The Smith & Wesson HRT "Hostage Rescue Team" Magnesium knife measures 4.564" when closed. Lockup is via a liner lock. Features a 3.645" tactical spearpoint blade of 440C stainless steel with a fine bead blast finish and with a thumb stud for easy one-hand opening. Metal belt/pocket clip. Black contoured Zytel handles and Lanyard hole. Weight: 4.4 oz.