Service record
Service period: 1986 till now.
Users include Switzerland, Chile, Indonesia, France, Spain and the United States.
Production history
Date of development: 1970s
The manufacturer is SIG Arms AG.
Main technical specifications
Total weight 4.05 kg (empty gun)
The total length is 998 mm.
772 mm (butt folding)
The barrel length is 528 mm (20.8 inches).
Operator number, individual soldier
Ammunition Gw Pat.90 5.6 mm,
5.56 NATO
Caliber 5.56
Bolt types: pneumatic and rotary bolts.
The launch speed is 700 rounds per minute.
The initial velocity is 905 m/s
The effective distance is 600 meters (about 650 yards)
The maximum distance is 600 meters.
Ammunition supply mode
SIG SG 550 (Sturmgewehr 90) is an assault rifle designed and manufactured by SIG Arms. It is considered to be the most accurate of mass-produced assault rifles. Use folding stock, with folding tripod, gun design is similar to AK-47, translucent magazine. It is called Fass 90 (Fusil d'assaut 90) in France and Stgw 90(Sturmgewehr 90) in Germany. .
Gun name: SIG-550
Introduction of firearms:
1853, Friedrich Pyle Inhof, Heinrich Mo Ze (Heinrich
Moser) and Conrad Neher started production in Neuhausen near Rhine Falls.
At that time, they didn't know that their company would eventually become a world-famous light weapons manufacturing company.
Seven years later, they built a large production workshop to make more complicated trucks and train carriages. At this time, three males
The energetic partner started a bigger adventure. According to the requirements of the Swiss Federal Ministry of Defence, the Swiss carriage factory opened.
I began to participate in the competition to develop new rifles, hoping that the Swiss army would adopt them.
Four years later, the Prelaz-Burnand rifle produced by Swiss carriage factory was ordered in Switzerland. That's it, Swiss horse
The car factory got an order to produce 30,000 rifles, so they put the name of the company.
Later, it was renamed schweizer ische industrial e-Gesellschaft, and now it is SIG.
By the 20th century, SIG has developed into a large Swiss industrial company, with its headquarters in Newhausen. Siggon
Division consists of six divisions: 1. Power transmission and control department, design and manufacture electro-hydraulic and electro-pneumatic drive systems, and specialize in.
Use control devices and interfaces, 2. Manufacturing and mining machinery department, designing and manufacturing mining ores, digging tunnels and tunnels.
Mechanical and underground transport vehicles, 3. Packaging machinery division, designing and manufacturing all kinds of packaging machinery, 4. Vehicle sector, design and
Railway passenger car and freight car manufacturing. Cooperation service department, responsible for domestic and foreign cooperation and service matters, 6. The light weapons sector, that is,
Siarms designs and manufactures all kinds of lamps together with Hammerli and SAUER subsidiaries of the company.
Weapons.
1988, SIG company developed SG550 sniper rifle based on SG550 assault rifle. The SG550 sniper rifle is actually
It is a single-shot SG550 assault rifle with a heavy barrel, but SIG emphasizes that SG550 sniper rifle is used for police and special purposes.
It was successfully developed with the close cooperation of the army. After a rigorous and thorough functional and accuracy test, the military facilitates large-scale procurement as a tactic.
Sniper rifle. The gun has two calibers, SG550- 1 for firing 5.56×45mm NATO bombs and SG 550- 1 for firing 0.223 Remington bombs.
SG550-2 .
Structural features:
1984, SIG company began to provide Stgw90 assault rifles to the Swiss army to replace the original rifles used by the Swiss army.
STGW 57 (SG510). The export type of STGW 90 has two numbers, one is SG550 standard assault rifle and the other is
SG55 1 short barrel assault rifle. SG550/55 1 is a traditional structure, similar to FNC and AK, and it is a long-stroke air guide.
Plug in automatic mode. The biggest feature of SG550/55 1 series is that a large number of engineering plastics are used to improve and reduce the weight, and they are transparent.
The two sides of the magazine are attached with magazine connecting bamboo shoots, so that multiple magazines can be conveniently connected in parallel without additional equipment.
Now the G36 series of HK Company in Germany also adopts similar magazines. But both SG550/55 1 and G36 series are not allowed.
Use NATO standard magazine.
As an excellent semi-automatic guided sniper rifle, the high precision of SG550 sniper rifle benefits from heavy hammer and precision gun.
Tube+extremely sensitive two kinds of fire triggering force, the new bipod can ensure the smooth rotation direction, and the heavy pike tube allows SG550 to snipe.
The weight of an assault rifle is greatly increased compared with that of an assault rifle, with the advantage of reducing the vibration when shooting.
Performance data:
Rifle -6, right hand, winding distance 254 mm.
Capacity -20 rounds
Ammunition supply mode-ammunition depot
Launch mode-single launch
Total mass of gun-7.02kg (excluding magazine)