The second installment of featured ASGI custom guns... "Airsoft GI Full Metal Tech Challenge I is the airsoft gun that helped Frank win the first ever Airsoft GI Top Tech Challenge. The base gun is a Dboy RASII M4 but it has been made into something much more. The mid length SOCOM Gear MK18 rail and barrel extension allows for a longer barrel and plenty of rail space for mounting accessories.

The internals have been tuned and shimmed by our master tech for much better gear teeth contact and better gear rotation than the factory set up. The Systema hop up is matched perfectly with the Systema hop up bucking and the Systema tight bore barrel. The air seal components have been changed to the Modify piston head and cylinder head. Finally the motor has been upgraded to a G&P High Torque motor. This gun has been tuned by the best. If you're looking for pinpoint accuracy then look no further.

Specifications:

• Manufacturer: Frank
• Muzzle Velocity: 400-415FPS
• Magazine Capacity: 300 Rounds
• Package Includes: gun, magazine, sling, vertical grip, rail covers, battery, charger, 4x zoom scope

Features:

• SOCOM Gear MK18 RIS
• Systema Tightbore Barrel
• Systema Hop Up Unit
• Systema Hop Up Bucking
• Modify Metal Bushings
• Modify Air Seal Nozzle
• Modify Aluminum Piston Head
• Modify Cylinder Head
• King Arms Piston"