First off I would like to state that I just inherited this gun, and is my first firearm. I do not know much about guns, so I thought I would try to get some advice from the helpful community here at firearmstalk. The problem I am having is the slide seems to be jammed or maybe just stuck, but I can't seem to be able to pull the damn thing back. I made sure both the grip safety and the trigger was pressed and the gun wasn't loaded before I attempted to do this. One other thing I noticed was the manual safety was also stuck in the off position (not sure if this has anything to do with the slide). A bit about the gun: This gun was issued to my great grandpa in 1917 while he was a supply officer in the US Navy. ColtAutos.com has some more information on it: World War I Navy Colt Model M .32 ACP - From the beginning of production until WWI, there was only one significant military order for the Model M. It was a 200 gun shipment ranging in serial number from 227226 to 260924 on September 29, 1917 to the U.S. Navy Yard, Washington, DC...These pistols had no special government ordnance, inspectors or acceptance markings applied at the factory." Besides it not working, the gun itself looks to be in great shape, no dings, nicks, or scratches; just some slight wear on the finish around the grip. Being this gun has a lot of family and american history associated with it, I thought it would be best to restore it to working condition. A friend of mine says I probably need to oil the slide, but I thought I would get your opinion before I try anything.