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Swampfox Sentinel II 1x20mm Micro Reflex Sight with 3 MOA Green Dot, RMSc Footprint, and Blackout Rear Sight Guide SNL2120GMS
Product Description
Finding the right micro red dot for your subcompact carry gun usually forces you to make a choice: settle for a tiny, cramped window that makes finding the dot a chore, or use a larger optic that prints through your clothing. The Swampfox Sentinel II 1x20 Micro Green Dot eliminates this trade-off completely. It maintains a slimline profile that perfectly matches today's most popular subcompact pistols while widening the objective lens to a generous 20mm window—providing a massive visibility upgrade over original 16mm micro dots.
Built from rugged 7075-T6 aluminum, the Sentinel II is engineered to withstand the harsh realities of daily concealed carry and heavy surface racking. The standout innovation here is the patented, removable rear sight guide from Night Fision. Installed directly in front of the lens with titanium screws, this clever addition acts as a built-in backup rear iron sight for slimline pistols that lose their factory rear sight when a micro optic is mounted.
Inside the housing, a crisp 3 MOA green dot reticle gives you a precise, bright aiming point that is easy to track under rapid strings of fire. To maximize power efficiency, the optic features Swampfox's signature Shake 'N Wake auto on/off technology, which shuts down the LED after a few minutes of stillness and springs back to life instantly at the slightest movement. Driven by a bottom-mounted CR2032 battery providing up to 50,000 hours of run time, this micro reflex sight keeps your carry platform sleek, fast, and completely reliable.
Each individual factory retail package contains one Swampfox Sentinel II 1x20mm Green Dot Micro Sight, one removable standard blackout rear sight guide, an alignment tool, mounting hardware screws, a rubber protective optic cover, and a premium lens cleaning cloth.
*Armorer Bench Notes & Installation Guidance: The Swampfox Sentinel II (Part # SNL2120GMS) uses the industry-standard RMSc footprint, making it a direct drop-in fit for slimline pistols like the Glock 43X/48 MOS, Sig Sauer P365 series, and Springfield Hellcat. When mounting the optic, ensure the slide's indexing threads are clean and free of old oil or factory thread locker. Secure the mounting screws to a strict 15 in-lbs of torque with a single drop of medium thread-locking compound. Because this model uses a bottom-mounted battery to maximize the window size, you will need to detach the optic to swap the battery down the road, making it vital to re-verify your zero on the range whenever a fresh battery is installed.
Key Features
- Upgraded 20mm Viewing Window: Delivers an exceptionally wide field of view for a micro dot, allowing for much quicker dot recovery during fast strings of fire.
- Patented Rear Sight Guides: Removable, hardened steel rear sight guides provide a reliable backup iron sight landmark for slimline pistols lacking a rear dovetail.
- 7075-T6 Aluminum Housing: Upgraded rugged construction shields the recessed multi-coated lens and protects internal electronics from drop impacts and rough daily use.
- Shake 'N Wake Technology: Motion-activated illumination shuts off automatically after 225 seconds of absolute stillness to preserve battery life during storage.
- 10 Digital Brightness Settings: Features 2 night-vision compatible settings and 8 daylight levels controlled by tactile up/down side buttons.
- Specialty Lens Coatings: Layered with silver anti-fog, hydrophobic, and anti-scratch treatments to ensure clear target tracking in rain, dirt, or dust.
Product Specifications
- Brand: Swampfox Optics
- Product Line: Sentinel II Series
- MPN/SKU: SNL2120GMS
- UPC Barcode: 889157002880
- Magnification: 1x
- Window Dimensions: 20mm Width x 17mm Height
- Footprint Type: RMSc / Standard Slimline
- Reticle Style: 3 MOA Dot
- Reticle Color: Green
- Body Construction: 7075-T6 Billet Aluminum
- Adjustment Increments: 1 MOA Per Click (80 MOA Total Range)
- Waterproof Rating: IPX7 Waterproof
- Shockproof Rating: 1,500 G-Force Certified
- Battery Type: CR2032 (Bottom-Loading)
- Battery Life: Up to 50,000 Hours (On Medium Setting)
- Weight: 0.99 Ounces
