Arms Magazine takes a look at the Japanese airsoft version of the Abu Dhabi Carbine, the VFC M16A2 GBB Carbine... "There are countless variations of the M16, including prototypes, and there are two models called the Colt M16A2 carbine. One is an A2-type lower receiver equipped with an A1 upper receiver, a cylindrical handguard, a 3-burst mode, a straight 14.5-inch barrel, and a metal retractable stock (later the A2 upper receiver was fitted and it became the M723). The other is the so-called 'Abu Dhabi Carbine' (M727), manufactured by order of Abu Dhabi, equipped with a full auto mode, a 14.5-inch stepped barrel, a cylindrical handguard, and a reinforced resin retractable stock on the A2 upper/lower receiver. This time, VFC reproduced the latter M727."