The original version of the submachine gun (the FBP m/948) only allowed for fully automatic fire. An upgraded version ( designated FBP m/963 ) introduced in 1961 also allowed for semi-automatic fire.

Feb 3, 2025 · The M/948 sub-machine gun or simply "FBP" (named after the factory it was manufactured by) was an intriguing example of sub-machine gun development in an era that would soon become dominated by high-caliber battle rifles.

The Portuguese FBP M948 submachine-gun was designed in the late 1940s by Major Francisco Gonçalves Cardoso, a Portuguese artillery officer. Cardoso amalgamated what he perceived to be the best features of existing submachine-gun designs - …

FBP is a 9 mm submachine gun originally developed from a design first conceived in 1940 by Gonçalves Cardoso, an officer of artillery in the Portuguese Army. The onset of World War II halted development of the weapon, which was further modified and put into production in 1948.

FBP M/948 SMG Parts Kit w/ Original Barrel & Bayonet Lug, Issue Bayonet, Collapsible Wire Stock, Type 2 Demill, 9x19 NATO *Good*

Jul 21, 2020 · An upgraded version of the Portuguese submachine gun, which was designated the FBP m/963, was introduced in 1961 and it offered selective fire.

Aug 18, 2013 · Everything about the FCG, and the cutout where it enters the receiver tube is based on Indianapolis Ordinance ATF approved sten build. (they also have an AFT approved FBP kit). The whole build is on a reduced diameter tube to prevent a full auto bolt from being inserted. http://www.indianapolisordnance.com/index.html

Jul 11, 2017 · Page details technical specifications, development, and operational history of the FBP SMG (Fabrica de Braco de Prata) Submachine Gun (SMG) including pictures.

FBP m/948 submachine gun is a simple blowback weapon that fires from open bolt, in full automatic mode only. The bolt and especially return spring and its external telescoping guide are patterned after the German MP40 submachine gun, although the …