This seemed like a space that could use some work, so I made a holster for the Venom Pro. Works pretty well in real world usage. Molle compatible - use the Molle tabs from your favorite model - I use the ones from BlitzShorta and they work pretty well.

[EDIT] Got requests for a left-handed version. Added that here.

Hardware required for either version is a single M3 button head screw (about 20mm) and a M3 nut, and a small length of 3mm shock cord. I might also recommend a lock washer for it as over time the nut can work its way free. The assembly is super straightforward - attach the tab with the screw as shown in the images, then attach the shock cable, ensuring it wraps up and around the notch on the tab, and is tied fairly tightly.

I printed mine in PETG, but PLA will work too probably. .16 layer height, 5 wall loops, 15% infill. Supports required for the holster, but the right-handed tab itself does not require any. Shouldn't need a brim either.

Print instructions are the same for left or right handed, with one exception. Make sure you auto-orient your left-handed tab (or lay on face) such that it sits vertically on the flat end like in the picture from my slicer, and use supports.

Two versions - straight and angled (45 degrees) for cross body or chest mount type situations. Have fun with it, and let me know what you think.

Note that if you have modded your VP such that it affects the front silhouette, this may not work for you as the holster is shaped pretty close to the stock shape. It should work whether you have the stock sight piece on or not, though.

For reference, in the images the gray one is the Left-handed version, and the green one is the Right-handed version. Due to the asymmetrical nature of the blaster itself, I had to find a different catch point for the tab on the left-handed version. The best place seemed like the trigger guard. I tried multiple orientations, this one seems to work the best.