M4A1

The M4 carbine is a family of firearms tracing its lineage back to earlier carbine versions of the M16 rifle, all based on the original AR-15 designed by Eugene Stoner and made by ArmaLite. It is a shorter and lighter version of the 
M16 rifle assault rifle, with 80% parts commonality. The M4A1 can be semi-automatic, three round burst, or fully automatic, which is known as selective fire. It is gas operated, air-cooled, magazine-fed, selective fire, and is a shoulder-fired weapon with a telescoping stock. The M4 has a 14.5 Inch (368 Millimetre/mm barrel), allowing the individual soldier to better operate in close quarters. The carbine is also capable of mounting an 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. 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. 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. This claim needs references to reliable sources from December 2009. This means that the M4 is very much an adequate weapon for the majority of troops. The marginal sacrifice in terminal ballistics and range, in exchange for greatly improved handling characteristics, is usually thought to be a worthwhile compromise.
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===Weapon Attachments===
*Silencer
*ACOG
*Laser Sight
*Red Dot Sight
*Holographic sight
*Shotgun attachment
*Grenade Launcher
*Flamethrower
*Thermal Scope
*Extended Mags
*Duel Mags
*Inferred Scope
*Reflex Scope
*SUSAT Scope
*Flashlight
*Upgrade Iron Sight
*Rail-Mounted Angled Fore-Grip
*Grip