Manufactured between 1962 and 1970. Adjustable blade front and fixed notch rear sights, the MBAssociates model and caliber markings on the left side below the barrel, the patent on the reverse, nickel small parts and a pair of smooth grips. With an unnumbered factory box and two 12mm Gyrojet cartridges.

Near new, in box with only the slightest handling marks. Mechanically excellent. The slightly browned box is very fine with some minor handling/storage marks.