Nice mk18 it is a vfc receiver and Daniel defense rail. Internally it has a gate Titan 12 to 1 gears all shs compression parts has a Cnc hop up unit with a Prometheus tight bore barrel with umbrella armory rhop. Shoots around 1.3 holes with .32s and was recently sent to dan blomquist for a tune up Does not come with any accessories. Message me with any other questions. Trades are welcome how ever I will not ship first and trades are only for hpa guns or gbbrs