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 New Pistol Caliber Carbines for 2025 SCCY Closes its Doors New Lever Action Rifles for 2025 New Concealed Carry Pistols for 2025 New Big Bore Rifles for 2025 New Double Stack 1911s for 2025