M16现在有几种衍生型?

这里只列出我收集到的型号[IMG] http://www.lyglyg.com/pic/yourpic/2006/08/04/3b5f80971c4998fab529742e870bf6f4.gif[/IMG] R6700[IMG] http://www.lyglyg.com/pic/yourpic/2006/08/04/4f34bf5fab275237c513717c28b11e08.gif[/IMG] R6701与6700的区别是准星座下方有刺刀卡笋[IMG] http://www.lyglyg.com/pic/yourpic/2006/08/04/16bc17a4edc315f2a35ce7a94af43a88.gif[/IMG] R6500，没有刺刀卡笋[IMG] http://www.lyglyg.com/pic/yourpic/2006/08/04/745dd38bb309c762f3ab4c2a5bf9c15c.gif[/IMG] MT6601/6700/6731半自动比赛步枪，采用20英寸重型枪管和平顶型机匣，没有消焰器[IMG] http://www.lyglyg.com/pic/yourpic/2006/08/04/75dafb4c34c830f202f9aaaabe0bb1e7.gif[/IMG] CR6724比赛步枪，采用24英寸长重型枪管，护木改为直筒型，枪管加重加长并有散热刻槽，同时起减重作用[IMG] http://www.lyglyg.com/pic/yourpic/2006/08/04/a9111432f183cc21a99221047c110093.gif[/IMG] [IMG] http://www.lyglyg.com/pic/yourpic/2006/08/04/2c724d0cf5472b2f82701defe7aa3516.jpg[/IMG] [IMG] http://www.lyglyg.com/pic/yourpic/2006/08/04/98138997cd393a3b2a7e6e1a991e8b70.gif[/IMG] [IMG] http://www.lyglyg.com/pic/yourpic/2006/08/04/8829435c24d91f36b6337e28e9bc5847.jpg[/IMG] 机匣铭文上印着TARGET，靶枪型即精度较高可用于比赛射击的型号[IMG] http://www.lyglyg.com/pic/yourpic/2006/08/04/ae61efdd2c37193a8879809e10d0e4d4.jpg[/IMG] [IMG] http://www.lyglyg.com/pic/yourpic/2006/08/04/573e27c339234127c64b46facb7cc5de.jpg[/IMG] 柯尔特652型，其实是固定枪托型的653型[IMG] http://www.lyglyg.com/pic/yourpic/2006/08/04/4e06f64c341e2883d1a9542366323237.jpg[/IMG] AR6520，也称为AR-15A2政府型卡宾枪，枪管长16.1英寸，空枪重2.64kg。[IMG] http://www.lyglyg.com/pic/yourpic/2006/08/04/f5b966cd6e75bfd3fb1bef77b0a2d9f6.jpg[/IMG] [IMG] http://www.lyglyg.com/pic/yourpic/2006/08/04/348e7353a031937e7430a8b22dde2948.jpg[/IMG] [IMG] http://www.lyglyg.com/pic/yourpic/2006/08/04/ff5ec603a5d8c6c7d7fd21af08a46324.jpg[/IMG] AR6721，也称为AR-15A3战术卡宾枪，与AR6520的区别是改为平顶型机匣，而且采用了重型枪管，空枪重3.2kg。[IMG] http://www.lyglyg.com/pic/yourpic/2006/08/04/9063ded6ba05485e7c29e54d7e74ea75.jpg[/IMG] 重型枪管运动型[IMG] http://www.lyglyg.com/pic/yourpic/2006/08/04/49ec3b258a7e8a3c5e279b07d76cb850.jpg[/IMG] [IMG] http://www.lyglyg.com/pic/yourpic/2006/08/04/641c27a9ca2fd5b1d9348c7c8f1a8210.jpg[/IMG] [IMG] http://www.lyglyg.com/pic/yourpic/2006/08/04/d68c8fbe918fb604f116d95db99670ad.jpg[/IMG] [IMG] http://www.lyglyg.com/pic/yourpic/2006/08/04/1b3e90a28e2605ecbcbfcfae5849c26a.jpg[/IMG] 这一种采用M16A2护木的短枪管型步枪是用于比赛的型号[IMG] http://www.lyglyg.com/pic/yourpic/2006/08/04/2fd578751c044cb1fd35484003e71633.jpg[/IMG] [IMG] http://www.lyglyg.com/pic/yourpic/2006/08/04/1d940522cf8b5771ac8a2013b0e894fe.jpg[/IMG] [IMG] http://www.lyglyg.com/pic/yourpic/2006/08/04/082caaf5506071587317a6181e3bd856.jpg[/IMG] 这是COLT生产的一种7.62×39mm口径的卡宾枪[IMG] http://www.lyglyg.com/pic/yourpic/2006/08/04/8561f0827ccbfe7350b36d2801b39243.jpg[/IMG] [IMG] http://www.lyglyg.com/pic/yourpic/2006/08/04/65f8979d207ee7df9816ac71d0e70869.jpg[/IMG] [IMG] http://www.lyglyg.com/pic/yourpic/2006/08/04/c5b35a202325bcd9cd5a459b9a74a46f.jpg[/IMG] [IMG] http://www.lyglyg.com/pic/yourpic/2006/08/04/758c9387bc7c539b828473d5a1388f60.jpg[/IMG] M16半自动手枪，由于M16的缓冲簧延伸至枪托内，因此在机匣后方伸出一大段圆管 。目前不知道是型号的名称，但可以看到机匣上的Colt标记，当然也可能是其他小厂的改装枪。

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