Ruben Nasser
New member
Hello!! I would like some advice regarding the selection of a complete match upper for my Colt AR15. I know some will tell me to just select the barrel and other components and assemble everything myself, but I would prefer a complete match quality upper from a reputable source. I'm thinking of a 24" bull barrel, floating handguard (is there a difference between the aluminum and the fiberglass ones?), Harris bipod, flat top, no front sight configuration. I'll use the rifle for informal target shooting up to 500 yards, probably with bullets weights from 50 to 69 grains, and I don't want to load single shot. I live in Paraguay, south america, and the climate here is pretty tropical, so this minimizes the need for a fas-turn rifling, do you think I could get away with a 1 in 10" barrel? Most match barrels (Olympic, Armalite) are either 1 in 10" or 1 in 8". Will I have to adjust headspace with the new upper? Which quality aftermarket trigger could I get? (I'll have to install it myself). Thanks for your help!!