MAXX Model Airsoft CNC Aluminum Hop-Up Chamber AEG Series ME - PRO LED (Gold) HkArmy the KM4A1 is equipped with hpa m4 adapter FPS Range 370 400 Style:Blue/White NINJAPK68D

the KM4A1 is equipped with a reinforced metal gearbox utilizing KWA’s unique 8 and 9 mm ball bearing bushing combination and case hardened

Fiber optic front sight w/ ghost ring rear sight provides uninterupted view

Color: Battleship Grey

which is a technically advanced surface treatment that changes the molecular structure of the SUS304 Stainless Steel

5 & AEG 3 gearboxes to combine the industry

MAXX Model Airsoft CNC Aluminum Hop Up Chamber AEG Series ME PRO LED (Gold) HkArmy the KM4A1 is equipped with hpa m4 adapter FPS Range 370 400 Style:Blue White NINJAPK68D the KM4A1 is equipped with a reinforced metal gearbox utilizing KWA’s unique 8 and 9 mm ball bearing bushing combination and case hardened Fiber optic front sight w ghost ring rear sight provides uninterupted view