AUTOWEAPONS. COM ALL FIREARMS IN THIS SECTION ARE FULLY TRANSFERABLE ALL MANUFACTURED BEFORE 1. DOMESTIC SALES ONLY ALL NFA RULES APPLYMAC 1. WikipediaMac 1. For the computer operating system, see Mac OS X. For the rapper, see Mack 1. For the less notable rapper, see Totally Insane. Stephen Grant Sons Woodcock Hill Side, Side Lever 12 Gauge Side By Side Shotgun. Full restoration by T. R. White Co. Tony White 28 Barrel Length. The Military Armament Corporation Model 1. M1. 0 and M 1. MAC 1. Gordon B. Ingram in 1. It is chambered in either. ACP or 9mm. A two stage suppressor by Sionics was designed for the MAC 1. 508 Source Client List. The M1. 0 was built predominantly from steel stampings. A notched cocking handle protrudes from the top of the receiver, and by turning the handle 9. The M1. 0 has a telescoping bolt, which wraps around the rear face of the barrel. Mid.1014573_13_1.jpg' alt='Cobray M11 /9 Semi To Full Auto Conversion Manual' title='Cobray M11 /9 Semi To Full Auto Conversion Manual' />This allows a more compact weapon and balances the weight of the weapon over the pistol grip, where the magazine is located. The M1. 0 fires from an open bolt, and the light weight of the bolt results in a rapid rate of fire. In addition, this design incorporates a built in feed ramp as part of the trigger guard a new concept at the time and to save on cost the magazine was recycled from the M3 Grease Gun. The barrel is threaded to accept a suppressor, which worked by reducing the discharges sound, without attempting to reduce the velocity of the bullet. This worked well with the. ACP versions, as most loads are subsonic already, as opposed to special, low powered subsonic loads usually required for suppressed 9mm weapons. At the suggestion of the United States Army, the suppressor also acted as a foregrip to inhibit muzzle rise when fired. Ingram added a small bracket with a small strap beneath the muzzle to aid in controlling recoil during fully automatic fire. The original rate of fire for the M1. That of the 9mm M1. MAC 1. 1 in. 3. Browse all new and used Sig Sauer Pistols for sale and buy with confidence from Guns International. ACP is 1. 38. 0 rounds per minute. Noting the weapons poor accuracy, in the 1. International Association of Police Chiefs weapons researcher David Steele described the MAC series as fit only for combat in a phone booth. SuppressoreditThe primary reason for the original M1. Mitchell Wer. Bell III of Sionics. This suppressor had a two stage design, with the first stage being larger than the second. This uniquely shaped suppressor gave the MAC 1. It was also very quiet, to the point that the bolt could be heard cycling, along with the suppressed report of the weapons discharge however, only if subsonic rounds were used standard. ACP rounds are subsonic. The suppressor when used with a Nomex cover created a place to hold the firearm with the secondary hand, making it easier to control. During the 1. 97. United States placed restrictions on the exportation of suppressors, and a number of countries canceled their orders of M1. MAC 1. 0s suppressor was one of its main selling points. This was one factor that led to the bankruptcy of Military Armament Corporation, another being the companys failure to recognize the private market. The original Sionics suppressor is 1. NomenclatureeditThe term MAC 1. Military Armament Corporation never used the nomenclature MAC 1. MAC 1. 0 became so frequently used by Title II dealers, gun writers, and collectors, it is used more frequently than M1. Firing the suppressed Ingram MAC 1. Calibers and variantseditWhile the original M1. ACP or 9mm, the M1. MAC 1. 1 M 1. 1A1, which is a scaled down version of the M1. ACP 9x. 17mm and the M 1. M 1. 1 with a longer receiver chambered in 9x. SWD Sylvia and Wayne Daniel, Leinad and Vulcan Armament. In the United States, machine guns are National Firearms Act items. As Military Armament Corporation was in bankruptcy large number of incomplete sheet metal frame flats were given serial numbers then bought by a new company, RPB industries. Some of the previously completed guns already stamped MAC, were stamped on the other side RPB, making a double stamp gun. RPB Industries made many open bolt semi automatic and sub machine guns before the Bureau of Alcohol Tobacco Firearms and Explosives abbreviated BATFE seized roughly 2. BATFE insisted that all future semiautomatic versions were to be manufactured with a closed bolt design as the open bolt semiautomatics were considered too easy to illegally convert to full automatic operation. Wayne Daniel, a former RPB machine operator, purchased much of their remaining inventory and formed SWD, designing a new weapon which was more balanced, available either fully or semi automatic with his new BATFE approved closed bolt design. There are several carbine versions of the M 1. Cobray and SWD manufactured a smaller version chambered in. ACP as a semiautomatic pistol called the M 1. Today, while the civilian manufacture, sale and possession of post 1. MAC 1. 0 and variants is prohibited it is still legal to sell templates, tooling and manuals to complete such conversion. These items are typically marketed as being post sample materials for use by Federal Firearm Licensees for manufacturingdistributing select fire variants of the MAC 1. Accessories and aftermarket itemseditLage Manufacturing makes a variant, called MAX uppers. The company is based in Chandler, Arizona. The MAX upper can reduce the original rate of fire to about 6. RPM. 4. 5 ACP and 7. RPM 91. 9mm. The upper adds a picatinny optic rail, a side cocking charging handle, and a forend. Lage Manufacturing is currently marketing a drop in. LR caliber conversion upper variant for the M1. A and Max 1. 1. Alliance Armament is making slowfire uppers that accept unmodified Suomi 3. They also produce a 7. Tokarev. PPSh 4. Besides Military Armament Corporation, MAC 1. MAC 1. 0 parts have been produced by RPB Industries as well as complete guns. Another company was Leatherwood Texas MAC,1. Cobray CompanySWDLeinad,1. Jersey Arms Works,1. Master. Piece Arms,1. Section Five Firearms 1. Vulcan Velocity Arms, V series. U. S. editThe semiautomatic civilian version of the MAC 1. Assault Weapons Ban. The ban enacted various requirements that defined an assault weapon. The MAC 1. 0 was named directly in the ban,1. A semiautomatic version of an automatic firearm, and. A manufactured weight of 5. The MAC 1. 0 weighed 1. Additionally, the firearm had a threaded barrel to allow installation of a suppressor, and the magazine capacity was 3. In response, Wayne Daniel redesigned the M 1. Assault Weapons Ban mandated. The new firearm was called the PM1. Foreign copies and derivativeseditThe BXP is 9 mm submachine gun developed in the mid 1. South African company Mechem currently a division of Denel, formerly under ARMSCOR and brought into production in 1. Due to international arms embargoes of Apartheid South Africa, the country was forced to design and manufacture their own weapons. The weapon was intended for use by security forces. The manufacturing rights shifted from hand to hand several times during the years, passing from Mechem to Milkor Marketing and later to Truvelo Armoury, the current manufacturer as for 2. Cobra carbineeditThe Cobra carbine is a semi automatic firearm of Rhodesian origin manufactured during the Rhodesian Bush War Era as a self defense weapon for farmers and is chambered for the Parabellum round. The layout of this weapon is somewhat based on the Uzi submachine gun. Patria submachine guneditThe Pistola Ametralladora Patria is a close copy of the MAC 1. South African BXP. It was developed by Major Luis Ricardo Dvila, of the Argentine Air Force, and protected by national Patent n 2. It uses 9mm caliber rounds for easy transportation, and can be operated in either hand.