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.

The FMBP-48 is an early Cold War era sub machine gun of Portuguese origin. It is named after the year of introduction and the factory "Fabrica Militar de Braco de Prata", also known as FBP. The original design was patterned after the MP40.

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.

Unusual for submachineguns, the m/948 was fitted with a barrel sleeve with a mount to accept the standard Portuguese Mauser bayonet. The weapon was primarily issued to officers and NCOs in the Portuguese Armed Forces and security forces, along with quantities of ex-German MP 34 submachine guns.

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 - …

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.

The FBP/948 was the Portuguese military’s first attempt at developing a domestically designed and manufactured sub-machine gun. Its design was finalized immediately after World War Two, with many of the parts and mechanisms being influenced by other contemporary sub-guns.

Feb 3, 2025 · Weighing 3.77 kilograms (8~ pounds in freedom units) and chambered in 9x19 Parabellum it utilized a simple open-bolt blowback action. It was most notably characterized by its inspiration or downright copying from (then) contemporary sub-machine guns.

Oct 13, 2019 · FBP internals, bolt and spring housing, are a direct copy of the MP40 except the FBP bolt has a fixed firing pin in the bolt face. FBP magazines also are copies of the MP40 types. FBP parts are commonly used by MP40 owners to replace their vintage bolt and spiring housing to preserve the originals.