King Arms went back into producing theses series as there is a growing demand for them... "This Knight's SR-16 E3 is a full metal constructed AEG with full markings. It is equipped with ambidextrous mag release, bolt catch and selector. The integrated bolt catch/release system makes the hop-up adjust easily accessible. Comes with folding front sight and free float URX rail system, which has 5 sling swivel slots on it. The body and stock also has a sling swivel slot on each side. The stock is capable to store up to a 1400mah 12v crane stock type battery or user can use Li-ion battery and install it inside the stock pipe. Package includes a 300-round magazine, 2 panels, foregrip, sling swibel, BB loader, and user's manual."

Knight's SR-16 E3 KA-AG-33

Knight's SR-16 E3 CQB Carbine KA-AG-71