Hi all. Completely new to the AR platform and rifles for that matter, but experienced with handguns, reloading pistol cartridges for 20+ years, and I am a CHP holder. Just ordered my first rifle, a Colt LE6920MP-B from GrabaGun for $879(couldn't resist). Tried to order from Buds first but they don't ship ANY gun that comes with a +15 round magazine to Colorado. Would like to get together with someone to show me the ropes shooting it for the first time.