The 
G&G Armament Combat Machine ARP 9 Two Tone Blue
 is a popular, compact electric airsoft rifle (AEG) known for its high performance in close-quarters battle (CQB) and unique styling. Its two-tone finish means it is UK legal for airsoft players without a defense (VCRA). 
 
Key Features and Specifications
The G&G ARP 9 combines durable polymer construction with a full metal Version 2 gearbox, as detailed by multiple retailers. 
Materials: Features a fiberglass-reinforced polymer receiver with an aluminum M-LOK handguard and steel internal parts.
Electronics: Equipped with G&G's pre-installed Electronic Trigger Unit (ETU) and a programmable MOSFET, allowing users to switch between full-auto and a 3-round burst firing mode.
Trigger: Features a flat "speed" trigger for a responsive pull.
Stock: Uses a collapsible PDW-style stock (GOS-V5) that also serves as the battery compartment.
Muzzle: Includes an aggressive "crown amplifier" muzzle device that enhances the sound signature.
Magazine: Comes with a 300-round high-capacity 9mm-style magazine; compatible with mid-cap and a 1500-round drum magazine options. 
Specification 
Details
FPS (Approx)
330-350 with 0.20g BBs
Length
497mm - 590mm (adjustable)
Weight
Approx. 2000g - 2350g (varies slightly by source)
Inner Barrel Length
128mm
Recommended Battery
11.1V LiPo stick type battery (not included)
Fire Modes
Safe, Semi-Auto, Full-Auto (programmable for 3-round burst)