New AR15 and Marine Urine issues

FireArmsResQ http://www.youtube.com/user/FireArmsResQ?blend=3&ob=video-mustangbase Lambdog 76 http://www.youtube.com/user/lambdog76 GearHog.com 20" Hbar barrel US palm grip Spikes punisher lower/upper and BCG Troy extreme 15" rail and medevil muzzle brake Vortex crossfire 4-12x40 weaver mounts