If he just wants them for protection from scuffing when traveling they aren't hard to make. I made 2 for DH. I took the guns and laid them on the cutting table. I made them out of fleece since he just wanted them for protection when taking to the range. Basically I traced the shape of the gun then drew the lines straight to make a elongated triangle shape. Made a flap on the top that folds over and closes with Velcro.
DH is always asking me for strange things like upholstery for antique cars or tool bags for the truck. He doesn't complain about all I spend on my hobby so I figure I can make a few things for him.
good luck