You could not upgrade this holster. Would make an excellent addition to your high end Japaneses collection.The item "WWII Japanese Uber Rare Baby Nambu Snake Skin Holster Original" is in sale since Sunday, May 9, 2021. This item is in the category "Collectibles\Militaria\WW II (1939-45)\Original Period Items\Japan\Other Japanese WWII Orig Items". The seller is "sewick_28" and is located in Middleburg, Pennsylvania. This item can be shipped to United States.