Optic Spacers

These optic spacers are used to separate optics within an SM05 or SM1 lens tube. As an alternative to using a plastic retaining ring, a spacer may be used to prevent direct contact between an anodized aluminum retaining ring and the optic

Stable inverted small molecular organic solar cells using a p-doped optical spacer - Nanoscale (RSC Publishing)

M48 Spacer Ring 5mm - T-rings, T-adapters, Spacers - Camera Adapters - Astrophotography - Sirius Optics

SHOT Show Day 2: Lyman/Mark7, Dillon Precision, Magpul, Girsan

19mm Dovetail Optical Rail Spacers (5 count package)

Audizine Forums

18.8oz total optics and mounts. KRAM FTW. : r/ar15

Red Dot Sight Spacers - Optics-Trade

Shadow Complete, waiting for holster to make it my EDC : r

Lens Spacers, Shims, and Focal Length Extenders

Spacers & Straps - Pole Line Hardware

Optic Spacers