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The SAR-21 is the latest development of the Singapore's Chartered Industries company, now known as the Singapore Technologies Kinetics division. This rifle was first displayed on public in 1999, at the DSEi '99 defense exhibition. At the present time the SAR-21 is adopted by the Singapore Armed Forces as the standard assault rifle, and gradually replaces the ageing M16S1 (Singapore-made M16A1 rifle), and CIS previous SAR-80 and SR-88 rifles. It is also offered for export military and law enforcement sales. At the present time it's hard to judge this rifle, but the available reports are quite favorable, stating that the gun is comfortable to carry and fire, accurate, reliable and has low recoil. While SAR-21 is much shorter than the M16 rifle with the barrel of the same length, the SAR-21 has the disadvantage of the right-side only extraction, with no provisions to change it to the left side (unlike most other modern bullpup rifles, like the Steyr AUG, GIAT FAMAS or the IMI Tavor).
Technical description.EditThe SAR-21 represents some kind of mainstream in the turn-of-the-centuries small arms technology. It is of bullpup layout, and utilizes the most conventional gas operated, rotating bolt locked action, with detachable box magazine feeding.
The gas system of the SAR-21 is located above the barrel. The long stroke piston is rigidly attached to the bolt carrier. The M16-style rotating bolt has 7 lugs and locks into the barrel extension. The return spring is partially housed inside the hollow gas piston rod and behind it. The charging handle is located above the gun housing, under the scope / carrying handle unit, and folds forward when not in use. The charging handle does not reciprocate when gun is fired. On the SAR-21 P (Picatinny rail) and SAR-21 RIS (Rail Interface System) versions of the basic design the charging handle is moved to the left side of the gun, leaving the place at the top for the sights / accessory rail.
The housing of the SAR-21 is made from tough, high impact resistant polymer, and consists of barrel section with the barrel / gas system, forearm and sights, upper receiver with the pistol grip and magazine housing, and the lower receiver with the buttplate and the hammer unit inside. All major parts are held together by the push-pins and can be separated for disassembly without any special tools. The upper receiver also incorporates a special safety system, which protects the shooters' face in the event of the cartridge case rupture or explosion.
The safety switch is located at the front of the enlarged triggerguard and is of the cross-bolt, push-button type. SAR-21 can provide 2 modes of fire, single shots and full automatic fire.
The SAR-21 is fed using proprietary 30-rounds box magazines, made from the translucent plastic.
The standard sighting equipment includes an integral 1.5X magnification telescope sight, with the emergency backup open sights formed at the top of the telescope housing. The SAR-21 P and SAR-21 RIS have no integral sights, instead these rifles featured a NATO-standard Picatinny type scope rail at the top of the gun, that can be fitted with wide variety of day and night sighting devices. Another interesting feature of SAR-21 is that it incorporates a laser aiming module (LAM, also sometimes referred as a laser pointer) as a standard feature. The LAM is mounted below the barrel, inside the forearm, and can emit either visible or infrared beams. The LAM switch is built into the forearm of the rifle.
The standard SAR-21can be fitted with the 40mm underbarrel grenade launchers, either US-made M203 or Singapore-made CIS 40GL. The SAR-21 RIS can sport a wide variety of add-on tactical accessories, including vertical "assault" foregrip, tactical lights etc.
SAR 21 Light Machine Gun (LMG)EditFitted with an open bolt, it has a heavy 513 mm (20.2 in) barrel with an integral folding bipod and a foregrip.S
SAR 21 SharpshooterEdit
Same as the basic SAR 21, but has 3.0x optical sight instead of standard 1.5x sight. The sight picture is composed of luminous black paint, allowing easier target engagement at night without use of the LAD.
SAR 21 Grenade Launcher (GL)Edit
Attached with a CIS 40 mm or M203 grenade launcher.Several sub-variants/prototypes incorporate different targeting modules (or mounted on p-rails) for grenade target acquisition. Known sights to have been used include aiming quadrants, various optical sights and laser fire control systems.
SAR 21 P-railEdit
Has a Picatinny rail in place of its integral optical sight Charging handle is moved to the left hand side of the weapon (Interchangeable with right side).
SAR 21 Modular Mounting System (MMS)Edit
Has integral optical sight and LAD removed to allow a wide variety of add-on tactical accessories, such as vertical assault grips, tactical lights and reflex sights. Charging handle is moved to the left hand side of the weapon. Similar to P-rail model with exception of shorter barrel.
SAR 21 Light Weight CarbineEdit
A light weight SAR 21 variant was revealed during the Asian Defence Exhibition held in conjunction with 2006 Asian Aerospace. The variant boasts an ultra-short barrel, shorter handguards and an integral holo-dot aiming recticle. A Picatinny rail is used as well.
RCF moduleEditThe Round Corner Firing (RCF) module, similar n concept to the Israeli CornerShot, can be attached to any of the above SAR 21 variants for conducting operations in an urban environment.
The prototype was unveiled at the Singapore Air show 2010, this updated variant boasts sturdier thumb selector for ambidextrous control, an unloaded weight of 3.2 kg (7 lb 0.9 oz), a full built-in Picatinny rail along its length and a higher rate of firing at 900 RPM. Production will begin in 2011
- Caliber: 5.56x45mm NATO
- Action: Gas operated, rotating bolt
- Overall length: 805 mm
- Barrel length: 508 mm
- Weight: 3.82 kg without magazine and accessories, 4.44 kg loaded with magazine and 30 rounds of ammunition
- Magazine capacity: 30 rounds
- Rate of fire: 450-650 rounds per minute
- Effective range: about 500 meters
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