I recently bought a bushmaster .223 and found out quickly that i should have found one closer to what i wanted as far as hand guard sites and stock. The gun is basic and has no sites and i am told that if i want a front site i will have to have the gasblock changed. So i kinda felt miss led by my local gun dealer and did some research and went and bought the rock river elite with all the goodies a week later. My question is what will be the best kinda scope system for the bushmaster being that Ive been told it will be a min of 300-350 for a front site. Also for the rock river i have a few other bolt ons i want to add should i stick with rock river bolt ons or is all the brands pretty much interchangeable