Buy a new one a suggest of eBay or amazon.
----------------------------------------------------
Check the web for "Airgun Repair" and locate a shop near you to have it repaired.
yes 50 metres is pretty good if ur using a spring or electric bb gun. it is average for a gas bb gun. the average for an electric/spring bb gun is 30m
The Spring is the power source for the gun. When the gun is cocked the spring compresses and when the trigger is pulled the spring releases and pushes a piston that compresses a tube fill of air that fires a BB out of the barrel.
A BB gun is a gun which shoots BB-size pellets, typically with the use of compressed air, or a compressed spring.
Trigger, cocking lever, Spring, Piston tube around the spring. BB loder and barrel
Yes
Piston and spring.
Find an authorized repair center
yes
US Patent Office
No it is a single spring powerd fire
Gravity feed means just that. Some BB guns feed BB into the chamber using a spring to push them. When a BB gun is gravity fed it just means the next BB falls into the loading chamber there is no spring to push them.
If it is a gas gun, no. However, some are spring guns, and some are electric.