Removing bolt on Cooey model 600
Hi, if it is anything like the model 600 there will be a single screw on the bottom of the stock which secures it to the gun. Remove the screw which will alow you to remove the stock. Once the stock is removed you will see that the location where the first screw was threaded into is also a screw. Back it off enough to allow you to drop the tube about a quarter inch. Once this is done the bolt will be free to remove. Hope this helps!
froese2504