I explicitly made this to go with the Venom Pro holster I made, but it should work with Blitz Shorta compatible things, including mag holders, among other things.
The tolerances are kind of tight, so be careful when printing. You may have to separate it if your printer merges them together. See the pictures for how to install - you can see examples of it on both the Venom Pro holster, and a Blitz Shorta mag holder. There are two versions of this adapter, with two versions of each. Two belt hole sizes, and two screw types. You can use either an M3 6 or 8mm screw (8mm recommended), or you can use a #4 thread forming screw (common in many Nerf blaster kits). The smaller belt hole will support belts 3mm thick, and the larger will support 5mm. Both will support a belt about 49mm high. Print the version for the belt & screw you want to use.
I recommend printing in PETG for strength but PLA will work. 5 - 8 wall loops, .2 mm layer height, 25% infill is probably ok. More wall loops if you are using something heavier on it.
When assembling, make sure the screw goes all the way into connect the outer section to the inner section, and when screwed in all the way, it will no longer be visible in the belt compartment from the side.
If you need a version for a different belt size let me know and I'll make one.
The author marked this model as their own original creation.