RWA Agency Arms Threaded Steel Outer Barrel for Tokyo Marui G17 (Black Nitride) Rainbow 8 The KWA E 14 bucking fits The KWA E 14 bucking fits all electric KWA rifles Item Weight (gram) 2140 Major Color Black Length 380mm 590mm Barrel Length ~165mm Blow Back Yes Hop up Adjustable Shooting Mode Semi Fully Automatic Other Power Source Gas (HFC134a or HFC22) Magazine Capacity 40 Rounds Bullet Type 6mm BB Power (Muzzle Velocity) 400 FPS (Top Gas Test @ 25°C Room Temperature) 320FPS (HFC134a Test @ 25°C Room Temperature) Manufacturer KSC Package Includes UMAREX MP7A1 SMG Airsoft Gun (H&K Licensed) Something that will catch your attention is the shiny black texture it's something rather beautiful