Good: Gun has full SHS internals and high speed motor. Has some type of mosfet. Has a switch to select ROF. Wired to deans Box Mag has its own lipo battery Runs 14.8 lipo for high ROF & 7.4 for lower ROF Bad: Box mag doesn’t feed M4 stock adapter plate is cracked (will include) Charging handle isn’t spring loaded anymore. Price is just a ballpark, buyer pays shipping. Will accept AKs.