Cylinder changes are done quite easily. Just pop the rear push pin and open the weapon up as you would the real weapon. Then pull back the charging handle and remove the cylinder. It's no different then pulling the bolt carrier from a real one.
Battery is held in the crane stock. Fairly easy battery change and the wiring is heavy duty.
Some quick notes about the M150. With this cylinder your pushing 500+ fps with .2s. With the 12volt battery you have a solid stream of BB's. You can engage targets well beyond the range of most standard AEGs. It is extremely dangerous at close range. If it were allowed in a game strict rules would have to be in place for safety reasons.
M150 VS heavy gauge roofing aluminum.
M150 VS ESS goggles. They survive but are completely unusable.
More to follow