I bought a stock Bushmaster AR15 a couple of years ago. I wanted one for plinking and possible competition. I really like it as a plinker, but as far as compettion is concerned, I probably made a mistake. If I want to upgrade this rifle, it's going to cost me! Adding the NM trigger, NM sights, and free-floating barrel are not cheap upgrades. IMHO, if you are serious about competition, don't go for a stock rifle...