A gunsight mount for mounting a scope-type sight to an automatic handgun, such as a .45 automatic, has a housing including a channel for receiving the barrel and slide of the gun. The housing has an opening at the bottom, at the end most adjacent to the handle of the gun, for providing a clearance for the trigger guard. A protuberance is disposed at the bottom adjacent the slot and includes an adjustable stop member. The housing is supported on a mounting pin passing through the sides of the housing and through the slide stop pin bore of the gun. An elevational adjustment screw extends into the channel from the bottom of the housing for rigidly securing the mount to the gun while providing elevational adjustability. The scope-type sight may be fastened to the top of the housing.