Dual clamping device

An apparatus for selectively engaging a plate for photographic equipment and a Picatinny rail assembly for a firearm, said apparatus comprising:

• (a) a body defining a portion of an upper channel having a first side wall;
• (b) an arm defining a portion of said upper channel having a second side wall capable of lateral movement with respect to said first side wall suitable to detachably engage a pair of inclined surfaces of said plate;
• (c) said body defining a portion of a lower channel having a third side wall;
• (d) said arm defining a portion of said lower channel having a fourth side wall capable of lateral movement with respect to said third side wall suitable to detachably engage a rail of said Picatinny rail assembly;
• (e) wherein said upper channel is at a higher elevation than said lower channel;
• (f) said body defining a lower surface between said third side wall and said fourth side wall;
• (g) said arm is slidably engaged with an elongate stud extending between a base and said arm;
• (h) said elongate stud extending between said base and said arm at a location at least partially directly above a plane defined by said lower surface and said stud at least partially located within a region defined by a perimeter of said lower surface.