The GSG 522 PK is a realistic electric airsoft submachine gun built for intense airsoft skirmishes. This semi/full automatic gun has a compact body design with ambidextrous fire selector switch and is great for cqb airsoft missions. The gun features a quad Weaver/Picatinny rail foregrip, a high-capacity 250 rd magazine, and a shot velocity of 370 fps (using .20g BBs). Dial in the 522 PK's long range accuracy with the adjustable hop up unit. This is a solid airsoft gun for advancing your squad in the battlefield. Do not miss this gun!