out of the box chrono @ 450fps. Internals set up. Torque motor Metal 7mm bushings steal gears polymer piston 1 steel teeth real decent cylinder head and airnozzle ball bearing spring guide metal hop up I've put a random CA weak spring in it: FPS: 382 ROF: 14.2bbs/sec with a 9.6v 1500mah. (mini connector, should improve with conversion to deans.) heads up: wood color could be two tones, Gearbox screws will need locktite(blue). Wood furnitures wobbles. (electrical tape shimms;)