Picatinny Aperture Sights
thingiverse
These iron sights allow more accurate sighting than cheap red dots and most other printable options out there. Four heights of front sight should enable use at a range of ballistic properties. Hardware is somewhat optional, but there is space for a 4-40 screw as the front sight post and 10-32 screws to lock the sights into picatinny. The height options are measured below a level plane with the rear sight.
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