the package. Counter-clockwise 14mm Barrel Extension looks very authentic .