Hop Up Chamber (Part No.5) For KWA KM4 AEG Category_Loading Nozzle & Related The Slide hold Open /

The Slide hold Open / Lock functional when the Pistol fires empty

20g Marui BBs Barrel Cleaning Tool Shooting Target Instruction Manual Parts Reference Guide Tokyo Marui Product Line Up Guide Original Box Manufacturer Tokyo Marui / TM Length 250mm Hop-up Adjustable Shooting Mode Semi/Fully Automatic Fit Battery Pack Other Custom Pack Magazine Capacity 40 Bullet Type 6mm BB Power (Muzzle Velocity) 220 FPS

or discolorations

The re-designed inner shape makes the installation more easier

Hop Up Chamber (Part No.5) For KWA KM4 AEG Category_Loading Nozzle & Related The Slide hold Open /The KM4 AEG hop up Chamber fits all KM4 Series rifles, including the SR Series.