The M4 carbine (officially Carbine, Caliber 5.56 mm, M4) is a 5.56×45mm NATO assault rifle developed in the United States during the 1980s. It is a shortened version of the M16A2 assault rifle.

2005年12月8日 · M4卡宾枪（M4 carbine），是一种5.56×45mm NATO气动式弹匣供弹卡宾枪，于1980年代在美国开发。 它是 M16A2突击步枪 的缩短版。 M4为 美军 目前的 制式步枪 ，同时也广获各国军队及执法机关采用。

m4卡宾枪枪是m16a2突击步枪的一种轻量化、小型化的变体，m4依然沿用m16的气体直推传动方式，采用可与m16通用的弹匣供弹，可容纳30发5.56×45毫米北约标准子弹。

2023年9月29日 · Officially adopted in 1994, the M4 carbine has only been gaining steam on the global stage ever since. Designated as Carbine, Caliber 5.56 mm, M4, the weapon has since been adopted by dozens of different nations and armed groups around the world. A plain-Jane Colt M4A1. Photo: Wikipedia.

The M4 carbine is a gas-operated, magazine-fed, 5.56x45mm NATO carbine designed in the United States in the '80s. It is a shortened version of the M16A2 assault rifle. Colt has produced many M4 civilian variations and lines over the years, each of which is distinguished by a four-digit number that comes after a specific prefix (LE, CR, etc.).

The 5.56×45mm NATO (official NATO nomenclature 5.56 NATO, commonly pronounced "five-five-six") is a rimless bottlenecked centerfire intermediate cartridge family developed in the late 1970s in Belgium by FN Herstal. [5] . It consists of the SS109, L110, and SS111 cartridges.

Check out COLT M4 CARBINE 5.56MM NATO/223 REMINGTON RIFLE available Online at Brownells Today and many more Semi Auto Rifles products are available in our Guns Department.

Colt's LE6920 series carbines share many features with their combat-proven brother, the Colt M4. It utilizes a chrome-lined barrel, an adjustable-post front sight with rear Back-Up Sight, and a 10-round Magpul PMAG. This model has no carry handle.