I like my Sci-Fi Prop/Sci-fi guns to be massive! So, I took this rather large "Sci-Fi Revolver (which I really liked to begin with) and added a re-scaled M203 grenade launcher underneath the barrel.
I really like the new over/under look! At this scale, the main barrel is .50 caliber and the under launcher hhas a 1 inch bore (which is equal to 5 Gauge... or 25mm).
