Shadow 1 takes a look at the MOSFET-equipped Classic Army Block 3 M-LOK AEG. This AEG features a durable metal alloy frame, sights, and RIS, as well as a 9.5" M-Lok handguard with a full length Picatinny top rail for mounting accessories. It also has an ECS system that lets you program 3 or 5 round burst modes, and a quick change spring system for easy spring swaps. The charging handle is ambidextrous for convenience.