Will they replace the channel locks or will I just get the shaft? (pun intended)
Take it to a QUALIFIED gunsmith, they will check it for you.
Best to get it to a gun expert and have him take a look at it. Don't try to dismantle the gun if you don't know how to do it.
The ONLY reliable way to know if it is safe to shoot is to have a qualified gunsmith examine it. You didn't state it's age but if it is an antique that predates 1900, it could have been made for black powder shells or it could have been made for lighter loads of smokeless powder. In either case, shooting modern factory shells in it could cause it to blow up. Don't take a chance. Either take it to a qualified gunsmith for evaluation or use it only for a wall hanger. Don't even think of shooting it otherwise.
Don't hit the mouse. If it is a lap top you can turn the mouse pad on the laptop off while you are typing.
from your description - the gun should be safe but - i would wear some gloves and safety glassesand also shoot it holding at my side waist level - the first time - get some 2 34 inch shells 5 OR 6 shot that you could use later for hunting OO buck shot is best for home defenseor a gun smith will check it for around $30Good lucktake care
