M4

"The M4 rifle is the carbine variant of the larger M16 series of rifles, first adopted by the US Army in the mid 1960s. The rifle is now the standard issue rifle of the US Army and fires the slim, lightweight 5.56x45mm NATO cartridge. It has a number of modern features including a telescopic stock and an integrated rail system for the mounting of optics (M150 4x optic, or the M68 Close Combat Optic) and grips. Its light weight and high cyclic rate make it a very handy weapon in various combat environments."

- In-game description "The M4 rifle is the carbine variant of the larger M16 series of rifles, first adopted by the US Army in the mid 1960s. The rifle fires the slim 5.56x45mm NATO cartridge, and is a lightweight combination of metal and polymer. Its light weight and high cyclic rate make it a very handy weapon in various combat environments. Due to US arms exports, it has seen a lot of use around the world in regular and unconventional armies."

- In-game description The  is a carbine featured in Squad.

General Information
The M4 Carbine is a gas-operated, rotating bolt carbine. The M4 was derived from a prototype in 1984 to the finalized version in 1993. The M4 Carbine is the shorter version of the M16A2 assault rifle. The M4 Carbine was later adopted by the US Army as the standard service assault rifle and carbine in 1994, replacing the M16 series assault rifles. The M4 would remain the standard infantry rifle of the US Army until 2014 where it is currently being replaced by its automatic variant, the M4A1.

The M4 Carbine incorporates a telescoping stock, picatinny rail, and 370 mm (14.5 in) barrel. Like all carbines, the M4 is compact in size and smaller than an average assault rifle so it is easier to handle and carry. The weapon overall is intended for short to medium range engagements out to 200 or even 300m. The M4 uses standard ghost-ring iron sights with a large post. The M4 Carbine is chambered in 5.56x45mm NATO.

It is accurate to about 3 MOA (approximately 9cm at 100m).

Gameplay
The M4 is the standard issue rifle of the United States Army and is also the alternative choice rifle for the Irregular Militia. There are 6 unique variants in-game: