Johnny Seven OMA (One Man Army) is a multi-function toy weapon produced by Deluxe Reading under their Topper Toys toyline, and released in 1964. Johnny Seven O.M.A. was the best selling boys' toy of 1964, and was marketed heavily on children's television. It has a unique number of features, including seven different actions (hence the "Seven" in the name).
This toy gun is no longer made and has become a collector's item.