The Shield RMSx 4 MOA reflex sight (MPN RMSX-4MOA-GLASS) is the largest-window model in Shield’s mini reflex lineup, built in the scratch-resistant Glass Edition.

Key Specifications

• A true 1x reflex sight supports fast, both-eyes-open target engagement.
• The 4 MOA red dot balances a fast sight picture with precision.
• The RMS XL model designation refers to its enlarged viewing window compared to Shield’s more compact RMSc.
• This is the Glass Edition, built with a scratch-resistant glass lens rather than a polymer lens.
• It is an open-emitter mini reflex design, distinct from Shield’s enclosed AMS line.
• It is classified as a Reflex-type red dot sight.

Frequently Asked Questions

What does the XL in RMS XL mean?

It refers to the enlarged viewing window compared to Shield’s more compact RMSc, giving a wider field of view for target acquisition.

What is the Glass Edition?

It is the version of the sight built with a scratch-resistant glass lens rather than Shield’s polymer lens options.

Is this an enclosed-emitter sight?

No, it is an open-emitter mini reflex design, distinct from Shield’s enclosed AMS line.

Buy the Shield RMSx Glass Edition Mini Reflex Sight, 4 MOA

See more from Shield Sights or shop other red dot sights at Schaefer Defense.