Ruger GP100 Custom Hand Tooled Holster. This holster is hand carved to suit. Contact me with your ideas and see your idea come to life in a unique one of a kind design. This holster is constructed out of 9/10 ounce Hermann Oak leather with a 2 ounce liner. Since this is a custom holster, you can choose the draw angle, be it vertical, forward leaning, or reverse leaning.