|Place of origin||Singapore|
|Used by||See users|
|Designer||Chartered Industries of Singapore (CIS, now ST Kinetics)|
|Manufacturer||• CIS: 1982–2000|
|Produced||• SR 88: 1988-1995
• SR 88A: 1990-2000
|Weight||• SR 88: 3.68 kg (8.11 lb)
• SR 88A/Carbine: 3.7 kg (8.16 lb)
|Length||• SR 88: 912 mm (35.9 in)
• SR 88A: 960 mm (37.8 in)
• SR 88A Carbine: 810 mm (31.9 in)
|Barrel length||460 mm (18.1 in)|
|Caliber||5.56 mm (0.22 in)|
|Barrels||Single barrel (progressive RH parabolic twist, 6 grooves)|
|Action||Gas operated, rotating bolt|
|Rate of fire||• SR 88: 750 rounds/min
• SR 88A: 800 rounds/min
|Feed system||30-round STANAG Magazine|
Following the poor production sales of the SAR 80 and with their involvement with the Sterling SAR-87, CIS came up with an improved design – the new SR 88. Many of the parts and mechanisms are similar to its predecessor. Later production models were further improved with higher quality materials including a new handguard and buttstock, this version was designated the SR 88A. The SR 88A was built in two versions, the standard model and the latest carbine model which is a heavy-duty mil-spec version with a shorter barrel and a retractable butt-stock popularly called today as the "baby ultimax" because of its over-all shorter feature, function and frame similarities with the Ultimax 100. Its magazine catch will accept a regular M16 magazine and a C-mag which is also used in M16 rifles.
It uses long piston stroke gas operated action with rotating bolt. The gas piston and gas cylinder are chromium-plated. The gas system features a three positions gas regulator - two open positions, for normal and harsh conditions, and one closed for launching of rifle grenades. 
Furniture (stock, pistol grip, handguards) is made from plastic materials. The standard stock is of fixed type, but the SR 88 is also available with a side-folding stock. The side-folding carrying handle is mounted at the forward end of the receiver.
- SR 88
- Standard rifle variant.
- SR 88A
- Improved variant of above.
- SR 88A Carbine
- Carbine variant for use by paratroopers.