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Swampfox Sentinel II 1x20 Dot Sight, Color: Blackout Rear, Tritium Rear, Battery Type: CR2032, Up to $20.00 Off w/ Free S&H — 4 models

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Swampfox Sentinel II 1x20 Red Dot Sight, 3 MOA, Blackout Rear, SNL2120-RMS
Swampfox Sentinel II 1x20 Red Dot Sight, 3 MOA, Blackout Rear, SNL2120-RMS
Swampfox Sentinel II 1x20 Red Dot Sight, 3 MOA, Blackout Rear, SNL2120-RMS
Swampfox Sentinel II 1x20 Red Dot Sight, 3 MOA, Blackout Rear, SNL2120-RMS
Swampfox Sentinel II 1x20 Red Dot Sight, 3 MOA, Blackout Rear, SNL2120-RMS
Swampfox Sentinel II 1x20 Red Dot Sight, 3 MOA, Blackout Rear, SNL2120-RMS
Swampfox Sentinel II 1x20 Red Dot Sight, 3 MOA, Blackout Rear, SNL2120-RMS
Swampfox Sentinel II 1x20 Red Dot Sight, 3 MOA, Blackout Rear, SNL2120-RMS
Swampfox Sentinel II 1x20 Red Dot Sight, 3 MOA, Blackout Rear, SNL2120-RMS
Swampfox Sentinel II 1x20 Red Dot Sight, 3 MOA, Blackout Rear, SNL2120-RMS
Swampfox Sentinel II 1x20 Red Dot Sight, 3 MOA, Tritium Rear, SNL2120-RMT
Swampfox Sentinel II 1x20 Red Dot Sight, 3 MOA, Blackout Rear, SNL2120-RMS
Swampfox Sentinel II 1x20 Red Dot Sight, 3 MOA, Blackout Rear, SNL2120-RMS
Swampfox Sentinel II 1x20 Green Dot Sight, 3 MOA, Blackout Rear, SNL2120-GMS
Swampfox Sentinel II 1x20 Red Dot Sight, 3 MOA, Tritium Rear, SNL2120-RMT
Swampfox Sentinel II 1x20 Green Dot Sight, 3 MOA, Tritium Rear, SNL2120-GMT
Swampfox Sentinel II 1x20 Red Dot Sight, 3 MOA, Blackout Rear, SNL2120-RMS
Swampfox Sentinel II 1x20 Red Dot Sight, 3 MOA, Blackout Rear, SNL2120-RMS
Swampfox Sentinel II 1x20 Red Dot Sight, 3 MOA, Blackout Rear, SNL2120-RMS
Swampfox Sentinel II 1x20 Red Dot Sight, 3 MOA, Blackout Rear, SNL2120-RMS
Swampfox Sentinel II 1x20 Red Dot Sight, 3 MOA, Blackout Rear, SNL2120-RMS
Swampfox Sentinel II 1x20 Red Dot Sight, 3 MOA, Blackout Rear, SNL2120-RMS
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Swampfox Sentinel II Micro Red Dot Sight
Swampfox Sentinel II 1x20 Red Dot Sight, 3 MOA, Blackout Rear, SNL2120-RMS
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Swampfox Sentinel II 1x20 Red Dot Sight, 3 MOA, Blackout Rear, SNL2120-RMS
Swampfox Sentinel II 1x20 Red Dot Sight, 3 MOA, Blackout Rear, SNL2120-RMS
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Swampfox Sentinel II 1x20 Red Dot Sight, 3 MOA, Blackout Rear, SNL2120-RMS
Swampfox Sentinel II 1x20 Red Dot Sight, 3 MOA, Blackout Rear, SNL2120-RMS
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Swampfox Sentinel II 1x20 Red Dot Sight, 3 MOA, Blackout Rear, SNL2120-RMS
Swampfox Sentinel II 1x20 Red Dot Sight, 3 MOA, Blackout Rear, SNL2120-RMS
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Swampfox Sentinel II 1x20 Red Dot Sight, 3 MOA, Blackout Rear, SNL2120-RMS
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Swampfox Sentinel II 1x20 Red Dot Sight, 3 MOA, Blackout Rear, SNL2120-RMS
Swampfox Sentinel II 1x20 Red Dot Sight, 3 MOA, Blackout Rear, SNL2120-RMS
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Swampfox Sentinel II 1x20 Red Dot Sight, 3 MOA, Blackout Rear, SNL2120-RMS
Swampfox Sentinel II 1x20 Red Dot Sight, 3 MOA, Blackout Rear, SNL2120-RMS
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Swampfox Sentinel II 1x20 Red Dot Sight, 3 MOA, Blackout Rear, SNL2120-RMS
Swampfox Sentinel II 1x20 Red Dot Sight, 3 MOA, Blackout Rear, SNL2120-RMS
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Swampfox Sentinel II 1x20 Red Dot Sight, 3 MOA, Blackout Rear, SNL2120-RMS
Swampfox Sentinel II 1x20 Red Dot Sight, 3 MOA, Blackout Rear, SNL2120-RMS
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Swampfox Sentinel II 1x20 Red Dot Sight, 3 MOA, Blackout Rear, SNL2120-RMS
Swampfox Sentinel II 1x20 Red Dot Sight, 3 MOA, Blackout Rear, SNL2120-RMS
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Swampfox Sentinel II 1x20 Red Dot Sight, 3 MOA, Blackout Rear, SNL2120-RMS
Swampfox Sentinel II 1x20 Red Dot Sight, 3 MOA, Tritium Rear, SNL2120-RMT
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Swampfox Sentinel II 1x20 Red Dot Sight, 3 MOA, Tritium Rear, SNL2120-RMT
Swampfox Sentinel II 1x20 Red Dot Sight, 3 MOA, Blackout Rear, SNL2120-RMS
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Swampfox Sentinel II 1x20 Red Dot Sight, 3 MOA, Blackout Rear, SNL2120-RMS
Swampfox Sentinel II 1x20 Red Dot Sight, 3 MOA, Blackout Rear, SNL2120-RMS
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Swampfox Sentinel II 1x20 Red Dot Sight, 3 MOA, Blackout Rear, SNL2120-RMS
Swampfox Sentinel II 1x20 Green Dot Sight, 3 MOA, Blackout Rear, SNL2120-GMS
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Swampfox Sentinel II 1x20 Green Dot Sight, 3 MOA, Blackout Rear, SNL2120-GMS
Swampfox Sentinel II 1x20 Red Dot Sight, 3 MOA, Tritium Rear, SNL2120-RMT
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Swampfox Sentinel II 1x20 Red Dot Sight, 3 MOA, Tritium Rear, SNL2120-RMT
Swampfox Sentinel II 1x20 Green Dot Sight, 3 MOA, Tritium Rear, SNL2120-GMT
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Swampfox Sentinel II 1x20 Green Dot Sight, 3 MOA, Tritium Rear, SNL2120-GMT
Swampfox Sentinel II 1x20 Red Dot Sight, 3 MOA, Blackout Rear, SNL2120-RMS
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Swampfox Sentinel II 1x20 Red Dot Sight, 3 MOA, Blackout Rear, SNL2120-RMS
Swampfox Sentinel II 1x20 Red Dot Sight, 3 MOA, Blackout Rear, SNL2120-RMS
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Swampfox Sentinel II 1x20 Red Dot Sight, 3 MOA, Blackout Rear, SNL2120-RMS
Swampfox Sentinel II 1x20 Red Dot Sight, 3 MOA, Blackout Rear, SNL2120-RMS
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Swampfox Sentinel II 1x20 Red Dot Sight, 3 MOA, Blackout Rear, SNL2120-RMS
Swampfox Sentinel II 1x20 Red Dot Sight, 3 MOA, Blackout Rear, SNL2120-RMS
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Swampfox Sentinel II 1x20 Red Dot Sight, 3 MOA, Blackout Rear, SNL2120-RMS
Swampfox Sentinel II 1x20 Red Dot Sight, 3 MOA, Blackout Rear, SNL2120-RMS
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Swampfox Sentinel II 1x20 Red Dot Sight, 3 MOA, Blackout Rear, SNL2120-RMS
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Swampfox Sentinel II 1x20 Red Dot Sight, 3 MOA, Blackout Rear, SNL2120-RMS

