Buck Rush Assisted Opening Knife Includes Knife, Box, and Warranty Registration Card The Buck Rush features Buck's Patent Pending ASAP Assisted Opening Technology. The Rush Comes with a Skeletonized Anodized Aluminum handle in a Midnight Blue Color The blade is constructed out of 420 HC Stainless Steel, with a 3-3/4" partially serrated blade This item is not for sale in some specific zip codes