Swampfox Snl2120-Gms Sentinel Ii Black 1X20Mm 3 Moa Green Laser

The Swampfox Sentinel II is a second-generation micro red dot sight engineered for shooters who demand a lightweight, versatile optic that works equally well on concealed-carry pistols and competition guns. This 1x20mm electronic sight pairs a clean, unobstructed sight picture with the 3 MOA dot available in either red or green illumination—your choice depending on lighting conditions and personal preference. The Sentinel II's real innovation is its patented removable rear sight guide: installed right in front of the lens window, it serves as a backup iron sight for carry pistols that run this optic in place of traditional rear sights. That means you're never defenseless if the dot fails.

Built on the standardized RMSc footprint, the Sentinel II maintains the slimline profile serious shooters expect, but with a larger 20mm lens window than the original. That extra glass translates directly to better visibility in low light and faster target acquisition at close range. The optic is waterproof to IPX 7 rating and includes Shake N' Wake auto on/off—a motion-sensing feature that fires up the sight when you draw and powers it down during storage, so you're not babysitting battery life.

Battery endurance is solid: a single CR2032 will run the sight for up to 50,000 hours. The lens is multi-coated with hydrophobic and anti-fog treatment to stay clear in nasty weather. Elevation and windage adjust across 80 MOA, parallax is negligible at 33 yards, and the sight will handle the recoil punishment of duty weapons and magnums alike, rated to 1500 G forces. Whether you're setting up a carry gun, a home-defense rifle, or a range toy, the Sentinel II offers the backup sight insurance and no-compromise durability that fits the Swampfox reputation.

Key Features

• 3 MOA illuminated dot in green laser for rapid target acquisition
• Patented removable rear sight guide provides backup iron sight support
• 1x magnification with larger 20mm objective lens window for enhanced visibility
• RMSc footprint mount—industry standard for micro dots
• Shake N' Wake auto on/off conserves battery life between deployments
• IPX 7 waterproof; multi-coated, hydrophobic, anti-fog optics
• 10 brightness settings for any lighting condition
• 80 MOA elevation and windage adjustment range
• Rated to 1500 G forces impact resistance

Specifications

Frequently Asked Questions

What guns is the Sentinel II compatible with?

The Sentinel II mounts via the RMSc footprint, which is the industry standard for micro red dots. Any slide or mounting surface drilled and tapped for RMSc is compatible—this includes most modern polymer-frame pistols and many AR platforms. Check your firearm's documentation to confirm RMSc compatibility before purchase.

Can I use the Sentinel II as a backup if my main sighting system fails?

Yes. The patented removable rear sight guide built into the front of the window serves as a backup iron sight, so you can still aim and shoot if the green laser dot goes dark or the battery dies. This is one of the Sentinel II's signature features for defensive carry applications.

How long does the CR2032 battery last?

A single CR2032 battery will power the sight for up to 50,000 hours. The Shake N' Wake auto on/off feature further extends battery life by activating the sight only when motion is detected, so the battery isn't draining during storage.

Is the rear sight guide removable?

Yes, the rear sight guide is removable. It comes standard and can be taken off if you prefer a completely unobstructed sight picture, though leaving it installed gives you that backup iron sight option at no penalty to visibility through the 20mm window.