Re: Question for you AR 15 Guys
That barrel shown is a "Government Profile", and on a real military M4 rifle there is a 40mm grenade launcher (see M203) that can be mounted under the rifle barrel using that slot in the barrel as an attaching point. It has little if any real world usefulness on an AR-15 rifle, but some folks want everything to be "mil-spec".
Fear is a reaction..........Courage is a decision
Last edited by Snakedriver; 10-25-2012 at 12:25 PM..