This fourth assessment of the first 9x19mm submachine guns to come out of Brazilian Army’s — and IMBEL’s, after 1975– Fábrica de Itajubá (Itajubá Factory) will be somewhat of a flashback to the early 1970s. I have skipped the actual timeline back because the weapons involved here were quite different from the previously-described models of the mid-to-late seventies. It just so happened that in 1971 the guys at the facility’s Oficina de Protótipos (Prototypes Workshop) appeared to have given a better look at Israel’s Uzi buzzgun and decided to come out with a weapon with the same magazine-in-central-pistol-grip configuration.
The first prototype was designated FI Modelo 1971 (aka CE-971), an entirely conventional blowback-operated SMG that fired from the open bolt position and featured a cylindrical receiver and an involving bolt with a fixed striker. The fixed (reciprocating) cocking piece was a small cylindrical job that projected upward at about 45 degrees to the left, while the ejection window was to the right at about the same angle.
A small rectangular lower receiver housed the firing mechanism and possessed a lookalike Uzi selector switch with the settings “S”, “R”, and “A” in a back-to-front sequence on the left side, while the magazine catch on the lower pistol grip was no less inspired. Yes, a safety lever was also present at the rear of the pistol grip… “Shalom!” The forward end of the gun received a wooden handguard of cylindrical shape, a foldable tubular stock allowing the reduction of the overall length from 690 to 430mm (the barrel was 250mm long). Weight? About 3.5kg.
The single CE-971 was followed by a subsequent CE-971A1 (aka CE-71A1), this having “Safe” and “Automatic” settings, only, for the switch-type fire selector placed on the left side, above the trigger. It had the same 250mm barrel, the reported cyclic rate of fire being in the region of 900 rounds per minute. Another distinguishing characteristic was the slightly conical profile of the handguard.
Higher-res pics here: https://imgur.com/a/w8VwZ