The M16 rifle and the M4 carbine are semi-automatic and automatic weapons that originated in the U.S. They are issued to U.S. troops and North Atlantic Treaty Organization (NATO) forces worldwide. The M16 was the standard U.S. military forces weapon from the mid-1960s and onward, but is being replaced by the M4, a smaller, more versatile carbine.

m16家族共有m16、m16a1、m16a2、m16a4、m4、m4a1几个常见军用型号。最初，m16被称作ar15，这是一个民用代号。ar15进入美军服役后，获得“m16”这个正式代号。初期的m16改进频繁稳定，变种繁多，直到1967年，m16a1定型，这些繁琐的改进才告一段落。

m16是 斯通纳 的全新设计，是从”齐射“计划发展出的 ar-10 进行改进，改成5.56mm的小口径得来的，用的是5.56×45nato蛋，气吹式、旋转闭锁。 m4是 m16系列 的紧凑型，换上短枪管、伸缩枪托，此外还有一些小的改进，但还是m16系列的种。

m4和m16主要区别如下: 1、m16称为突击步枪，主要供美国陆军地面部队使用。是美国陆军单兵主战装备。m4是卡宾枪，可以看作是m16的缩小版，主要供美国海军、空军和特种部队使用。

2020年3月18日 · The easiest way to look at it is this: Every M16 is an AR15, but not all AR15s are an M16. Many people will tell you that an AR15 is semi-auto only, and the M16 is full-auto. While this may help for differentiating between the two for civilian purposes, this isn’t at all true.

The M16 rifle and the M4 carbine are both widely used firearms by the United States military and law enforcement agencies. The M16 rifle is a longer and heavier weapon, with a barrel length of 20 inches, while the M4 carbine is a more compact and lightweight version, with a …

m4步枪继承ar系武器一贯的气吹式结构，而hk416则使用了短活塞导气系统，两者在可靠性上也相差甚远（精准的德国工艺），所以与其说hk416像m4，倒不如说更像套了ar系武器壳子的自家hk g36步枪

The M4 is the highly adaptable king that is the premier CQB rifle. The M16A2 is the more robust weapon that can reach out and touch targets at longer distances. Pick the one that better suits your needs.

2024年10月16日 · To help you make an informed choice, let’s compare the M16 and M4 across various categories: Range and Accuracy: M16: Known for its accuracy and long-range capabilities, the M16 is ideal for engagements at extended distances. M4: While slightly shorter in barrel length, the M4 still offers decent accuracy and is well-suited for close-quarters ...

2024年5月1日 · m16具有三种射击模式：单发、三发点射和全自动。 而M4则仅有单发和三发点射两种模式。 最后，两者在使用环境和战术应用上也各有侧重。