Front sites
thingiverse
A few different front sites. I remixed & use them for my Caliburn, but I imagine they'd work in other applications. Heck, some might work as rear sights as well depending on what you've got going on.
Download Model from thingiverse
With this file you will be able to print Front sites with your 3D printer. Click on the button and save the file on your computer to work, edit or customize your design. You can also find more 3D designs for printers on Front sites .