SIG SG550

Silhouette (Visual Identification)

Technical Specifications

Category	Assault Rifles
Operating system	gas, selective-fire
Cartridge	5.56 x 45mm / .223 Remington
Length	998 mm
Feeding	detachable, polymer box magazine

The Swiss SIG SG550 assault rifle is based on the SG540. It entered into production in 1981 and is also known as the Fass 90 (Fusil d'assaut 90/Fucile d'assalto 90) in French/Italian or Stgw 90 in German (Sturmgewehr 90). As special attention was paid to making it lighter, the butt, handguard and magazine are largely made of plastic.

Global distribution map

Weapon prevalence

Country of origin

Licensed production

Production without a license

Scale dependend aggregation of production sites

The SIG SG550 is found in 26 countries according to our data.

This map is a reflection of data on global distribution and production provided primarily by the BwVC. It is not exhaustive. If you would like to add to or amend the data, please click here.

Global distribution list

The data on global distribution and production is provided primarily by the BwVC, but also from national and regional focal points on SALW control; data published by think tanks, international organizations and experts; and/or data provided by individual researchers on SALW. It is not exhaustive. If you would like to add to or amend the data, please click here.

Symbol legend

	Country of origin
	Licensed production
	Production without a licence

G	Government: Sources indicate that this type of weapon is held by Governmental agencies.
N	Non-Government: Sources indicate that this type of weapon is held by non-Governmental armed groups.
U	Unspecified: Sources indicate that this type of weapon is found in the country, but do not specify whether it is held by Governmental agencies or non-Governmental armed groups.

It is entirely possible to have a combination of tags beside each country. For example, if country X is tagged with a G and a U, it means that at least one source of data identifies Governmental agencies as holders of weapon type Y, and at least one other source confirms the presence of the weapon in country X without specifying who holds it.