mac 11 380 for sale

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Jane's Infantry Weapons , 15th Edition. Jane's Information Group. Retrieved 11 June Military Armament Corporation. The Mac Man: Gordon B. Ingram and His Submachine Guns.

Open bolt Mac-11, .380 fs/ft...lowered price.

Assault Weapons. Jane's Infantry Weapons Walker Cartridges and Firearm Identification. CRC Press. Gun Digest Books. Official site. Small Arms Review. Tell the cook to lighten up; if the metal has been cleaned in a solvent like MEK or acetone, it won't stink, smoke, or hurt anything!

Should any holes shrink enough in hardening to seize on a drill, polish the hole open with emery cloth or light circular strokes with a small diameter grinding stone in a Mototool or die grinder, fitting the holes to the corresponding pins. The absolute, best way to finish this assembly is on a precision grinder, lightly cleaning-up the top of the bottom plate, then, in assembly, grind the insides parallel to each other careful to stay close to the outside dimension of the frame. Experience shows that 1. To use the drilling jig, simply place the frame in the jig, front to front of jig and locate it with the screw through the tapped sear stud hole from the bottom, and use the forming core or mandrel inside the frame securing it with a clamp to the jig during drilling.

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M-11 380 acp SMG Individual Parts

The steel used for the MAC flats is an alloy It is a bit more resistant to machining drilling and must be drilled with clean sharp drills and a quality cutting fluid. Don't rush this drilling and the holes will be clean, close, and dimensionally stable, assuring proper function of the gun. Be patient and deliberate throughout construction, and be confident that these instructions will work if you take the time to do it right.

To guarantee the best certainty of hole placement, and minimize flex in the sides during drilling, after placing the forming core of the forming die in the formed flat channel, or using the forming mandrel created for that purpose, clamp this assembly in the drilling fixture. Clamp from the top of the forming core to the bottom of the drilling fixture, and locate the sear stud hole through the frame and into the core with the 10 screw as described above.

Drill through the frame on each location penetrating the core block lightly. In the event that more forming is done later, the holes will not interfere at all, nor weaken the core block. Those who do not need the shop cluttered with unneccessary fixtures should procede to the side layout template and transfer the dimensions directly onto the blued up metal with a scriber tool. While the dimensions there are drafted as closely as possible, the print was not intended to be scaled. Builders are advised to transfer the dimensions with vernier calipers or on a surface plate using 'jo-blocks'.

The depth of the rule in a combination square can also be set with precision and scribe directly from the end of it as it is moved along each side, gaging from the bottom of the frame. This same process can be used from the square filed front end to set the length dimensions of the trigger group holes.

Great care must be taken to use a sharp 'prick' punch to set the hole locations. If necessary, use an optical visor, loupe, or magnifying glass to get the punch on location. The holes are then overstamped with a center punch ground to a wider angle. The dimensions to the hole centers is identical on each side, only the hole diameters varying.


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The best way to place the holes in the sides of the frame without the drilling jig is in a milling machine. Notice that front is to the right on the right piece, and to the left on the left piece. Zero on both pieces is located at front bottom. Measurements are 'up' and 'back'. Or, height and length Pay special interest to the pin sizes, especially if experienced in making the M or M some time ago. The rear stock block retaining pin used to be a cold rolled pin inserted with some difficulty.

MAC 10 & MAC 11 Machine Guns

Or, a 'C' clip in the SAP models that had the "semi-auto carraige" captivating thesear pin. Things have changed since Gen. Mitch Warbell ruled MAC. This new pin is an improvement over the old pin, and inserts from the right side. The trigger pin stops on the outside right wall. It now has a low profile rounded head like the stock block retainer pin and it still locks with the clever locking spring wire. Chances are, the guys working on the guns got tired of fighting the trigger spring just to get the locking wire in place.

It is common to forget to start the locking wire which must be in place under the trigger pin to lock it before inserting the trigger pin. It was always remembered just after the fight to get the trigger spring and pin in place. So everything had to come out and be started again. See what you missed if your kit has the new pin?

The new pin is also used in the semi-auto model, but is inserted from the left side in that gun. Some of the pins supplied are still the old design, so be familiar with the difference, as a different size hole in the right side will be necessary for the old pin. These differences are noted in the notes to the side layout templates.

It is apparent that the old style pins were either manufactured for use in either the SMG or the semi, or modified for use in the semi, as they have a locking wire relief ring on both ends. When ordering a kit, some difficulty can be relieved by specifying that the 'new trigger pin' is desired in your kit. Unless the builder prefers the old style pin, which, having no head, is flush to the sides of a properly formed frame. It is supposed to be. This can be easily resolved. Take care to get it cleaned up all the way to the inside of the selector lever boss, which rides against the outside left surface, and keep the file parallel to the pin's surface.

Another solution is to use a letter 'L' drill, which is. Any and all are commonly available at any professional tool supply house, or through one of the tool suppliers listed in the back of this book. Just don't be in a hurry. And, remember why machinists love Mototool! More about fitting and tuning later. If the gun to be assembled is to be a semi-auto only gun, the holes dirilled in the formed flat will differ from the SMG, select- fire models. It is also necessary to place the hammer pin hole to the rear as shown on that drawing.

Since the semi-auto unit cannot use the stock assembly, the rearmost holes can be disregarded. The same regard for the 'old and new' types of trigger pins applies to the semi and SMG models.

Handguns - Semi Auto, Revolver, Single Shot | Sportsman's Warehouse

If the flats being used are handmade, it will be necessary to put in the stock latch pin holes at the rear, if the stock is to be installed. Using '" as the nominal flat thickness, the height is. The height of the hole is the critical dimension. This pin is nothing more than a stop for the stock latch assembly. It's proper dimension is. Deburr all holes drilled inside and out with a flat file or the Mototool and check the pins for fit and alignment of pins from hole to hole.

Minor dressing of the front upper receiver connector pin holes will be done after the 'front tabs' are welded in place. It is really a waste of time until then. Misalignment is pretty common, but is seldom excessive.


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  • The differences are obvious. This position is critical to the proper function of the gun. It is also the only area in the entire relief in the bottom for the magazine, trigger guard and trigger clearance that is critical. The face of the relief that gages the forward position of the trigger guard is the most important. If the frame has been properly formed, and the inside dimension held close, the width of the outward shoulders on the trigger guard where it is formed for the chambering ramp will effectively hold it on center to it's proper position.

    The front face of the relief must be carefully measured, scribed and filed in place. If the face is a little wide, it is of no consequence, so long as it is kept centered, but it is still best held very close. Distances between the edge of the relief and the outsides of the frame should be frequently checked during the filing to keep them identical. Do not cut forward of the scribe line gaging that position of the guard. If the reader buys a bent center section, as is available from suppliers, and the rear is cut off just behind the rearmost stock block mounting hole, this can be used as a template to lay out the bottom of the frame.

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    Care must still be used however, in cutting in the triggerguard relief. First, the entire relief areas are roughed in leaving them a little small in all directions. The trigger clearance slot can be cut to size, but left a little short. It doesn't have to be square, and can be left round if the roughing work is done on a mill. In this case, take it to size.

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    A little over doesn't hurt. The magazine well is best left undersized and cut to size after the magazine housing is welded in place. Just make enough room to work in it. Some prefer to precisely cut it to shape and size and use a metal magazine to align the magazine housing for welding. Experience has not proved the value of this procedure. A simple jig for welding will be explained in chapter four.