Pretty new to the AR, I’m about to finish my first one with a flat top upper and a 20 in. barrel. At the same time I would like to get some aftermarket hand guards but the choices are overwhelming,
First Question – the hand guards never list a Length and if they do I’m not sure how long I need, is the “rifle length” made for 20 in. barrels and the “carbine length” made for shorter barrels?
Second Question – how much does the free floating hand guard affect the accuracy, and if I go with the free floating, sometimes I see end caps for sale, sometimes I don’t, how do I know if they are needed.
Lastly – how does all this fit into or over the gas system, I had planned on keeping the standard front site with bayonet lug , but honestly I’m not sure what my other options are? I want to put a scope on the flat top, is it difficult to change the front site/gas system after the fact?
That should do it, thanks for all the help.