The Classic Army AR4 SBR Carbine is made of high quality metal. Made with an M-Lock and URX rail for all the parts and accessories on the 5-inch strong polymer handguard that includes a RIS system on the top for any optics and also on the bottom for flashlights and PEQ boxes. With a brand new gearbox and ECS that allows 3 or 5 round bursts with a single pull of trigger, motor protection and a low battery detection to save your batteries from over-discharging. Also includes a quick-change spring system to easily adjust FPS as needed.
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