This is my Range-Enhancing Tactical Anti-Reflection Device, or "RETARD" for short.

This part like it name implies, reduces the angle of reflection of of the optic's glass down to a tighter angle. Tested snug fitment on Vortex's Strike Eagle and Sig Sauer's Tango MSR. In theory, it should work on any other LPVO's with 30.1mm objective tubes.

Print in anything that can take high temperatures if you want to put it on a fighting rifle, doesn't necessarily need to be strong filaments as it doesn't take any stress past tapping it onto your optic.