Description SOLD AS A SINGLE DIOPTER THIS IS NOT AN OPTIC JUST THE HOUSING FOR IT Our Lightweight Diopter is meant to replace the Mil-Spec Diopter reducing the weight of the diopter assembly by 55% or the entire mil-spec eyepiece assembly by 15%. Can be used with an Eyepiece locking ring or set screw located on the diopter. Mil-spec Diopter vs Nocturn LW Diopter – 15.7g (.55oz) vs 7.1g (.25oz) Mil-spec Eyepiece and Mil-spec Diopter- 59.7g (2.10oz) Mil-spec Eyepiece and Nocturn LW Diopter – 51.2g (1.80oz) RPO 1.0 and 2.0 Eyepiece and Nocturn LW Diopter – 38.8g (1.36oz) RPO 3.0 Eyepiece and Nocturn LW Diopter – 29.2g (1.03oz)
