Close Combat in IRAQ

March 4, 2009

Secret Russian transport.

Moscow Spetsnaz (OMON)

June 10, 2008

Worlds Greatest Military

June 10, 2008


United States Military in action


Video showing US Marines in Iraq. Including some action scenes. Song by Nickelback.

The M468 is the designation for an upgrade to the M16/M4 family of service rifles made by Colt. The M468 is manufactured by Barrett Firearms Company, who are probably best known for producing the M82 .50 caliber sniper rifle.

Overview:

Unlike possible replacements for the M16/M4 such as the now canceled XM8, the M468 is not an entirely new rifle, instead the M468 is only made up of an upper receiver (made by Barrett) that is attached to M16/M4 service rifle lower receivers and is compatible to many accessories intended for the M16/M4 family. It can also be mated to M16/M4 lower receivers currently in the possession of the US military.

In addition, the M468 uses the new 6.8 mm Remington SPC (6.8 x 43) rounds that are very similar in size to the 5.56 mm rounds used by the United States Military today. According to Barrett, the new 6.8 mm round is supposed to have 50% more stopping power than the 5.56 round and a longer effective range. The round has a slightly lower velocity than the 5.56 round, but Barrett claims it has 1.5 times the kinetic energy as the 5.56 mm round. The company claims that it is effective at six hundred meters and has a muzzle velocity of 2650 feet per second when fired from a 16 inch barrel. The M468 employs the S.I.R. handguard (Selective Integration Rail) manufactured by ARMS Inc, which allows many military accessories such as a bipod, night vision devices, and combat optics to be placed on the rifle. In addition the SIR system had flip-up iron sights already built in to the system that can be used if used as a stand alone rifle.

Specifications:

Weight 8.1 lb, 9.62 lb w/ 30 round mag.
Length 35.5″ with standard stock, 32″ fully collapsed stock
Barrel length 16 in.
Cartridge 6.8 mm Remington SPC
Caliber 6.8 mm Remington SPC
Action Gas-operated, rotating bolt
Rate of fire Max Effective: 45(semi) to 90(auto) round/min. Cyclic rate of fire 750 rounds/min.
Muzzle velocity 2,650 ft/s (810 m/s)
Effective range 600 m point 800m area
Feed system 5, 10, 20, 28 or 30-round detachable magazine