This rifle was manufactured by Olympic Arms.

This is the UMAR / U.M.A.R.    The "Ultra Magnum AR."

Olympic Arms was the first company to produce an AR in the hunting round .22-250 Magnum

Being able to fire such a large / long round out of an AR-15 instead of an AR-10 required Olympic to redesign the magazine well, bolt catch, and to create their own magazine for the weapon. 

This particular UMAR comes with two of Olympic's standard 5-round magazines. 

The rifle also has a BSA scope mounted.  The scope is well used and was painted.  The scope is considered free to the buyer and is not part of the price of the rifle. 

****Ships free anywhere in the U.S.