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SAR 21

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Not to be confused with TAR-21.

SAR 21
SAR 21, right side view. Pictured SAR 21 is attached with the Round Corner Firing (RCF) module and has had its magazine removed.
TypeBullpup assault rifle
Place of originSingapore
Service history
In service1999–present[1]
Used bySee Users
Production history
DesignerTuck Wah Chee and Felix Tsai of Chartered Industries of Singapore (Now ST Engineering)[2]
Designed1996[1]
Manufacturer• CIS: 1999–2000[1]
• ST Kinetics: 2000–present[1]
Produced1999–present[1]
VariantsSee variants
Specifications
Mass• SAR 21: 4 kg (8.82 lb)[1]
• SAR 21 GL/M203: 5.3 kg (12 lb)
• SAR 21 P-Rail: 3.6 kg (7.9 lb)
• SAR 21 MMS: 3.5 kg (7.7 lb)
• SAR 21 Light Weight Carbine 3 kg (6.6 lb)
Length805 mm (31.7 in) (SAR 21, SAR 21 40 GL/M203, SAR 21 P-Rail)
680 mm (26.8 in) (SAR 21 MMS)
640 mm (25.2 in) (SAR 21 Light Weight Carbine)
Barrel length508 mm (20.0 in)[1]
Cartridge5.56×45mm NATO[1]
Caliber5.56 mm (0.22 in)[1]
BarrelsSingle barrel 1:12" and 1:7" twist options [3]
ActionGas-operated, rotating bolt
Rate of fire450–650 rounds/min[1]
Muzzle velocity970 m/s (3,182 ft/s) (M193)
945 m/s (3,100.4 ft/s) (SS109)
Effective firing range460 m (M193)
800 m (SS109)
Feed system30-round detachable plastic box magazine
Export models: STANAG magazines[3]
Sights1.5x or 3x optical sight; back-up iron sights

The SAR 21, officially known as the Singapore Assault Rifle – 21st Century, is a gas-operated, direct impingement, magazine-fed bullpup assault rifle chambered for the 5.56×45mm cartridge.

Designed and manufactured in Singapore, it was first revealed and subsequently adopted by the Singapore Armed Forces (SAF) as its standard service weapon in 1999. It was designed and developed over a four-year period and was intended to replace the locally license-built M16S1 rifle[3] by the Ministry of Defence (MINDEF), Singapore Army and the former Chartered Industries of Singapore (CIS), presently the ST Kinetics subdivision of ST Engineering.[4]

Many of its design features are directly intended to counter the weaknesses of the M16S1 rifle as encountered operationally by some infantrymen.[1] The rifle is also sold for export use aside from domestic use.[5] In the United States, it was marketed by ST Kinetics via its American subsidiary, VT Systems.[6]

The SAR 21 has been widely adopted by other armed forces around the world beyond Singapore, most notably in its special forces operations in their respective countries. The SAR 21 is currently being phased out domestically, and will be replaced in production in the near future by the BR18 which has refined capabilities.[7]

History and development

Since the mid-80s, the SAF had an outstanding requirement to replace the M16S1, in use since 1973, in part due to licensing limitations that prevented Singapore from exporting the M16S1 or making new assault rifles based on it.[8] In 1994, a proposal by the SAF was submitted to MINDEF for options to either procure new weapons (thought was given to purchase the M16A2) or to develop its own indigenous rifle.[9] On 19 November 2002, a patent was filed with the United States Patent and Trademark Office by Tuck Wah Chee and Felix Tsai with the patent number 6,481,144 B1.[2]

MINDEF officials, after consultations with the SAF, decided against buying weapons off the shelf as it would require soldiers to adjust to the new weapon, choosing instead to develop a weapon, designed and made specifically for ease of use by conscript soldiers of the SAF, who are mostly of slighter physiques. Coupled with the rising costs of maintaining the M16S1s, this made it more justifiable to develop a low-maintenance weapon.[1]

In 2009, criminal charges were filed against former Indian Ordnance Factory Board director Sudipta Ghosh for corruption, among the allegations were an improper partnership with STK over supplying Indian law enforcement with the SAR 21 Modular Mounting System.[10][11] STK and several foreign firms involved were blacklisted by the Indian Defence Ministry.[12][13]

Design

A Singaporean soldier gives an overview of the SAR-21 rifle to a group of US Army soldiers at Multinational Base Tarin Kowt.

