S&T M4 URX4 KM 10" Challenger Line G3 AEG DE (COLT engraved)

・Manufacturer: S&T
・Total length: 700-785mm
・Magazine: 340 rounds, spring-fed bullet type *Made of steel
・Connector shape: Mini
・Full/semi-auto
・Variable HopUp system
・14mm reverse screw
・Mecha box: QD type
・Equipped with S&T G3 electronic trigger

(Material)
Nylon fiber: frame, stock, etc.
Metal: hand guard, outer barrel, hider, etc.