The Mamba is a highly modified Mark IV 22/45 Lite. It has a 7.5 inch barrel with the compensator on it and is very hard to find a holster for.
I haven 't worked with leather for ages so I decided to get back into it during this Corvid crisis. Wow, it's expensive to get back into a hobby after years. Anyway...
Here's a picture of the new holster. It's made of two layers of leather and a felt backing. I may not add the felt to my revolver I'm working on.
The holster also has a tension screw under the trigger guard to keep the gun from falling out while moving. Any comments and critiques are welcome.