Find a reliable source (like GameBanana) and download the "Skeleton Knife Gradient" pack. It will usually contain files ending in .mdl .

: A "Full Fade" typically features a deep purple tip, transitioning into pink in the middle, and ending in golden yellow near the handle. Pattern Rarity

Based on your request, you are looking for a visual customization for the (likely the default Counter-Terrorist knife skin, re-modeled to look like a skeletal blade, popular in non-Steam or custom editions of CS 1.6 ).

Installing custom skins in CS 1.6 is straightforward, as it does not rely on a central server-side inventory system like CS:GO. 1. Download the Model