This is the Hk mp5k competition series, Has a Brand new lonex mp5 gearbox shell, custom shimmed relubbed with reinforced internals. Reason I'm selling is because the shell Is big for the body as it's a Mp5 shell not Mp5k so it all doesn't really fit together. This would be a project gun if someone wanted as the body is in perfect condition and the gearbox could be used for another mp5. Comes with every in the pictures 2 high caps and battery, has all the parts needed to put together, comes with extra tapart plate and some screws that came with the new shell and original box Firm on price, open to other guns