A. Sanford Wolfe

A gang plots the robbery of an armored-car company headquarters. Although the robbery itself goes off as planned, it's not long before the gang members are fighting among themselves over everybody's share of the loot and trying to avoid capture by the police, who are pouring all their resources into capturing the robbers. Based on a real-life 1950 Brinks Armored Car Co. robbery in Boston.

Christopher Colt was apparently a gun salesman, but was, in fact, a government Agent tracking down notorious bad guys. (imdb)