Highlander Airsoft reviews another AEG available at Begadi, the E&C SMR16 10.5" S-AEG with the Begadi CORE EFCS. A full metal AEG with ambidextrous controls, this AEG has a Ventilated CNC aluminum piston head with ball bearing, CNC cylinder head made of brass with two O-rings and a large Sorbo Pad, and the piston has 15 teeth.