Mattel ©1966 Space Productions. Gun/weapons set consists of two main hard plastic pieces which can be assembled into larger rifle or used as stand-alone weapons. Gun has viewing scope, "Shrieking Space-Tracer" whistle attachment and launches two "Roto-Missiles" saucers. Assembled size w/both gun units in place is 20" long. Larger of two units has foil sticker w/Mattel logo and "Lost In Space - Roto-Jet Gun" on one side of barrel while opposite side has detailed simulated controls. This unit produces a loud pop when trigger is pulled and is known as the "Pistol" while the smaller gun is the "Roto-Launcher." When the smaller unit is connected to the front of the larger unit, it forms a sub-carbine and when reversed, forms rifle. Set shows lt. wear/aging from use but set is complete and VF overall w/decal fully intact. Rare complete, especially w/the "Shrieking Space-Tracer." Our last boxed example of this classic Lost In Space toy sold for $13,282.