Official USMC 3.5" Tanto Blade Tactical Edc Black Spring-Assist Folding Pocket Knife - Tophatter's Guns'N'Weapons StoreUnited States Marines EDC pocket knife for sale. Our USMC knife is top quality and low wholesale knife price. The cool knife design is very nice. This is a great knife to give to your loved one as a gift. The spring assisted knife overall open length is 8. 25 inches long. Blade is made from 3cr13 steel and length of the blade is 3. 5 inches. The anodized aluminum handle is 4. 75 inches long. Pocket clip is attached to the back side of the handle.