Firearm sight and universal mount

Abstract

A sight assembly may include a body or chassis having a channel configured and dimensioned to fit on and secure to the rib or rail of the barrel of a firearm. A pair of opposing pivotable cams are configured to secured against opposite sites of the rail using screws or other members to provide a biasing force against each cam. A light source directs light through an optical housing supported on the chassis and through a lens toward the user, such that the light may be visible only when the firearm is properly aimed.

What is claimed is: 
     
         1 . A sight assembly, comprising:
 a chassis;   an elongated optical housing supported by said chassis, said optical housing including a light source for directing light through the housing and a lens for receiving the directed light;   a cam assembly including at least one cam pivotably secured to the chassis for securing the chassis to a firearm.   
     
     
         2 . The sight assembly of  claim 1 , wherein the chassis includes an elongated channel axially aligned with the optical housing, and the cam is configured to pivot to a position within the channel. 
     
     
         3 . The sight assembly of  claim 2 , further comprising a locking member for providing a biasing force against the cam toward the channel. 
     
     
         4 . The sight assembly of  claim 3 , wherein the locking member is a set screw, and said chassis includes a threaded hole for engaging threads of the set screw. 
     
     
         5 . The sight assembly of  claim 2 , wherein the cam assembly further comprises a pair of cams pivotably secured to the chassis on opposite sides of the channel. 
     
     
         6 . The sight assembly of  claim 5 , wherein the cam assembly further comprises a pair of set screws, each set screw configured to threadably engage with a corresponding hole in the chassis and impart a biasing force against one of the pair of cams. 
     
     
         7 . The sight assembly of  claim 6 , wherein each cam of the pair of cams has an end with an angled surface, and each set screw has an angled tip for engaging the angled surface and forcing the cam toward the channel. 
     
     
         8 . The sight assembly of  claim 7 , wherein the channel is configured to fit on a rail of a firearm barrel, and the pair of cams force against the rail to secure the assembly when the pair of set screws are tightened. 
     
     
         9 . The sight assembly of  claim 8 , further comprising a rail adapter configured and dimensioned to fit within the channel and a gap of the rail to prevent movement of the sight in at least one direction along the rail of the firearm. 
     
     
         10 . The sight assembly of  claim 1 , wherein the light source is an LED. 
     
     
         11 . The sight assembly of  claim 1 , further comprising an LED disposed within the chassis, and wherein the light source of the optical housing receives light from the LED. 
     
     
         12 . The sight assembly of  claim 11 , further comprising an optical fiber for directing light from the LED to the lens. 
     
     
         13 . The sight assembly of  claim 12 , wherein the optical housing further comprises threads for minimizing glare from the light source. 
     
     
         14 . The sight assembly of  claim 13 , further comprising a button in the chassis for controlling power to the sight assembly. 
     
     
         15 . The sight assembly of  claim 14 , wherein the button further controls intensity and color of light emitted from the LED.