The SAR 21's furniture is made of a rugged, high impact polymer, much of the manufacturing is done utilising CNC machines, with ultrasonic welding for the steel-reinforced receiver halves and the gun barrel being cold hammer forged.[8] It uses a blend of the Kalashnikov and Stoner operating systems; a long stroke gas system and a 2 lugged AR-style bolt carrier, boasting higher reliability and lower recoil.[8] The translucent magazine allows precise assessment of current ammo load.[9]

The SAR 21 has a built-in Laser Aiming Device[4] (powered by a single "AA-size" battery)[8] which has a 5 position switch which can emit a visible beam at high or low power. It can also be set to "steady on" or "momentary on" which is triggered with the use of a pressure switch activated with the user's left thumb.[14] The rifle incorporates various patented safety features, such as a Kevlar cheek plate and overpressure vent that protects the shooter in the event of a chamber explosion or catastrophic failure.[3][15]

It also has an integral 1.5x optical scope that is built into its carrying handle and an available 3.0x version. The scope aids in target acquisition, particularly under low light conditions. The scope is factory-zeroed, and requires minimal further zeroing to suit different users.[3][4] This minimizes non-training range time.[1]

Operation

Like the M16 rifle, the bolt locks open on an empty magazine. When the magazine is exhausted, it is removed by depressing the AK-style lever. Clearing the weapon is accomplished by removing the magazine, pulling the charging handle to the rear, and observing the chamber. After loading a magazine into the housing, the weapon is made "ready" by cocking the weapon, and engaging the FN MAG-type safety button forward of the trigger guard. The position of the fire selector button (SEMI or AUTO) on the stock may also be adjusted.[1]

The on/off switch for the laser aiming device is located on the left handguard; when holding the weapon at ready, the left thumb rests naturally on it.[8] With sluggish operation due to fouling, the gas regulator setting may be adjusted by turning it with a coin, screwdriver, or any other thin flat object. Alternatively, the gas regulator can be unlatched and turned by hand with aid of its knurled surface.[1]

Variants

A Singaporean soldier takes aim with the SAR-21. Note the emitted red beam from the laser sight.
SAR 21 Light Machine Gun (LMG)
Fitted with an open bolt, it has a heavy 513 mm (20.2 in) barrel with an integral folding bipod and a foregrip.[1]
SAR 21 Sharpshooter
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.[3]
SAR 21 Grenade Launcher (GL)
Attached with a CIS 40 GL or M203 grenade launcher.[3][14] 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.[3]
SAR 21 Picatinny rail
Has a Picatinny rail in place of its integral optical sight.[14] Charging handle is moved to the left hand side of the weapon (Interchangeable with right side).[3][14]
SAR 21 Modular Mounting System (MMS)
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.[14] Similar to P-rail model with exception of shorter barrel.[3][14] Variants consist of a standard and carbine-based barrels.[16]
SAR 21 Lightweight Carbine
A lightweight SAR 21 variant was revealed during the Asian Defence Exhibition held in conjunction with 2006 Asian Aerospace. The variant boasts an ultra-short barrel and shorter handguards. A Picatinny rail is used as well.[3]
RCF module
The Round Corner Firing (RCF) module, similar in concept to the Israeli CornerShot, can be attached to any of the above SAR 21 variants for conducting operations in an urban environment.[17]
SAR 21A
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. In production as of 2012.[18]

Reception

The SAR 21 has been considered in Singapore as being a much-needed upgrade to the previous M16S1. Nevertheless, some early users of the weapon in the Singapore Armed Forces did experienced problems, mainly due to their initial unfamiliarity with the bullpup design. Their assessments include the awkward position of the fire selector (located at the butt, with the action), as opposed to the thumb selector on the M16S1.[9][19]

Some of these assessments were addressed with design modifications to the later production models of the SAR 21. New weapon handling procedures were also introduced. These include:

  • Soldiers are to always hold the pistol grip with their master hand. The charging of the weapon and reloading of magazines are to be done by the non-master hand.
  • The trigger pull was improved by using a stiff sliding plate in place of the flexible rod.
  • The iron sights were replaced with stockier, hardier ones.

The Kevlar plating on the left side of the weapon butt (where a right-handed user's face would typically be) is also effective in protecting the user from any internal chamber explosion by directing the resulting force to the right.[8] However, that resultant force would also seriously injure anyone unfortunate enough to be on the right side of the weapon. In the case of a user firing from their left shoulder, this could cause severe injury to their face.[citation needed] As a result, all left-handed SAF soldiers are taught to fire from their right shoulder as a safety measure. The SAR 21 was designed with a small built-in brass deflector to eject spent bullet casings forward, thus reducing the chances of the spent casings hitting a left-handed user's face. The rifle is not completely ambidextrous but may, in a pinch, be fired from the left shoulder.[1]

Many of these improvements were also included in BR18, its successor.

