The ARP 9 2.0 airsoft CQB carbine comes with a 9mm style mid-cap magazine that holds up to 170. rounds. Easy flip metal front and rear iron sights. Top metal rail can accommodate a red dot sight for added optics. The all metal 7” M-Lok milspec rail system makes it easy to attach any accessory to it. High quality polymer receiver and metal rail and rear stock assembly. Internally it will house the G&G rotary hopup system, pre-installed mosfet and an electronic trigger unit (ETU).