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45 ACP versions were introduced simultaneously. In 1970, the company Ingram worked for, Sionics Inc, was merged into the larger Military Armament Corporation, and there MAC-10 was put into production. The Jersey Arms Works sold 143 completed guns before the company folded in 1984, and the remainder of the unassembled receivers placed in storage.The Ingram Model 10, better known as the MAC-10, named after its producer Military Armament Corporation, is an American open bolt submachine gun designed by Gordon Ingram in 1965. The weapons offered in the ad were built on the receivers that the BATF had determined were machine gun receivers. The ad stated that the S-7 was available as a semiautomatic-only pistol or full-automatic submachine gun, but in either configuration had to be sold as an NFA weapon, requiring a prospective buyer to go through the BATF paperwork procedure. The ad offered the “1st Edition” of the S-7 Avenger.
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During February 1983, Jersey Arms Works ran an ad in the Shotgun News. There were 520 of the New Jersey S-7 Avenger submachine receivers manufactured before they were redesigned, and subsequently approved, by the BATF as semiautomatic pistols. Since the S-7 Pistol was the same design and function as the SAP SM10, the S-7 Avenger was also being classified as a machine gun, regardless of their date of manufacture. The BATF letter stated that the S-7 Avenger pistol was the same (open-bolt) design and function as the SAP SM10 firearm manufactured by RPB Industries, Georgia, which was reclassified as a machine gun by a BATF letter dated. At this time, Hatton Industries had receivers and enough parts to assemble 500 complete firearms. After their examination, the technicians advised the Jersey Arms Company representatives that the S-7 Avenger would most likely be classified as a machine gun, because of the weapon’s open-bolt operation and fire control components. The BATF Technical Branch inspected a sample of the S-7 pistol. The Cobray trademark stamped on the original MAC and RPB receivers was not encircled, and did not include the name Cobray. As stamped on their products the SWD Cobray trademark was enclosed inside of a circle, and had the word Cobray at the bottom, and occasionally included a circled letter ® suffix indicating it was registered. SWD marked all of their products with the Cobray logo, which differed slightly from its original form used by the Military Armament Corporation. 380 caliber submachine gun, also available in a semiautomatic-only pistol configuration. SWD also marketed the M11-A1, a small frame. The new M11/Nine was available in a select-fire submachine gun form, or as a new BATF approved, closed-bolt operated, semiautomatic-only, pistol.
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Under the SWD banner, Wayne Daniel introduced a new, small frame 9mm variation of the basic Ingram design, designating it as the M11/Nine in the summer of 1983. The company was initially located at 1872 Marietta Boulevard, Atlanta, Georgia. Daniel had the manufacturing rights to the Ingram Model 11 submachine gun and the Cobray trademark. Several weeks before RPB was officially out of business one of the former partners, Wayne Daniel, started a new company naming it SWD, officially incorporating on 2 April 1982.