Update 2025-06-10: I had a couple failures actually after testing in several games. Changes
This is a sturdy toolless fore grip for picatinny rails. I use this for nerf for pumping springers. In the screw cap is an 8-32 nut socket designed for the Lynx blaster plunger to help put on the nylocks.
Try 10 walls 25% infill. It's important that the area near the picatinny is solid.
Included is my bambu studio plate with the fuzzy skin modifier already enabled.
Add in the foregrip body, it should be upright.
Right click→ Add modifier→ Load. and select the fuzzy skin modifier stl

Select the fuzzy skin object on the left side, and enable fuzzy skin → contours

Lay it down on its flat side for printing

Skin should now be shown in the Preview pane

I used this custom 3d printed thread profile from https://github.com/dans98/Fusion-360-FDM-threads which makes some really nice threads designed for 3d printing.
I would love to see your makes and what blasters you use them on! Any feedback is appreciated.
The author marked this model as their own original creation.