Awards

  • The SAR 21 was awarded the Defence Technology Prize in 2001.[20]

Users

Asia

Africa

Americas

References

Notes
  1. ^ a b c d e f g h i j k l m n o p q Richard J, 2008.
  2. ^ a b "United States Patent Chee et a." Retrieved 24 July 2010.
  3. ^ a b c d e f g h i j k "SAR 21 Product Brochure" (PDF). ST Engineering. Archived from the original (PDF) on 4 November 2013. Retrieved 24 July 2010.
  4. ^ a b c "Factsheet - Singapore Assault Rifle 21". Singaporean Ministry of Defence (MINDEF). Archived from the original on 25 December 2012. Retrieved 24 July 2010.
  5. ^ "Infantry Article Index". 19 November 1999. Archived from the original on 22 February 2012. Retrieved 24 July 2010.
  6. ^ "Call to arms in Singapore yields explosive results". Fairfax Digital. 3 August 2003. Archived from the original on 5 January 2010. Retrieved 24 July 2010.
  7. ^ https://www.gunsweek.com/en/rifles/articles/st-kinetics-br18-ultimate-bull-pup-assault-rifle
  8. ^ a b c d e f "Archived copy". Archived from the original on 2 August 2018. Retrieved 2 August 2018.{{cite web}}: CS1 maint: archived copy as title (link)
  9. ^ a b c Charles Q Cutshaw (31 May 2000). "Singapore is rearing SAR 21 bullpup rifle for home and export requirement". Jane's International Defence Review: Land Forces News. Archived from the original on 25 February 2008. Retrieved 29 October 2010.
  10. ^ https://www.stratpost.com/anatomy-of-a-blacklist-singapore-technologies/
  11. ^ "The Ordnance Factory Board Scam – Compendium of Arms Trade Corruption". Retrieved 4 September 2021.
  12. ^ May 20, TNN /; 2009; Ist, 00:00. "Ex-DG of ordnance factory arrested on graft charges | India News - Times of India". The Times of India. Retrieved 4 September 2021. {{cite web}}: |last2= has numeric name (help)CS1 maint: numeric names: authors list (link)
  13. ^ "Ordnance scam: Defence ministry blacklists six firms-Fwire News , Firstpost". Firstpost. 5 March 2012. Retrieved 4 September 2021.
  14. ^ a b c d e f "Singapore Technologies Kinetics SAR-21 assault rifle (Singapore)". Archived from the original on 9 August 2010. Retrieved 24 July 2010.
  15. ^ "SAR 21". Popular Mechanics. Archived from the original on 27 January 2010. Retrieved 24 July 2010.
  16. ^ "Archived copy" (PDF). Archived from the original (PDF) on 4 November 2013. Retrieved 23 July 2013.{{cite web}}: CS1 maint: archived copy as title (link)
  17. ^ "Factsheet: Urban Operations". MINDEF. 25 July 2006. Archived from the original on 3 March 2016. Retrieved 17 May 2013.
  18. ^ "New Assault Rifle from ST Kinetics - The Firearm Blog". The Firearm Blog. Archived from the original on 10 November 2014. Retrieved 23 December 2014.
  19. ^ David Crane (16 March 2004). "SAR-21 Bullpup Assault Rifle: World's Best Combat Bullpup?". Defense Review. Archived from the original on 21 July 2010. Retrieved 24 July 2010.
  20. ^ "DSTA Team Award - The SAR21 Rifle". www.dsta.gov.sg. Retrieved 25 November 2021.
  21. ^ "Factsheet - Singapore Assault Rifle 21". MINDEF. 19 May 2005. Archived from the original on 25 December 2012. Retrieved 29 April 2013.
  22. ^ Mahmud, Hadi DP (20 February 2008). "RBTS and STK ink MoU deal for vehicle upkeep". The Brunei Times. Archived from the original on 27 February 2009. Retrieved 24 July 2010.
  23. ^ Daniel Watters. "The 5.56 X 45mm: 2007". GunZone.Com. Archived from the original on 10 October 2008. Retrieved 24 July 2010.
  24. ^ a b c d e "Weapon". Archived from the original on 23 December 2014. Retrieved 23 December 2014.
  25. ^ Binnie, Jeremy; de Cherisey, Erwan (2017). "New-model African armies" (PDF). Jane's. Archived from the original (PDF) on 22 June 2017.
Bibliography
Wikimedia Commons has media related to SAR-21.
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