Jonny's BB gun is a unique Red Ryder BB gun found in Fallout 2.
The Red Ryder BB Gun is a BB gun made by Daisy Outdoor Products and introduced in 1938, that resembles the Winchester rifle of Western movies. Named for the comic strip cowboy character Red Ryder, it is arguably the most famous BB gun in American history.
This is identical the normal Red Ryder BB gun, but has a shorter maximum range.
This gun can be found down the town well in Modoc in the northern part of the underground area. Use a coil of rope to climb down the well in the town, and in the back of the cave will be Jonny's BB Gun.
Used in the Finding Johnny quest - This weapon is part of the quest in Modoc, finding Balthas' son, Jonny. Finding this weapon and subsequently giving it to Balthas will convince him that his son is dead.