A look at the licensed Specna Arms RRA SA-E05-L EDGE With Light Ops Stock AEG that is available at Tanie Militaria. The Specna Arms SA-E05 is an M4/AR15 AEG with a focus on close quarters combat. It features a reinforced ORION gearbox with a quick change spring system, a rotary hop-up unit, a Gate X-ASR MOSFET, and a 6.03mm tightbore inner barrel. The SA-E05 also comes with a new Light Ops stock, which is designed for comfort and snag-free operation.