Unfinished firearm frame and jig

Abstract

An unfinished firearm frame having a top adapted to receive a slide. Where rear restriction protrusions extend from the top of the frame near a rear of the frame which restricts addition of the slide to the frame and front restriction protrusions extend from the top of the frame and forward of the at least one rear restriction protrusion which restricts addition of the slide to the frame. Where there is a recoil assembly block adapted to prevent a recoil assembly from being assembled into the frame. A jig having a right side and a left side to receive and clamp the frame. The jig including three pin hole guides, a removal guide edge for each of the at least one rear restriction protrusion and the at least one front restriction protrusion and a recoil assembly cutout to allow a tool to pass to the recoil assembly block.

We claim: 
     
         1 . A pistol frame workpiece for modification to become a pistol frame configured to receive a slide, the workpiece comprising:
 a body having a grip, a trigger guard, and a forward frame portion extending forward of the grip;   the body defining an upper surface facing away from the grip and configured to be proximate to a lower surface of the slide;   a receptacle defined by the body and configured to receive a rail component having upper rail elements configured to engage the slide; and   the body including an integral protrusion protruding above the upper surface of the body adjacent the receptacle and configured to prevent insertion of the rail component into the receptacle.   
     
     
         2 . The pistol frame workpiece of  claim 1 , wherein an aperture is defined by the body at the receptacle, the aperture configured to receive a pin engaging the rail component. 
     
     
         3 . The pistol frame workpiece of  claim 1 , wherein the block element is configured to contact the rail component to deny full insertion of the rail component into the receptacle. 
     
     
         4 . The pistol frame workpiece of  claim 1 , wherein the forward frame portion has opposed elongated upper edges in part defining the upper surface and spaced apart to define an elongated channel having a length and configured to receive an elongated pistol operating component; and further including a web positioned at an intermediate position along the length of the channel, the web spanning between the opposed elongated upper edges to divide the channel into a forward portion and a rear portion, and the web configured to prevent insertion of the elongated pistol operating component. 
     
     
         5 . A pistol frame workpiece for modification to become a pistol frame configured to receive a slide, the workpiece comprising:
 a body having a grip, a trigger guard, and a forward frame portion extending forward of the grip;   an upper surface defined by the body to face a lower surface of the slide; and   a protrusion integral with and protruding above the upper surface of the body and configured to limit proximity of the lower surface of the slide to the upper surface when present, and to enable proximity of the lower surface of the slide to the upper surface when removed.   
     
     
         6 . The pistol frame workpiece of  claim 5 , wherein an aperture is defined by the body at the receptacle, the aperture configured to receive a pin engaging a rail component. 
     
     
         7 . The pistol frame workpiece of  claim 5 , wherein the block element is configured to contact a rail component to deny full insertion of the rail component into the receptacle. 
     
     
         8 . The pistol frame workpiece of  claim 5 , wherein the forward frame portion has opposed elongated upper edges in part defining the upper surface and spaced apart to define an elongated channel having a length and configured to receive an elongated pistol operating component; and further including a web positioned at an intermediate position along the length of the channel, the web spanning between the opposed elongated upper edges to divide the channel into a forward portion and a rear portion, and the web configured to prevent insertion of the elongated pistol operating component.