These grips were designed to not protrude out of the sides or front of the XLS. They all can use the provided printed roller using either a m3 screw and nut, the printed rod, a dowel secured by m3 screws or a strip of filament secured by m3 screws.
They are also reversible if your prefer the griping segment in front but this will negate the roller. Okay it will technically negate the roller however it MAY still fit it just likely wont, you know, roll.
Step files will be available via Etsy once the shop is setup.
Printing
All of them can b printed using the slanted segment at the back. If you are worried about things tipping enable organic supports. You can also print them with the flat rail face on the print bed but that REQUIRES supports.
There is still some tweaking to be made with height to get them to sit closer to the bottom of the blaster shell but for now here they are.
Tips
Take a fine grit sandpaper to the spheres that add texture. You should need more than 5-10 seconds of sanding but it will make them smoother and much more comfortable.
Thanks
Special thanks to @RedCowl for encouragement and testing and advice/help as this is my first scratch design in CAD.
The author marked this model as their own original creation.