The A.C.D. (Advance Combat Diver) knife is a liner lock folding knife that offers a secure secondary lock for fixed blade like performance. The partially serrated blade is Bohler N690Co stainless steel with a protective black finish. In hand the textured G-10 scales enhance grip in wet environment. The Advance Combat Diver includes a reversible tip-up clip and a hard ABS polymer sheath with a secure lock and leg straps.