Probably a Cybergun M4
Includes gearbox, motor, lower - metal, pistol grip. All extra furniture for the lower.
Rear wired with a fuse
Tested with a battery and piston fires on semi and auto. Not sure what spring is in it but can include a new spring for an extra £5.
Buyer to collect but can post for extra cost and fees.
Basically you get what's in the photos
