This rifle is a G&G MBR308 which was just released earlier this year. With a lot of improvements and all the upgrades that have been done to this rifle, it’s nearly 100% upgraded. Featuring a MOSFET unit with microswitches and advanced technology, this rifle is burst programable, has cycle detection, and features a last round cut-off feature: when your mag is empty the gun will not fire. Put in a new mag and you’re good to go. Extremely snappy in semi and great ROF. Despite the FPS, this gun sounds more like a DSG for trigger response. Complete compression and durability upgrades means this is built to preform and to last. Internal upgrades to the gearbox feature: Full metal rack piston (AOE corrected) M140 spring, Aluminum air nozzle with o-ring, Aluminum cylinder head with Sorbo and duel orings, Full cylinder, Torque-up gearset, Metal bushings, Torque-up motor, and a Full metal ball bearing QD spring guide. Other upgrades include wiring to deans, a Prometheus 590mm Barrel with R-hop, modify nub and bucking, prowin hop-up, literally everything upgraded. Externals have also been completely upgraded! Features madbull aluminum rail system, Magpul PTS stock, G&G custom pistol grip (not shown), Creme filled mock suppressor, Magpul PTS AFG, Magpul PTS rail covers, Ambi buffer tube sling mount, and more. This rifle has well over $1,200 put into it. Shooting consistently at 480fps, this DMR has great consistency and can send rounds out far. (FPS can be changed easy, it has a QD spring change system). Short dot for sale separately. If you have any questions feel free to ask, no trades thanks. Thank you for looking and have a great day.