The SOPMOD M4 Carbine Kit includes a suppressor and muzzle brake used to decrease M-4A1 Carbine flash and sound during firing without significantly changing the point of impact. The M4 and its variants fire 5.56x45mm NATO ammunition and are gas-operated, air-cooled, magazine-fed, selective fire firearms with a multi-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.
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| Sopmod M4 Carbine |
The Sopmod M4 Carbine Assault Rifle with the newer, redesigned telescoping stock. As with many carbines, the M4 is handy and more convenient to carry than a full-length rifle. The price is slightly inferior ballistic performance compared to the full-size M16, with its nearly 6" (15 cm) longer barrel. This becomes most apparent at ranges of 300 yards and beyond. Statistically, however, most small-arms engagements occur within 100 yards. in July 1, 2009, the U.S. Army took complete ownership of the M4 design. This will allow companies besides Colt to compete with their own M4 designs.
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| Sopmod M4 Carbine Series |
The Army is planning on fielding the last of its Sopmod M4 requirement in 2010. On October 30, 2009, Army weapons officials proposed a series of changes to the M4 to Congress. Requested changes include an electronic round counter that records the number of shots fired, a heavier barrel, and replacing the direct impingement system with a gas piston system. As of September 2010 the Army has announced they will buy 12,000 M4A1s from Colt Firearms by the end of 2010 and will by early 2011 order 25,000 more M4A1s. The Army announced also to have open competition for newly designed M4 bolt carrier and gas piston operation system, which will be fitted to the newly bought M4A1 carbine. The service branch plans to buy 12,000 of these conversion kits in early 2011. In late 2011 the Army plans to buy 65,000 more conversion kits.
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| Sopmod M4A1 Carbine |
The M4 Carbine is like the M16A2, but is more compact and features a collapsible stock. It weights seven and a half pounds, fires 5.56 millimeter rounds, and has a maximum effective point target range of 500 meters and an area target of 600 meters. The Carbine will eventually replace all the M16 series rifles, selected M9 pistols and all 45-caliber M3 submachine guns.
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