FAMAE SAF
The FAMAE SAF is a submachine gun produced since 1993 by FAMAE (Fábricas y Maestranzas del Ejército), the Chilean government small arms factory. It is in service with the Chilean armed forces and police and is exported.
The Paramilitary Police, gendarmerie type, Portuguese Republican National Guard (GNR - Guarda Nacional Republicana) and the Prison Guard (Guarda Prisional) both use the FAMAE SAF. The GNR is thought to have both some 4500 weapons, replacing older submachine guns and, partially, the G-3 battle rifle in public order maintenance activities.
Design
The SAF is a blowback-operated select-fire gun, firing from a closed bolt. It is based on the Swiss SIG SG 540 assault rifle which was produced under license in Chile in the 1980s. In general the design is a shortened version of the SIG 540 rifle, but the rifle's rotating bolt has been replaced with a simple blowback bolt. The SAF also has a bolt hold-open catch that engages after the final shot. Otherwise, the receiver, stock, fore-end, trigger/hammer assembly and floating firing pin design are from the SIG 540. The upper and lower receiver, as well as the trigger guard are steel, pistol grip and Handguards are all made from polymer. The ambidextrous safety/fire selector switch, as well as the interchangeability with SIG 552/553 handguards, is a feature found on the latest versions. Older versions used own handguards.