Highlander Airsoft reviews the E&L AK 104 PMC "Diamond Series" Begadi version which means it has been equipped with Begadi enhancements and making it meet German regulations. Description here is more from Begadi... "This series is the latest version on the market. Compared to the previous models, all weak points have been eliminated in order to be able to offer our customers a perfectly functioning and durable system.

With the Diamond series you will find a Begadi CORE EFCS with Mosfet ex works and can therefore use 11.1V LiPos without hesitation. The internals have also been revised. In addition to the lightweight piston with complete steel teeth, the Diamond series also features a new piston head made of CNC aluminum. The 6.04mm tuning barrel with Maple Leaf HopUp & Tensioner round off the system and also enable the use of heavier BBs."