I always wanted a AR-15, I traded my mini 14 for a new M400 (what a gun). this gun is amazing but its my first AR. I'm realy empressed, the trigger could stand a little work, but that being said, its a good safe trigger for my son to shoot. Don't worry LOL, hes 15 yrs old but he cant touch it without my supervison. What I'm asking is, anybody have any comments you can share with me about Sigs M400? The reason I got the Sig M400 was because of Sigs rep, and it was in my price range $850. Right out of the box, after about 600 rds of all different kinds of ammo, its very accurate and never a jam, very easy to shoot. thanks for any feedback and comments on the M400.