[King24]

I have the sig m400 enhanced. Its a great ar, shoots smooth and I havent had any problems with it. Eotech xps2 works awsome on it.

 

[King24]

Mullet hunter. They are about the same, the colt m4 is 6lb 11oz. The sig sauer m400 enhanced is 6lb 7oz. In fact the stock m400 is 6.5lb, lighter than most ar rifles. Yes that is empty weight. 516 is a little heavier 7.6lb or somthing like that.