Fallout 4 chinese assault rifle mod series#

The trigger pull is approximately 35 N (7.9 lb f)

The trigger is enclosed in a pivoting trigger guard which can be folded down to the left or right side allowing for unhindered operation with winter gloves. The 3-round burst mode '3' and the fully automatic '20' position can be disabled by a rotating safety guard to avert accidentally activating the continuous fire mode. The rifle is hammer-fired and has a trigger mechanism with an ambidextrous safety and fire selector switch that has 4 settings: 'S'-safe, '1'-single fire, '3'-3-round burst and '20'-fully automatic fire. The rifle controls, including fire selector/safety. A spring-loaded extractor is incorporated into the bolt while a fixed protrusion on one of the receiver's internal guide rails ejects the spent cartridge casings. The rotary bolt locking mechanism consists of two steel locking lugs that engage locking recesses in the breech, and is identical to that used in the SG 540. The manually adjustable gas valve has two settings, one for normal operation, and the second setting for use in the presence of heavy fouling or icing. Surplus gas and powder residues are evacuated through an exhaust port in the gas cylinder. As the piston is driven back, the gas port and the L-shaped channel move out of alignment, cutting off the supply of gas to the cylinder. The pressure build-up in front of the piston head pushes the piston and bolt carrier rearward. Once inside the gas cylinder, propellant gases pass through an L-shaped channel machined in the piston head and are directed forward towards the gas valve.

Fallout 4 chinese assault rifle mod series#

It has a gas-actuated piston-driven long-stroke operating system derived from the SIG SG 540 series of rifles, which uses burnt powder gases vented through a port in the barrel to power the weapon's moving parts. The SG 550 is a selective-fire 5.56Г—45mm NATO assault rifle firing from a closed bolt. SG 550 disassembled into its main constituent groups In 1981, the experimental 6.45mm GP 80 cartridge was rejected in favor of the more conventional 5.6Г—45mm GP 90 round (with a 4.1 g, tombac-jacketed, lead core projectile) that is the Swiss equivalent to NATO's standard 5.56Г—45mm cartridge. The solicitation was narrowed down to two designs: the W+F C42 (developed by the state-owned Waffenfabrik Bern, using both 6.45Г—48mm and 5.56Г—45mm cartridges) and the SG 541 (developed by SIG).

Another aim was to reduce the overall weight of the rifle while retaining comparable or improved accuracy out to 300 m. Emphasis was placed on modularity the weapon family was to include several variants of the base design, including a compact carbine that would be issued to rear-echelon and support troops, command staff, vehicle crews, special forces personnel and paratroopers. In 1978, the Swiss armed forces formulated requirements for a successor to the Stgw 57 battle rifle (known commercially as the SG 510) using the 7.5Г—55mm SchmidtвЂ“Rubin cartridge. The rifle is based on the earlier 5.56Г—45mm NATO SIG SG 540. 'SG' is an abbreviation for Sturmgewehr ('assault rifle'). The SG 550 is an assault rifle manufactured by Swiss Arms AG (formerly a division of Schweizerische Industrie Gesellschaft, now known as SIG Holding AG) in Switzerland. Rear: rotating diopter drum with tritium night inserts front: hooded post with folding night post

5-, 20-, or 30-round detachable box magazine.

5.56Г—45mm NATO (known as 5,6mm Gw Pat 90 in Switzerland).

Swiss Arms AG (formerly Schweizerische Industrie Gesellschaft) The SIG SG 550, designated Stgw-90 (German) or Fass-90 (French) in the Swiss ArmyДЄssault Rifle (SIG550, SIG551, SIG552, SIG553 & SIG552 A1)Дesignated Marksman Rifle/ Sniper Rifle (SIG550 Sniper)