When my son was 11 we built his long-range/PRS gun. I bought a heavy-barrel Howa 1500 in .223 and put it in a KRG Bravo. Threw a Magpul bipod on it, Vortex rings, scope, and bubble level, and a couple of MDT .223 mags. All in we had the whole thing built for under $1500 and that included...