KC Tactical does an unboxing Specna Arms SA-C12 CORE Gate X-ASR MOSFET Unboxing and give their take if it is the best S-AEG (German-spec) for beginners. A compact AEG, it is mainly mde of nylon-fiber reinforced polymer. It features the standard ESA seen in other Specna Arms AEGs and it has a gearbox with 8mm ball bearings, steel gearset and a polycarbonate piston with a full steel rack.
Stu talks about the Specna Ams SA-C12 CORE AEG that is available in PDW and Carbine variants at Patrol Base... "The CORE series of the Specna Arms family of Airsoft Electric Guns offers affordability and quality in one robust package, coupled with internal parts which put jaws on the floor. The Receiver, Stock and Pistol Grip are made of a high-quality Nylon Fibre to keep the package lightweight, whilst still maintaining a rigid core for a tough rifle.