Fábrica de Itajubá’s first SMG prototypes – Part 2
The next evolutionary step in 9x19mm submachine gun design by Itajubá Factory’s Prototypes Workshop was very trivial, indeed, and took the form of replacing the initial, somewhat clumsy, shaped-wire folding stock with a tubular model somewhat based on the model used in the PARA-FAL rifle. Offering a much firmer shoulder-firing support, it folded very neatly to the right side of the FI/70, which otherwise remained mechanically unchanged.
By the first half of 1978, or so, the guys at the Prototypes Workshop decided to give the FI/70 a second look, the emerging design being called the MOD. C.E.70. Although bearing a general external look similar to the first prototypes, it did incorporate significant changes, including the repositioning of the reciprocating cocking handle to the left side and giving the actuating knob an elevated profile so as to make it more ambidextrous in nature. The fire selector took the form of a small transversal button situated near the forward end of the trigger guard: when pressed to the left, it locked the firing mechanism; to the right, it allowed automatic fire (the gun was full-auto-only). The magazine catch became a small inward-pressing button on the right side of the magazine housing, while the bolt-locking grip safety lever was preserved. Basic barrel and overall dimensions were also maintained from the previous examples, but the bolt’s weight and travel distance within the cylindrical receiver were slightly increased in an effort to reduce the gun’s innate elevated cyclic rate of fire. A figure of around 900 rpm was eventually achieved, but, it was still too high.
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November 8, 2017 at 01:01PM