UNFINISHED FIREARM FRAME AND JIG
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.
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This application is a Continuation of U.S. patent application Ser. No. 16/808,115 filed on Mar. 3, 2020, entitled “UNFINISHED FIREARM FRAME AND JIG,” which is a Continuation of U.S. patent application Ser. No. 15/616,537 filed on Jun. 7, 2017, now issued as U.S. Pat. No. 10,612,870, entitled “UNFINISHED FIREARM FRAME AND JIG,” which claims the benefit of U.S. Provisional Patent Application No. 62/346,600 filed on Jun. 7, 2016, entitled “Process to Create an Unfinished Pistol Receiver,” which are hereby incorporated by reference in their entirety for all that is taught and disclosed therein.
FIELD OF THE INVENTIONThe present invention relates to firearms, and more particularly to unfinished firearm frames.
BACKGROUND OF THE INVENTIONThe assembly of firearms from parts instead of purchasing a complete firearm has become popular with the purchasers of firearms. It has become a hobby that allows the firearm to be customized with the desired features by the purchaser. When a purchaser buys a completed firearm from the dealer, that purchaser usually ends up spending more money on customizing the firearm, while discarding parts that originally were part of the firearm. Popular changes to completed firearms are trigger replacement, barrel replacement, sight replacement and weight reduction modifications.
One of the parts of the firearm is always engraved with a serial number and registered with various government agencies. The registered part is generally considered as the firearm for registration purposes and is usually the receiver or frame of the firearm. The purchaser can purchase only the registered part and build a firearm by purchasing the other required parts to complete the firearm. Under the law in most jurisdictions, a purchaser can machine a firearm without registration of that part that is normally registered. The unregistered machined part usually has restrictions from sale to others and must remain with the person who machined the unregistered part. If a transfer of the unregistered part takes place, the normal federal firearms regulations which include serialization, registration and background checks are required to be performed on the recipient of the firearm. An issue with machining the firearm from scratch is that most purchasers do not have a machine shop or the skills to machine such parts.
Machine shops and polymer manufacturers can manufacture firearms receivers up to a point of incompletion, that allows them to sell the unfinished frame to customers, who then proceed to finish the frame for their personal use. Under the federal law, if the part is only completed eighty percent or less of the effort to provide a completed part that requires registration, the part is considered not being a firearm. It should be noted that the “80%” description is not recognized by the ATF as an official technical term, but is understood as a classification or description of the type of component that is being produced within the firearms industry. The part being classified as a non-firearm allows the part to be sold by manufacturers without violating the law.
It is an object of the present invention to provide an unfinished firearm frame that can be completed by a purchaser.
SUMMARY OF THE INVENTIONAn unfinished firearm frame including areas adapted to install firearm parts to finish the unfinished firearm frame. The frame having a top adapted to receive a slide. Where there is at least one rear restriction protrusion extending from the top of the frame near a rear of the frame which restricts addition of the slide to the frame and at least one front restriction protrusion extending 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.
Embodiments of an unfinished firearm frame for building a firearm are disclosed.
The unfinished frame 10 does not include three of the required pin holes for assembly the unfinished frame 10 into a firearm. The unfinished frame 10 includes four restriction protrusions that prevent a slide of the pistol to be attached to the unfinished frame 10.
The jig 20 includes a first pin hole guide 34, a second pin hole guide 36 and a third pin hole guide 38 on each of the right half 22 and left half 22 of the jig 20, as shown in
The unfinished frame 10 is finished by inserting the unfinished frame 10 in the jig 20 and clamping the jig 20 in a vise. The first pin hole, second pin hole and third pin hole are all drilled by the correct corresponding drill bit using the pin hole guides 34, 36, 38. Each hole is drilled from each the right half 22 and the left half 24 of the jig 20 into the unfinished frame 10, instead of drilling one time from one side of the jig 20 and through the unfinished frame 10 onto the other side of the jig 20. The front restriction protrusions 12 and the rear restriction protrusions 14 are removed using the removal guide surface 44. Typically, a milling machine tool is used for removal of the front restriction protrusions 12 and the rear restriction protrusions 14. The removal guide surface is used to prevent too much material from being removed. Finally, the recoil assembly block 16 is removed by inserting an end mill against the recoil assembly block 16 from the direction of the recoil assembly cutout 46 and using the cutting guide edge 18. The cutting guide edge 16 is used to prevent too much material from being removed.
A pistol frame includes slide rails on the top of the frame to receive and locate the slide of the firearm onto the frame. The slide rails are milled or formed as part of the pistol frame by pistol manufacturers. Polymer pistol frames typically have two front rails and two rear rails. The first embodiment includes the use of a locking block rail insert 48 and a rear rail insert 50, as shown in
While different embodiments of the invention have been described in detail herein, it will be appreciated by those skilled in the art that various modifications and alternatives to the embodiments could be developed in light of the overall teachings of the disclosure. Accordingly, the particular arrangements are illustrative only and are not limiting as to the scope of the invention that is to be given the full breadth of any and all equivalents thereof.
Claims
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.
Type: Application
Filed: Apr 1, 2022
Publication Date: Jul 21, 2022
Applicant: Polymer80, Inc. (Dayton, NV)
Inventors: David Borges (Fairfield, CA), Loran Kelley (Carson City, NV), Grant Griffard (Soquel, CA), Michael Guttridge (Dixon, CA)
Application Number: 17/711,096