Most daisy bb guns are made in China, with a few exceptions. Their Avanti line is built in Rogers, AR, and most of their CO2 pistols are made in Japan.
If you are asking about Daisy BB guns not rifles or any other brand made by Daisy. then I would have to say the Daisy powerline models 5502 and 5503 are the fastest Daisy BB guns at 430 FPS. The Daisy 880 and several other models reach 750 FPS. But these are rifles not BB guns like you asked in this questiion.
They were made by both Daisy and Crosman. Any BB gun model starting with 799 was a Daisy and any BB gun starting with model number 126 was a Crosman.
Daisy did not invent the BB gun. Hamilton made the first Daisy model in 1895. , but BB guns were around long before that. Lewis and Clark carried an air rifle with them on the travels to the West and the Austrian army had air rifles as early as the 1500's
Daisy has made several BB guns. Which model are you asking about. I suggest you contact DAISY Customer service and ask them for a parts diagram. See the link below.
This BB rifle is made by Daisy. The number will be on the barrel in front of the rear sight.
Daisy and Crosman made numerous BB and pellet guns for sears over the years. Without more information it is not possible to answer you.
Both of mine say made in Rogers Arkansas on the Box
Are you asking about a gun or a rifle. Which model are you asking about. Daisy had made over a 100 different BB guns and rifles
BB's are all the same size .175 for all the BB guns.
Manufacture names of BB guns: Gamo, Crosman, Umarex, Daisy and others To see the names used on BB guns See the link below
Daisy has been making BB guns sense 1898. You need to be more specific about the model you want
It would help if you said what model you are asking about. You need to give more information in order to get an answer. You also said "BB GUNS" are you asking about more than one gun?