It is the 2013 National Day of Singapore
today, on 9 August 2013. Singapore is now 48 years old. I will post the SAR 21
as the Weapon of the Fortnight to celebrate the National Day Parade of
Singapore. I got the information from Wikipedia.
SAR 21 |
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The
rifle is being sold for export use aside from domestic use. In the United
States, it is being marketed by ST Kinetics via its American subsidiary, VT
Systems.
The SAR 21 with the attached Round Corner
Firing (RCF) module
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Type
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Assault
rifle
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Place of origin
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Singapore
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Service history
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In service
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1999–present
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Used by
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See Users
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Production history
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Designer
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Tuck
Wah Chee and Felix Tsai of Chartered Industries of Singapore (CIS, now
ST Kinetics)
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Designed
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1996
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Manufacturer
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• CIS:
1999–2000
• ST Kinetics: 2000–present |
Produced
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1999–present
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Variants
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See variants
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Specifications
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Weight
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• SAR
21: 3.82 kg (8.42 lb)
• 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) |
Length
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805 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 length
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508 mm
(20.0 in)
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Cartridge
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5.56×45mm
NATO
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Caliber
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5.56 mm
(0.22 in)
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Barrels
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Single
barrel (progressive RH parabolic twist, 6 grooves)
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Action
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Gas-operated,
rotating bolt
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Rate of fire
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450–650
rounds/min
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Muzzle velocity
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970 m/s
(3,182 ft/s) (M193)
945 m/s (3,100.4 ft/s) (SS109) |
Effective range
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460 m
(M193)
800 m (SS109) |
Feed system
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30-round
box magazine; plastic or STANAG magazines[3]
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Sights
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1.5x or
3x optical sight; back-up iron sights
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History and
development
Since
the mid-80s, the SAF had an outstanding requirement to come up with a
replacement for their M16S1 as most of these had been in use since 1973. In
1994, a proposal by SAF was submitted to the MINDEF for options to either
procure newer weapons (thought was given to purchase the M16A2) or to develop
its own indigenous rifle. 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.
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
the conscript soldiers of the SAF, who are mostly of Asian physiques. Coupled
with the rising costs of maintaining the M16S1s in SAF's armory, this made it
even more justifiable to develop a low-maintenance weapon.
A Singaporean soldier gives an overview of
the SAR-21 rifle to a group of US Army soldiers at Multinational Base Tarin Kowt.
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Design
The
SAR 21 is made of a rugged, high impact polymer, most 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. It uses a modified Stoner
operating system, boasting higher reliability and lower recoil. The translucent
magazine allows precise assessment of current ammo load.
The
SAR 21 is also the first production assault rifle of its class to incorporate a
built-in Laser Aiming Device (LAD) (powered by a single "AA-size"
battery) as standard. It 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. 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. It also has an integral 1.5x optical scope that is built into its
carrying handle (A 3.0x version is also available). 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.
This minimizes non-training range time.
Externally,
the SAR 21 along with the Israeli IMI Tavor TAR-21 and the South African Vektor
CR-21 (all minus the foregrip) as with most other bullpup designs bears only a superficial
appearance/resemblance to the Austrian Steyr AUG, although the advent of the bolt
action bullpup Thorneycroft carbine in 1901 preceded the Steyr AUG (in
production since 1978) by almost eighty years.
Design issues
Early users of the weapon in the
Singapore Armed Forces experienced many problems due to their unfamiliarity
with the bullpup design. Their criticisms (usually in comparison with the M16S1
rifles they were already trained with) include:
- the awkward position of the magazine well, and the difficulty in changing magazines, requiring multiple hand changes due to its bullpup shape
- the awkward position of the fire selector (located at the butt, with the action), as opposed to the thumb selector on the M16S1
- the sluggish trigger pull compared with the crisp trigger of the M16S1
- the weight of the weapon
- the increased muzzle blast, due to the muzzle being nearer to the user's ears
- being told by instructors that it is a "right-handed only" weapon and left-handed soldiers having to (and are still being taught to) fire with their right hand
- iron sights that chip off easily when weapon is dropped
- Lack of internal illumination of the scope (the crosshairs in the scope are virtually invisible in the dark)
Some of these criticisms were
addressed with design modifications to the later production models. New weapon
handling procedures were also introduced.
- The magazine changing issue was solved with training soldiers 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 sluggish trigger pull was improved by using a stiff sliding plate in place of the flexible rod.
- The Steyr AUG styled 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 effective in protecting the user from any internal chamber explosion by
directing the resulting force to the right. 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 his left shoulder, this could cause
severe injury to his face. 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 in-built brass deflector to eject spent bullet casings forward,
thus reducing the chances of the spent casings hitting a left-handed user's
face. This means the rifle is not completely ambidextrous but may, in a pinch,
be fired from the left shoulder.
However, ST Kinetics has
taken these criticisms into consideration and had improved the SAR-21 design
with the upcoming SAR 21A. The prototype was unveiled at the Singapore Airshow
2010 and production will begin in 2011.
A Singaporean soldier takes aim with the
SAR-21. Note the emitted red laser beam.
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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.
The
on/off switch for the LAD is located on the left handguard; when holding the
weapon at ready, the left thumb rests naturally on it. With sluggish operation
due to fouling, the gas regulator setting may be increased 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 the knurled surface.
Soldier
from the US Oregon Army National Guard taking aim with
a SAR-21 Modular Mounting System (MMS).
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Variants
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.
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.
SAR 21
Grenade Launcher (GL)
Attached with a CIS 40 GL 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-rail
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)
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 Carbine
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 and shorter handguards. A Picatinny
rail is used as well.
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.
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. Production will begin
in 2011.
M203 Grenade Launcher
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Personal photo, taken at Asian Aerospace 2006
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