Abstract: A floating side rail clamp weapon accessory mount adaptor includes a stationary side rail clamp, a floating side rail clamp, and a leaf spring system that replaces prior art biasing plates. The floating side rail clamp moves as a single unit under evenly increasing influence provided by the leaf spring system coupled to the floating side rail clamp. The floating side rail clamp moves as a single unit such that a floating side rail clamp engagement surface of the floating side rail clamp remains substantially parallel to corresponding portion of a stationary side rail clamp engagement surface of the stationary side rail clamp as the floating side rail clamp moves, as a unit, towards the stationary side rail clamp in a direction substantially perpendicular to the stationary side rail clamp engagement surface.

Abstract: A compact and rugged sighting laser adapted to be mounted on the trigger guard of a firearm such as a handgun. The sighting laser includes a mounting block having a slot adapted to engage the trigger guard, and a housing configured to engage the mounting block. The mounting block includes a hardened retention pin disposed at one end of the block adjacent the slot, and the housing includes a rearward extending plate with a groove configured to receive this pin. The housing further defines first and second bores generally parallel to one another and oriented toward a forward end of the housing. A laser module is disposed in an ellipsoidally shaped casing that fits within the first housing bore, while a battery for the laser fits within the second bore. Threaded screws disposed at a forward end of the housing at right angles to one another press against one end of the ellipsoidal casing in order to provide orientation of the laser with respect to a target point of the firearm.