MP5 Cylinder in stock Muzzle Energy: 0 Kleur:Everglade Muzzle Energy: 0 Material: Aluminum Steel Pieces: 2 Rail Type: Picatinny Weaver Profile Level: High Ring Diameter: 30mm Ring Width: 22mm A: 30mm B: 22mm C: 22mm Weight: 170 g Shipping weight: 210 g Guarder is one of the most proven spare parts company in the airsoft community high quality products