Thursday, March 12, 2009

M4 carbine




The M4 Carbine is a family of firearms tracing its lineage back to
earlier carbine versions of the M16, all based on the original AR-15 made
by ArmaLite. It is a shorter and lighter version of the M16A2 assault rifle,
achieving 80% parts commonality with the M16A2.The M4 has selective
fire options including semi-automatic and three-round burst (like the
M16A2), while the M4A1 has a "full auto" option in place of the
three-round burst. The M4 Carbine is a family of firearms tracing its lineage back to
earlier carbine versions of the M16, all based on the original AR-15 made
by ArmaLite. It is a shorter and lighter version of the M16A2 assault rifle,
achieving 80% parts commonality with the M16A2.The M4 has selective
fire options including semi-automatic and three-round burst (like the
M16A2), while the M4A1 has a "full auto" option in place of the
three-round burst. The M4 and variants fire 5.56x45mm NATO ammunition and are
gas-operated, air-cooled, magazine-fed, selective fire firearms with a
4-position telescoping stock. Original M4 models had a flat-ended
telescoping stock, but newer models are now equipped with a redesigned
telescoping stock that is slightly larger with curvature at the end. The M4 is
similar to much earlier compact M16 versions, such as the 1960s-era
XM177 family. Some of those visual designs are obvious in both weapons,
however most of the similarities are not very noticeable.As with many carbines, the M4 is handy and more convenient to
carry than a full-length rifle. While this makes it a candidate for non-infantry
troops (vehicle crews, clerks and staff officers), it also makes it ideal for
close quarters combat (CQC), and airborne and special operations, which
is the most popular usage for the weapon. It has been adopted by United
States Special Operations Command (USSOCOM) and is the preferred
weapon of the U.S. Army Special Forces and Navy SEALs. M4's have
also been fielded by the Australian Special Air Service Regiment. Malaysia
purchased M4 Carbine service rifles to replace the Steyr AUG service
rifles in its armed forces in 2006 and will be manufactured in Malaysia
under license by SME Ordnance Sdn Bhd. It is expected that the M4 will
be adopted by law enforcement agencies in Malaysia, such as the Royal
Malaysian Police and the Malaysian Maritime Enforcement Agency.The M4/M4A1 5.56 mm Carbine is a gas-operated, air-cooled,
magazine-fed, selective fire, shoulder-fired weapon with a telescoping
stock. A shortened variant of the M16A2 rifle with a 14.5 in (368 mm)
barrel, the M4 provides the individual soldier operating in close quarters
the capability to engage targets at extended range with accurate, lethal fire.
The original M4 Carbine has semi-automatic and three-round burst fire
modes, while the M4A1 has "semi" and "full auto", with no three-round
burst. The M4 Carbine achieves over 80% commonality with the M16A2
rifle and was intended to replace the .45 ACP M3 submachine guns and
selected M9 pistols and M16 rifle series with most Army units (this plan
was thought to be changed with the development of the XM29 OICW and
the XM8 carbine. However, both projects were cancelled). The M4
Carbine is also capable of mounting the M203 grenade launcher, the
M203A1 with a 9-inch barrel as opposed to the standard 12-inch barrel of
the M203 used on the M16 series of rifle.

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