A look at the heavy AEGs from E&C which are based on Heckler & Koch designs with Begadi upgrades, SMR17 and SMR28, in this review by REAPERs Airsoft. These AEGs are entirely metal-constructed, with the exception of the handle and stock. They feature a CNC-manufactured aluminum handguard, a 21mm rail for optics mounting, and a CNC-machined flash hider.

Both sides have a functional bolt catch, fire selector, and mag. Other features include an extended trigger guard, sling mount attachment, fully adjustable FlipUp Sights, and a modern pistol grip. The HopUp Unit is designed in a rotary style, and there's a 14mm negative thread for silencers and tracers. The crane stock is made of nylon fiber. Each AEG comes with 2x MidCap magazines, each holding 120 rounds, and DEAN connectors.

They exhibit a quick response behavior, thanks to the internal EFCS/Mosfet. They also have a Spring quick change system, a 6.03mm tuning barrel, an adjustable trigger, and a V2.5 gearbox with an 8mm bearing. The AOE is adjusted via a large Sorbo pad on the cylinder head. The Begadi Mamba 28K motor is equipped with neodymium magnets. The Begadi PRO FLY5 HopUp Bucking comes with a matching Begadi PRO tensioner. The nozzle has two O-rings, and the AEGs are 11.1V LiPo ready.