A result of cooperation between Taiwan Gun and East Crane is the EC-909 Battle Rifle AEG and Taiwan Gun has made a quick presentation of this AEG... "Announcement of a new airsoft replica created as a result of cooperation between Taiwangun and East Crane companies. It is a 7.62x51mm semi-automatic precision rifle replica that the most talented special forces snipers use when they only have a choice. American marksmen from USASOC and operators of the Polish Military Unit GROM carry and shoot from it. It replaces the well-worn Mk 11 Mod 0 semi-automatic sniper rifles in these units.

The rifle replica on the AR-10 design allows for easy integration of the platform with the latest telescopic and red dot sights, bipods, front grips, sound suppressors, gun slings and other necessary accessories. The presented model is in a configuration with a 16-inch free-floating barrel, an aluminum handguard with a QD system, aluminum upper and lower receivers, and a 6-position adjustable stock with a place for a battery.

The mechanism is a V2 LONG gearbox compatible with the Retro Arms shells and features a quick spring change system, steel gears mounted on 8mm ball bearings, a rotary Hop-Up chamber and a MOSFET (optional)."