Kays Airsoft goes over the features of the Golden Eagle M4 C16 Modular S-AEG that is made available by Begadi for Germany-based airsoft players. According to Begadi, the Golden Eagle’s 0.5 J. models are specially adapted with tuning internals, including a 12T Sector Gear, allowing for the use of 11.1V batteries with a high rate of fire (ROF) and an installed ASCU (EFCS) with Mosfet for burst mode.

The receiver is made of metal, with a modern aluminum handguard that is M-LOK compatible, adjustable flip-up metal sights, and a metal outer barrel and flash hider.

It comes with 2 LowCap magazines, an adjustable nylon fiber stock, QD sling mounts, and an adjustable Rotary HopUp Unit. The internals include a V2 Gearbox with 8mm steel ball bearings, aluminum nozzle and piston head, solid piston with steel teeth, aluminum cylinder head, steel gears, and a long type motor. The EFCS/Mosfet features an internal ASCU with cycle and battery monitoring, trigger via microswitch, mechanical fuse, fast response behavior, intelligent active brake, overvoltage protection, short circuit protection, and is made in the EU.