Beretta’s SO5 over-and-under is one of the finest competition shotguns ever made. On the handle of this exceptional steel folding knife, the SO5’s beautifully hand-engraved side plates have been painstakingly matched. 440C stainless steel with an HRC of 56-58 and a satin finish. Leather belt sheath included. Small is 2.38" closed, 3.15" open.