Simply Aritz shares what he thinks about the licensed Krytac KRISS Vector GBB SMG. The KRISS Vector Gas Blow Back SMG Rifle is designed to be realistic and high-performing, combining real-world engineering with Krytac's gas blowback technology for an authentic experience. It features a unique, lightweight bolt assembly for a fast rate of fire and gas efficiency, a precisely adjustable hop-up system for fine-tuned accuracy, a quick-change barrel system for easy customization, and lightweight aluminum magazines that hold 60 rounds.