by Guy J. Sagi posted on January 11, 2012 Guns Support NRA Shooting Illustrated DONATE The Adcor B.E.A.R. is a piston-driven AR with a host of unique features. In this article ADCOR, AR-15, piston Related Stories LWRCI IC-A5 Carbine Video Watch: Caracal USA 814 & 816 Rifles Rifle Roundup: PWS MK114 MOD 2-M Rock River Arms LAR-PDS Gallery CMMG and Faxon Piston AR Review Most Popular Why Choose An Enclosed Emitter Red Dot Sight? Lessons Learned Pro Shop: Turn Your 10/22 Up To Ten How To Install A Rifle Scope Fightin' Iron: The Special .44 Ask, Tell, Make