A good look at the East Crane SAI 13.5" AEG in this video by Airsoft Sports. This SAI variant is appreciated for its ergonomic design, play-free construction, and reliable internal components, further featuring authentic markings, a 5.56-style magazine receiver, a 13.5-inch forend, durable aluminum alloy and ABS plastic construction, Picatinny and M-LOK interfaces, removable front and rear sights, a 14- muzzle thread, a buttstock battery compartment, a 275mm inner barrel (6.05), an initial velocity of 120-130 m/s, and a version 2 gearbox with standard parts.