$600 obo or trades for a hpa setup or possible other trades. wetech m9 sword cutlass with 3 non leaky mags works very well and nice kick. kwa mac11 with one mag. runs really well and fast rate of fire!!!-sold i have a fully built m4. wetech aeg cylinder head and wetech cylinder and wetech piston head, shs/rocket Swiss cheesed piston and a m100 spring, with a g&g spring guide, gate titan with tactical programing card and usb link, here is a 3d printed double tap pink speed trigger and can replace with a retro arms flat trigger if wanted. shs 13.1 gearset. i have a elite force motor and a knock off magpul motor grip. it is in a classic army m4 lower. will include the m4/m16 full stock-sold