The Shield Sights RMSw HD Heavy Duty Red Dot Sight is a rugged, waterproof reflex sight with a 4 MOA dot (brand part no. RMSW-4MOA-HD). A gasket-sealed housing and a heavy duty armor hood add protection for duty use, and a crystal-clear glass lens resists scratches. The sight keeps the standard SHIELD footprint, so it fits a wide range of slides, and the patented mechanism lets you co-witness with standard iron sights. Shield Sights machines the body from aerospace-grade aluminum and keeps the weight to 21 grams without the battery.

Key Specifications

• The dot is 4 MOA, a size that balances fast pickup with a precise aiming point.
• The sight is a 1x reflex with a red LED light source, and it is eye-safe with no laser.
• The lens is a D-shaped glass lens with an anti-reflective hard coating that resists scratches.
• The housing is matte black aerospace-grade aluminum, machined to tight tolerances.
• It is waterproof to IP68, rated for 30 feet of immersion for over 30 minutes.
• Power is one CR2032 battery with about 20,000 hours of life in average daylight, fitted underneath.
• Auto brightness adjustment means the sight can stay on and ready, and the lowest setting works with night vision.
• Weight is 21 grams without the battery and dimensions are 40.8 x 23 x 22.8mm.
• A heavy duty armor hood adds an extra layer of protection for extreme duty use.
• The mechanism has no click adjustments, which Shield says makes zeroing more accurate.

Frequently Asked Questions

What footprint does it use? It uses the standard SHIELD footprint, which Shield says fits a wide range of firearm slides. The retail package includes M4x8mm and M4x10mm screws.

Is it waterproof? Yes. It is rated IP68 for 30 feet of immersion for over 30 minutes.

How long does the battery last? Shield rates it at about 20,000 hours in average daylight on a CR2032.

Buy the Shield Sights RMSw HD Heavy Duty Red Dot Sight, 4 MOA

Pistol slides, carbines and duty guns all take abuse, and the RMSw HD is built for that kind of use. Order it from our Lubbock, Texas gun shop for fast shipping, and look over more red dot sights.