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Caliber: 5.56x45 mm (.223 Remington)
Action: Gas operated, rotating bolt
Overall length: 960 mm (810 mm when butt folded)
Barrel length: 460 mm
Weigth: 3.68 kg with empty magazine
Rate of fire: 700-900 rounds per minute
Magazine capacity: 30 rounds standard (any M16-type magazine will fit)
The SR-88 assault rifle was developed by Chartered Industries of Singapore in the late 1980s. This rifle, also available in carbine version, with shorter barrel and floding buttstock, have seen limited service with Singapore army and was mostly sold for export. At the present time the production of the SR-88 is terminated and it is being replaced in Singapore army by SAR-21 bullpup assault rifle.
SR-88 is a conventional, selective-fire, gas operated rifle. It uses long piston stroke action with rotating bolt, gas piston and gas cylinder are cromium-plated. Gas system featured three positions gas regulator - two open positions, for normal and harsh conditions, and one closed, for launching of the rifle grenades. Barrel is equipped with flash hider, which also served as a rifle grenade launcher. Lower receiver is made from aluminium forging, and the upper receiver is made from steel stampings. Furniture (butt, pistol grip, handguards) is made from plastic. Standard butt is of fixed type, but SR-88 also available with side-folding buttstock. The side-folding carrying handle is mounted at the forward end of the receiver.