Wooden Forearm

If a rimfire cartridge is intended, move the firing pin location upward the distance necessary to contact the cartridge rim. Bore the firing pin hole with a 1 16 inch drill, followed by a 1 4 inch drill to accommodate the firing pin body and retraction spring. Also drill a 1 8 inch hole to serve as a gas vent from the top center into the firing pin hole. The vent allows gas to escape in the event of a blown primer. A firing pin retainer is also installed to hold the firing pin in place. The...

Frame Template

Magazine Forming Die

To maintain uniform inside dimensions, you must bend the frame blank around a form block. This form block is simply a block of steel with the same width as the inside frame, or .600 inch. It should be at least five inches long and .750 inch or more deep. A suitable form can be made from 5 8 inch x 3 8 inch bar stock by reducing the width a uniform .025 inch (that is from 5 8 inch .825 inch to .600 inch) and rounding the lower edges slightly. Assuming that a big enough vise is available, the...

V

Complete the forging process by flattening the rod just over the hole in the forging block, forming a flange or lip as shown in the diagrams. This flange will hold the takedown lever in place, flush with the pistol frame. Once this step is satisfactorily finished, the piece is allowed to cool, then cut and filed to final shape. Be sure to leave a thicker portion at the outer end of the actual lever, and shape it as shown. Checker or groove this lever with a checkering...

Safety

When all the component parts are finished and semi- polished, the pistol is ready to be assembled and test fired. This step is done before the components are finally heat treated, polished, and blued, because you will likely have to make adjustments on some of the parts before the pistol will function as designed. Prior testing at this point will save the trouble of refinishing and rebluing any parts marred, modified, or scratched during the test. Be sure that all working parts have a smooth...

Magazine Template

Since a proper functioning magazine or clip is crucial to the dependable operation of the semi-automatic pistol, and is also the most difficult part to home-build, I suggest that you purchase a mass-produced magazine in the caliber desired and build the gun to fit around it. At the present time, there are several companies that regularly advertise magazines for almost any caliber and model gun that you care to name. Most sell for eight to ten dollars. That price is considerably cheaper than you...

Breech Block

Pistol Brick Sizes

The breech block or bolt is made from a piece of one inch diameter round stock 2.600 inches in length. Use good quality, tough steel for it. An automobile axle is quite suitable. Turn the rod's forward end to the inside diameter of the slide body, and 1.700 inches long. Its rear end is left the full one inch in diameter, but the top and bottom are ground and filed to the same radius as the forward end, leaving an ear on each side of the breech. These ears are the same diameter as the outside of...

Magazine

Build the .22 and .32 magazines to the same external dimensions as the .380 clip, thereby insuring that they interchange in the frame. Their inside widths should be reduced to .360 inch for the .32 and .250 inch for the .22. The easiest way to do this in the home workshop is to solder sweat or glue epoxy a spacer to the inner wall on each side to reduce its inside width to the proper dimensions. A template of the correct shape is included in the drawings. Also note that the lips at the top of...

Semi Automatic Pistol Design

Semiauto Pistol Drawings

Receiver retaining lug T. Hammer 11. Extractor spring and follower IS. Extractor 1 . Front blade sight IT. Front barrel retainer 24. Disconnector spring spring guide 26. Ejector behind disconnector In this volume, I propose to show two different pistol or handgun designs which can be manufactured in the home workshop. One of these designs is for a semi-automatic pistol, and the other describes a fallingblock single shot pistol. The first one is of necessity...