Why was the cap gun invented?

What is the value of a Thompson Center Hawkins 50 CAL It is about 25 years old and was from a kit? What is the thread size for the front sight of a stoeger condor? Wincherster model 90 22 wrf octagon barrel sn 808196 what is its age and value absolutely mint condition? Where can you get info on a 22 cal single shot single action smith and Wesson pistol model of 91 serial number 16210? What is Value Remington model 12? 1978 38 special colt cobra serial numbers? What is sks rifle serial number 1432? When was the mod 14 cal 22 made? Is a 6 .35mm cal cartridge the same as a .25cal cartridge? Hello you own a enders royal American double barrel shotgun marked Wells Fargo and co Is this a true coach gun If yes or no what is the value? What is an Elgin Arms Company 12ga double barrow shotgun worth? When was my jc Higgins model 101.1 410 shotgun made its single breech? What year was ruger single six sn 69-31326? What is the value of the arminius 22 cal magnum revolver? Spiegel shotgun Model 31 bolt action? What is choke size savage 775 if there are no markings? How old is a wooden handle Benjamin Franklin pistol bb gun the first one made? What is the age and value of a 38 special colt revolver with a 4 inch barrel serial 312009? What is the approximate age and value of a Sears-Roebuck 22LR Model 282 bolt action rifle? Where can you find information about a 22 caliber rolling block with the markings ELG in circle T with a star over it and S J D?