Pistol

Abstract

Pistols have a body having a grip, the grip defining a magazine passage, the body having a trigger guard defining a trigger space, the body having an upper surface, the body having a first mounting facility, an upper frame assembly removably connected to the body in a connected position, the upper frame assembly including a trigger element extending into the trigger space when in the connected position, a protrusion extending upward from the upper surface of the body, the protrusion having a forward-facing first bearing surface, and the upper frame assembly having a rear-facing second bearing surface adapted to abut the first bearing surface when in the connected position to transmit recoil forces from the upper frame assembly to the body. The upper frame assembly may have a slide rail. The upper frame assembly may define a horizontal slide plane.

I claim: 
     
         1 . A pistol frame comprising:
 a body having a grip;   the grip defining a magazine passage;   the body having a trigger guard defining a trigger space;   the body having an upper surface;   the body having a first mounting facility;   an upper frame assembly removably connected to the body in a connected position;   the upper frame assembly including a trigger element extending into the trigger space when in the connected position;   a body stop portion proximate the upper surface of the body;   the body stop portion having a forward-facing first bearing surface; and   the upper frame assembly having a rear-facing second bearing surface adapted to abut the first bearing surface when in the connected position to transmit recoil forces from the upper frame assembly to the body.   
     
     
         2 . The pistol frame of  claim 1  wherein the upper frame assembly has a slide rail. 
     
     
         3 . The pistol frame of  claim 1  wherein the upper frame assembly defines a horizontal slide plane, and wherein the forward-facing first bearing surface is angled downward with respect to the slide plane at a selected angle. 
     
     
         4 . The pistol frame of  claim 1  wherein the rear-facing second bearing surface is parallel to the forward-facing first bearing surface. 
     
     
         5 . The pistol frame of  claim 1  wherein the upper frame assembly has a lower surface abutting the upper surface of the body. 
     
     
         6 . The pistol frame of  claim 1  wherein the upper frame assembly defines a recess having opposed parallel sidewalls and receiving the body stop portion in the recess. 
     
     
         7 . The pistol frame of  claim 1  wherein the body stop portion defines a first transverse bore, and the upper frame assembly defines a second bore registered with the first transverse bore when in the connected condition. 
     
     
         8 . The pistol frame of  claim 7  including a pin received in the first transverse bore and second bore. 
     
     
         9 . The pistol frame of  claim 1  wherein the body stop portion is forward of the magazine passage. 
     
     
         10 . The pistol frame of  claim 1  wherein the upper surface of the body defines a trigger opening communicating with the trigger space. 
     
     
         11 . The pistol frame of  claim 1  wherein the body stop portion is forward of the trigger opening. 
     
     
         12 . The pistol frame of  claim 1  including mating elements on the body and on the upper frame assembly adjacent to the magazine passage and adapted to prevent sliding motion of the upper frame assembly with respect to the body upper surface. 
     
     
         13 . The pistol frame of  claim 12  wherein the mating elements include a body stop portion on at least one of the body and the upper frame assembly and a recess on the other of the body and the upper frame assembly.