Rochester Precision Optics (RPO) 4.0 PVS-14 Ultralight Eyepiece Assembly 5A0836 with Nocturn Industries Adjustable Diopter.
**Eye piece lock ring included with each eyepiece**
RPO 4.0 lens cell is 33% lighter than RPO 2.0
RPO Ultralight Optics complete glass assembly is ~48% lighter than Standard Mil-Spec Eyepiece
- RPO Ultralight eyepiece core + Opfor ultralight diopter assembly = 1.1 Ounces
- Standard Mil-Spec eyepiece = 2.1 Ounces




Kev –
Excellent clarity and light transmission. I think itโs better than milspec. Ideal for keeping a bino setup lightweight. 2 things that are different than milspec lenses, 1 While panning right or left there is some noticeable stretching of the image at the very edge, not bad, hard to notice. 2 When looking at something around 3 feet or closer you get an almost magnified effect. This is more noticeable when using an iris. Still a usable image but anything farther away is perfect. ANVB housing, Elbit tubes.