Fulllength Bolt

Gun Silencer Diagrams

The barrel(s) used in this project require a retaining ring measuring 1 inch in diameter. Therefore a barrel blank with a minimum diameter of I inch must be used. At present, a number of barrel manufacturers offer suitable barrel blanks for this. Most, in fad. idler such blanks with a I-inch diameter and a length of 24 inches. Since these usually come slightly longer than the advertised length, it is possible* to cut four lull 6-inch-length pistol barrels from one of these even after allowing...

Assembly

Before heat-treating and final finishing are performed, the parts should be assembled and any further fitting done as needed. Assembly of the upper unit is begun by inserting the barrel tenon into the forward end of the upper receiver and screwing the barrel shrnud, or fore eiuL in place, which, when tightened against the flange of the- barrel, holds it in place. The front sight is put in place and the retainer pin holes enlarged with a VO taper pin reamer. Corresponding taper pins can be...

M16 Lower Receiver Plan

Ar15 Lower Receiver Drill Hole Images

Cfcunped in place ready far uv*Wing to towei receiver Cfcunped in place ready far uv*Wing to towei receiver At this point all weld joints should be dressed smooth and the entire assembly should be polished, smooth, and free of tool marks. Next the assembly is secured in the milling machine vise, making certain that it is flat nnd level and square with the tabic. Now, using the dimensions given in the drawing, the various holes arc located and drilled. This can be done with complete accuracy...

Heattreating And Finishing

The bolt, as well as the sear, trigger, and trigger bar for the open-bull version, should be heat-treated. This is done primarily to prevent battering, or deformation, and rapid wear. Commercial parts obtained from reputable sources are already heat-treated and require no further attention. Since 1 have discussed the principles of heat treatment in several other volumes, there i* little point in repeating it here. All that is required is Lu thoroughly heat the steel parts to a temperature...

Firing And Adjusting

With the component parts finished and colored to vour satisfaction and reassembled, the project should be ready for test-liring. It might be assumed that since the gun was assembled and semi test-fired hefore heat-treating and finishing and seemed to work the way it was supposed to, it will still do so. Ibis may or may not l gt e the case. Parts sometime grow or otherwise change shape while being heat-treated. This can also happen when certain types of coloring techniques arc practiced. Still...

Most convenient

M16 Lower Parts Diagram

Construction of the barrel is a fairly simple process. The barrel blank is cut to the desired length and the ends are squared in the kithe. Don't be surprised if. once the barrel blank has been cut in two. the bote is not concentric with the outside diameter. I his is a fairly common occurrence, especially with cheaper barrel blanks. II such is the casr, the barrel should be mounted between centers and the entire length turned round. The breech end is then Lurried to a diameter of .875 inch for...

Sights

M16 Schematics Lower Receiver

Sights, as used on the pistol version, arc practically identical to those used on my other pistol designs, differing only in thril the radius at the base is slightly larger. At the risk of being considered repetitious. I will include directions on how to make such sights here for those who don't have my other hooks. Experience has shown me that elaborate adjustable sights are not necessary on the pistol version of this gun. A simple blade front sight and a fixed, square-notched rear, when...

Guns

Holmes Online Ammo

9mm crmverwop nn l mounted on comuteftiul receiver. 9mm crmverwop nn l mounted on comuteftiul receiver. Same unit on shop made lower receiver Same unit on shop made lower receiver Finally, after the local market was satisfied. 1 decided 10 advertise the along with a magazine adaptor and magazine in several national publications. A couple uf gun magazines gave them fav orablc mention, and it wasn't 1 ong before a steady market was created. About this time, though, 1 made a .serious mistake-. I...

Closed Bolt

Depth Micrometer Measues Shoulder

Open bvii ile tf shows JJxed finng pin. Closed bolt 'right i iliuu'b iring pin hole Open bvii ile tf shows JJxed finng pin. Closed bolt 'right i iliuu'b iring pin hole 111e shuri closed holt is made in the same manner and lo the same outside dimensions, except that instead of the fixed firing tin, a .070 inch hole is drilled in ihe cenrer of the bull countcrbore. A No. 50 drill is eorrecr for this. Before the cotinterbore is cut, this hole should be started with a center drill, fed by the tail...

Open Bolt Trigger Mechanism

Trigger Mechanism Plans Wood Homemade

.GS7 PIVOT PIN HOlE SHOULD BE DRILLED THROUGH BOL AND FXTRACTOR SIMULTANEOUSLY. pari should he made slightly oversize and dressed to exact fit during assembly. If i lie closed-boll configuration is adhered to, commercial firing mechanism components, which include a hammer, trigger, disconnector, safety, and necessary spring, arc available from commercial and surplus parts sources. These are available at attractive enough prices to make it more sensible to buy them than to build them....

Magazines

Lower Receiver Dimensions

Por years many of us used Stcn magazines in our experimental assault-type firearms, mainly because they were plentiful and cheap. Apparently they are still plentiful, although the price has gone up. While the existing magazines should probably be used as long as they are available, mainly to save labor, an alternate source of supply should be kepi in mind. This means making them yourself. Although I have, detailed a method for making them in other books, a different method, which is somewhat...

Lowe Receivr

M16 Lower Schematics

As slated earlier, this book was originally intended to encompass only an upper receiver assembly and magazine adapter, which, when installed on a commercial lower receiver assembly, made possible the pistol caliber conversion. But when it became likely that further manufacture of commercial lower receivers would be prohibited when the so-called Crime Bill became law existing lower receivers escalated rapidly in price. I'he las time I checked, the asking price Lor one of these had gone from...

Bolt

9mm Bolt Diagram

While three different holt assemblies arc shown in the following diagrams, they have a common c.cmfiguration as far as the size and shape of the magazine curs, he boll nose, and the extractor cuts. One version is for use in I he open-bolt gun and has a fixed integral firing pin. Another, which is the same length and diameter, is intended to lie contained entirely inside the receiver, making possible a closcd-boJt pistol version. The third is a full length boll intended for usi' with the...

Table Of Contents

Tji Hole Chart

Materials and Tools 1 Upper Receiver 9 Bolt 17 Barrel -25 Barrel Shroud, Stock, and Grip 31 Sights 41 Lower Receiver 5 i Magazines 73 Small Parts 83 Filling and Assembly 95 Heat-Treating and Finishing 99 Firing and Adjusting 103 11 my memory serves me correctly it was in early 1980 that someone suggested lu ine that a Mrnrn conversion unit to mate with and mount on aci AR-15 ur M16 lower receiver assembly would be desirable. A hit of research on my pari indicated thai there was indeed a market...