You guys might hate for this but unlike a lot of you I'm not a huge fan of the AR-15. Now don't get me wrong I respect it but I feel like it isn't what our military needs right now. For starters it's round, the 5.56, doesn't have enough stopping power. American soldiers have complained in Somalia, Iraq, Afganistan, and many other theaters of battle, about how the 5.56 round hitting their enemies and not putting them down, it would just pass right through them. Another problem I have with it is it's direct impingement gas system. It is unreliable and causes jams. We have had problems with this system since the original AR-15's in Vietnam. The advantages of the AR-15 are accuracy, modularity, and familiarity. Many of us were raised on the AR. There are several potential replacements for the AR-15. Some of these are the Remington ACR, FN SCAR, HK 416, and the XM8. I am personally a fan of the ACR. It's short stroke gas piston system is extremely reliable. Its top reciever can be changed out to shoot the 5.56, 6.8, and 7.62x39mm cartridges. I think our military should be giving the best to our soldiers. What do you guys think?