OK all ya'll AR15 experts. I am looking at some longer hand guards in the MagPul line. Will this fit my standard length carbine with the 16" barrel? Can't get anyone on the phone or chat today. The one I have now is 7" http://www.brownells.com/rifle-part...e|In+Stock&psize=96&avs|Manufacturer_1=MAGPUL It's time to buy add ons for the Colt And if it matters I have the "A" frame front sight.