Single red bead sight on the concave matte solid rib, 2 3/4 inch chambers, WS-1/WS-2 chokes, and ejectors. The left rear barrel is marked "WINCHESTER - 20 GAUGE/2 3/4 CHAM." The bottoms of the barrels are Winchester proof steel marked, choke marked, and have the matching serial number and two Winchester oval proofs on the barrel flat. The right side of the water table is marked with the patent numbers, and the left side is marked "MADE IN U.S.A. MODEL 21/WINCHESTER REPEATING ARMS CO./NEW HAVEN, CONN." All blue finish, single trigger with selector, tang mounted manual safety with gold "SAFE" and mounted with an extra fancy walnut beavertail forearm and multi-point checkered pistol grip stock with a plastic Pachmayr grip cap and solid Winchester recoil pad. Barrel and stock measurements are: bore diameter at 9 inches from breech .612/.610 inch; bore constriction .005/.005 inch; minimum wall thickness .028/.030 inch; drop at comb 1 9/16 inches; drop at heel 2 5/8 inches; length of pull 13 inches; cast neutral.