M-16 to be replaced by M-4

[Keith_Hixson]

Just read that the M-16 will be replaced by the M-4.
From what I read the M-4 is basically a carbine version of the M-16. I wonder if this is a good move? According to the article it will cut down on its killing distance by 100 yds. Though it will be easier to handle in tight confinements. Yet soldiers complain about its lack of killing power. I believe if you are going to change why not go with a completely new design and add some fire power with it.

Keith