How do you take a derringer apart?

Advantage of nickel not stainless vs blued steel rifle barrel? What is the age of colt SAA revolver? How old is a Stevens 16 ga single shot? What is a 1945 model 25 red ryder daisy bb gun origal in the box excellent cond worth? What firing rate does a SMG have? What is the price of a Winchester model 67? Where are the 6 weapons in sleuth hound? Need Belts on Montgomery ward tiller mod. no.gil 39012b? Need magazine for Remington woods master model 742 150th anniversary? What do all the barrel markings on a Remington model 721 30.06 mean? How do you get the merit fabled legend in the gun game 2? What happens if you have a gun and its not registered? When was a 9mm Browning made with serial number 73c72732? What is the most powerful CO2 pistol? How much is a Charles daily 54 cal hawken worth? What is the best 270 cal rifle to buy? What are smith and wesson's first names? Where can you find a forend for a savage 99f featherweight? When was the OF Mossberg Model 340k 22 s-l-lr pat pend? What is the value of a Stevens 16 gauge model 107b?