I prefer the AK-47 that fires the .30 cal round in 7.62x39mm. The ammo is easier to get and has more power. It goes through barriers much better that the 5.45mm round. The Russians went to that round because it's close to the American .223 round. You can carry more of them which is good for auto fire but since we only are allowed semi autos the bigger 7.62x39mm round is my choice. Soilders in Iraq are not satisfied with the M16 and that says allot. Bigger bullets and shot placement is more important that the spray and pray method. My .02.