Hop up: adjustable, Magazine material: ABS, Bearings type: steel ball-bearing, Gearbox version: v.3, Bearings diameter: 7 mm, Magazine model: hi-cap, Battery type: cube, Accumulator connector type: small Tamiya, Battery cells type: mini, Battery included in set: YES, Material: ABS, aluminum, Color: black, Fire type: auto, single, Ammo: .23g, .25g, Serial number: YES, Length mm: 730, Inner barrel length mm: 260, Magazine capacity BBs: 200, Battery voltage V: 8,4, Battery capacity mAh: 1100, Gun Model: SIG