Will Munny;c-9549067 said:
How much difference is there in a 16", 18", and 20" barrels on an AR? I'm kinda thinking I should just get a longer barrel and put a scope on it. It just doesn't make sense for me to have red dot and short barrel for what I'm gonna be mostly using my AR for, but what I'm doing exactly what I wanted to avoid by buying a cheapie AR and then upgrading parts. I really regret not doing more research and saving up for something a little nicer.
depends on what caliber and how far u plan on shooting (and also what u plan on shooting)
if it's .223/5.56, then a 16" barrel is fine.......u can take it to 500yds
if u want to get a little further and maximize the use of a long range scope, u could even get a 18" .223 Wylde barrel with an upper and take it out to 800yds (but ballistically u ain't doing much with a .223/5.56 at 800 yds)
otherwise if u shoot .308 and above it's not uncommon to see semi autos and even bolt action rifles with a chassis in an AR style.......so it really depends on what u really are ultimately trying to do with it
if u just gon hunt small game with a .223 than ur standard 16" barrel should be more than enough.....otherwise consider a full size rifle like the M16 spec, or even consider shooting another caliber