This posting is for a Classic Army SR25. This gun has a Classic Army SR25 gearbox installed in an A&K SR25 lower/upper for better mag compatibility. The gun is wired to deans and comes with 6 magazines, one which is high cap and the others mids. This rifle also comes with the optic and bipod. The following upgrades have been installed: SHS Gears Matrix CNC piston/piston head M125 spring Matrix dual O-ring cylinder head SHS SR25 air nozzle Prowin Hop Up Prometheus Purple Bucking and Nub Prometheus 6.03 tbb Neodymium high torque motor PSG style grip Gun chronos at 480ish with .20 and has a FPS deviation of 3+\-. Overall a great DMR platform, I am horrendously short so this rifle is way to large for me and I do not enjoy the DMR style of play like I hoped I would. The price is already set very low for the platform so keep that in mind. I regards to swapping, I am only interested in an M4 platform if it’s a krytac and or hpa rig. Apart from that willing to look at other options provided the values are similar.