KWA LM4 Mega Arms: Has a few upgrades including a raptor charging handle, suppressor, rep magpul stock, red dot, flip up sights, and some other internal stuff (barrel, bucking, etc but can't remember for sure). I believe it also has an NPAS installed and last I used it it was shooting 370 on propane. In addition, I have 12 mags available. Asking 550 OBO for the gun and 3 mags. Additional mags available at 40 OBO each. AVAILABLE UNTIL FRIDAY THEN ITS GOING TO STORAGE!!!