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MAC-10 Talk; If this is your first visit, be sure to check out the FAQ by clicking the link above. You may have to register before you can post: click the register link above to proceed. To start viewing messages, select the forum that you want to visit from the selection below. The Envirco® MAC 10 fan filter unit, was the first (FFU) to combine low sound, low watts and a low profile. Measuring only 51 dBA, the MAC 10 Original Standard (2 ft x 4 ft 600 mm x 1,210 mm) provides one of the lowest sound levels of any FFU in the industry.
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Specifications
Manufacturer(s): Military Armament Corporation - USA
Roles: Clandestine Operations; Close Quarters Battle (CQB)/Personal Security;
Caliber(s): .45 ACP; 9x19mm Parabellum; .380 ACP
Sights: Iron; Optional Scope Mount
Overall Length: 269 mm (10.59 in)
Barrel Length: 146 mm (5.75 in)
Weight (Unloaded): 6.26 lb (2.84 kg)
Rate-of-Fire: 1,146 rounds-per-minute
Effective Range: 164 ft (50 m; 55 yd)
The Ingram MAC-10 (M10) was a short-lived, compact submachine gun initiative seeing limited production and equally-limited action across the globe. While introducing some impressive and interesting concepts, the weapon system failed to materialize as a serious contender within the established submachine market and was soon overtaken by other factor out of her control. The weapon system was not helped by the American military's decision to pass on full production orders and her future was ultimately decided for her with the collapse of her host company, Military Armament Corporation (MAC - hence the 'MAC-10' designation). Despite the widely-accepted designation of 'MAC-10', the submachine gun was officially marketed as the 'M10' and the former identifier was never used in any official capacity. However, it has since become universally accepted as the 'MAC-10' and nothing more.
MAC-10 Origins
Design of the MAC-10 began as early as 1964 by Gordon B. Ingram. Ingram was a former associate at the Police Ordnance Corporation before leaving to develop the MAC-10. He partnered with Mitchell Werbell III, a former OSS and CIA operative and founder of SIONICS (Studies In the Operational Negation of Insurgents and Counter-Subversion) - a firm centering on the development and sales of firearm-capable suppressors and silencers and their partnership produced the Military Armament Corporation (MAC). Their joint venture and flagship product was to become the MAC-10 with the ultimate hope being quantitative sales to the US military during the ongoing Vietnam War.
To the casual observer, the MAC-10 showcased a design not unlike the Israeli-made UZI series (as well as other submachine guns that have mimicked this general design layout). The submachine gun was characterized by a rectangular receiver fitting a simple straight pistol grip that doubled as the magazine feed. There was a rounded-rectangle trigger ring ahead of the pistol grip and below the forward portion of the receiver. The safety catch was set to the right of the trigger guard. Construction was of steel stampings and the bolt was of a wrap-around - or telescoping - design, essentially 'wrapping around' the barrel and allowing the MAC-10 to achieve such a short receiver length and thus remain a compact weapon system. These design elements made for a steady gun platform, concentrating the firing action balance just over the pistol grip. The cocking handle was situated along the stop of the receiver and accessible by either hand. Interestingly, there was a notch cut through the handle to ensure an unfettered line-of-sight between the operator, the weapon and his target. The cocking handle also doubled as a safety for it could be turned in a 90-degree action to lock the bolt and serve as a visual indicator that the weapon was made safe and unready to fire. The firing action was accomplished through an open bolt, blow-back operated design. A rather large ejection port opening was fitted along the right side of the receiver, corresponding to the placement of the magazine beneath it. A short sling could be attached to a hook at the front panel of the receiver.
It's All in the Barrel
Perhaps the most unique of all the MAC-10 features was its threaded barrel. The thread - similar to a bottle's top - was clearly visible just passed the forward portion of the receiver front and aft of the short protruding barrel. This was to support the Werbell-designed sound suppressor (a device different than a silencer). The sound suppressor could simply be screwed on over the threads for a tight fitting and allowed the operator to fire his weapon without the bullet velocity loss, a drawback inherent in a silencer. While not truly a 'silenced' weapon, the firing action of a suppressed MAC-10 was akin to that of small 'crack' sound, helping the operator still maintain some element of surprise or concealment from an alert enemy.
The suppressor used in the MAC-10 had a two-stage design clearly seen in available photography. The first stage offered a large cylinder that fed into a longer, slimmer cylinder. The resulting design proved a very quite sound suppressor when in practice and could efficiently double as a foregrip in adding additional close-quarters, two-handed stability to the submachine gun. Weighing in at just 1.20 pounds, the 11.44-inch suppressor system did not increase the weight of the MAC-10 by much, making the complete system quite manageable to handle, even if firing the weapon with one hand.
The MAC-11
The MAC-11 existed as a near-identical version of the base MAC-10 save for its overall smaller dimensions and its chambering for the 9mm 'Short' cartridge. The intent with this design was to market it for interested police and security forces already making use of the 9mm Parabellum cartridge but in need of the firepower inherent in a compact submachine gun body. The MAC-11 fired the smaller caliber cartridge through a 32-round detachable box magazine. Muzzle velocity was reported at 1,201 feet per second while rate-of-fire was roughly 1,090 rounds per minute.
Success Proves Elusive
Success for the MAC-10, as a series, proved quite elusive during her tenure. The submachine gun was showcased by a few, usually special, groups around the globe including the United States Navy SEALs during the Vietnam War from 1970 to 1976. Military Armament Corporation proved to be underfunded for the venture and soon went into bankruptcy. Additionally, recent restrictions were placed on the exporting of sound suppressors to foreign markets. Since the suppression capabilities of the MAC-10 were one of its major selling points, interest parties on the global stage soon backed away from potential purchases and some orders in process were cancelled outright once the export restrictions were announced. Military Armament Company went out of business in 1976. The MAC-10 design, however, lived on as it was passed from firm to firm, each attempting - in turn - to profit from the unique submachine gun. None were able to save the MAC-10 and production of the system concluded in 1986.
While an innovative weapon in its own right, and the unaccredited star of several Hollywood productions (including several television appearances), the real-life MAC-10 failed to have the commercial impact that was expected despite her popularity in premiere circles.
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Variants / Models
• MAC-10 'Military Armament Corporation Model 10' - Base Designation.
• MAC-10/9 - Chambered to fire the 9mm cartridge; based on the MAC-10.
• MAC-11 - Smaller version of the MAC-10; chambered to fire the .380 ACP cartridge.
• MAC-11/9 - Lengthened receiver; based on the MAC-11; chambered to fire the 9mm cartridge.
• M10 - Official Company Designation of the MAC-10
• M11 - Official Company Designation of the MAC-11