I.N.A. M953 Submachine Gun Complete Specs and Full Gun Specifications

The I.N.A. M953 Submachine Gun ?was made upon famous Madsen M1946, a 9mm caliber SMG introduced by the Dansk Industri Syndikat, of Copenhagen, Denmark. I.N.A (Industria Nacional de Armas S/A, or Sao Paulo) designed and manufactured their version of Madsen M1946 in caliber .45ACP because that was standard military pistol cartridge in Brazil at that time. The INA is primarily made from heavy sheet stampings. Its body consists of two metal frame, hinged at the rear, which are shaped with integral pistol grip and magazine housing. When closed, the two shells form the receiver unit. The whole thing is held together by the barrel retaining nut, which is threaded into the fore-end of the two halves. To ensure a rigid magazine fit and help hold the body closed, there’s a wire loop at the lower end of the magazine housing. Actually, the left half acts as a lid on the right side of the frame, and carries the two sling swivels, as well as the sights. Unlike the original Madsen M1946s, M1950s, and M1953s, which had the cocking piece on top of the receiver (making it more ambidextrous in nature), the INA had it moved to the right side. The metal tubular buttstock, hinged at the lower end of the pistol grip and at the rear of the receiver, folds to the right side of the gun. Spring-loading alone takes care of keeping it in either position.