THIS CUSTOM E. ARTHUR BROWN CO. EABCO CUSTOM RUGER MODEL 10/22 CARBINE SEMI AUTOMATIC CHAMBERED IN THE .17 MACH 2 CARTRIDGE!..STAINLESS FINISH ON THE FRAME, RECEIVER, AND EABCO 18" BULL BARREL…LARGE BLACK HEAVY BOLT HANDLE…NIKON P-223 OPTIC ON TOP