Fully upgraded metal receiver MP5 SD5. This is an older G&G body with all new internals. Internals upgraded with Gate Aster, quick change spring gear box, 16:1 gears, high torque motor, new compression parts, and properly shimmed. Long barrel (353mm) installed and is completely hidden with the suppressor. Will include MP5 optic mount, sling, and 3 magazines. $300 obo including shipping through HopUp. Feel free to message me with any questions.