No T r 4 d e s. Who else hates the limited battery space inside of an Mp5k? Me too! Introducing- a buffer tube! You’re welcome. Elite Force Externals are all metal build of course, except for the lower receiver and MFT minimalist retractable stock. Internals are stock, but the Systema motor combined with an 11.1v stock tube Lipo makes things nice and snappy. Wired to the rear with Deans. Clocks in at 300fps on a .20g bb at 21RPS. Does not come with red dot or straight mag; but does come with a standard 200rd curved highcap mag and everything else you see. Hit me up for a shooting vid or questions!👍🏼