Sci-Fi Metropolis in collaboration with master propsmith Richard Coyle, created this 1:1 scale model of a laser pistol from the 1960s sci-fi TV series Lost in Space.
We should warn you though ("Danger Will Robinson!"), the limited edition models aren't cheap: they go for $600 a pop.
Link - Thanks Anthony Taylor!
http://calicolightweaponsystems.com/home/index.php?page=9mm
considering the show predates the gun by aboiut 20 years it is an odd cooincidence.
I guess if you're a fan of Lost In Space they would be ok.