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Questions & Answers
Is the battery top or bottom mounted ? Expert Answer

The Swampfox Sentinel II 1x20 Dot Sight houses the included 2032 battery on the underside of the optic.

by Ethan, Gear Expert, April 18, 2024
See 1 More Answer
Will this work with the New Smith & Wesson Sheld X i just bought? Any optional parts that would need to be ordered with it to install? Thanks Manufacturer Answer

Yes, the Sentinel II should fit directly to the new Smith & Wesson Shield X using the RMSc footprint.

by Swampfox Optics, Manufacturer, May 13, 2026
View All Q&A You Have a Question? Ask!
Customer Reviews
Helpful Positive Review
Eric M. Colorado by Eric M., Verified Owner, October 29, 2025
Great optic for a fraction of the price. Don't be confused though build quality seems right on par with all the heavy hitters in the industry. Haven't had a chance to put anything down range yet but having the ability to co-witness with the optional ...
Read More...
1/1 found this helpful
Helpful Positive Review
Hunter & shooting enthusiast by Karl, January 31, 2024
Well done Optics Planet. The Sentinel II arrived in only 6 days with USPS. It looks great; not even a scratch on the package. I studied it closely before purchase. The only hitch is backing out the original screws on my Springfield Hellcat.Can't do i...
Read More...
8/9 found this helpful
Helpful Positive Review
Nice optic by Joe M, Verified Owner, September 17, 2024
I was pleasantly surprise with this optic. All the features one expects from an optic these days including shake awake although not having multiple reticles and just a 3 MAO dot. Nice big window in contrast to the Holosun 507K I had. Really like t...
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4/4 found this helpful
Helpful Positive Review
Swampfox Sentinel II by Corey, Verified Owner, April 7, 2024
Very nice sight. I put this on my Springfield Hellcat. Well packaged with everything you will need. Shipped quickly. It was at my house just a couple days after I ordered. Would recommend this
3/4 found this helpful
Helpful Positive Review
Super Beefy by Nick, August 25, 2024
This little dot is a tank. Super thick glass and even thicker housing. I have "ironsides" on my gen 1 justice dot but idk if this dot needs them. Huge improvement ofer the original sentinel. I put one on my CZ P-01 and love it. I had my slide milled ...
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1/1 found this helpful
Helpful Positive Review
Decent Optic by Joe M, Verified Owner, September 26, 2024
Overall I like this optic and its features for the price. Shake awake is important feature to me. Having the ability to mount a rear site turns out to be a nice feature that I've not seen on other optics. Only issue is that the battery compartment ...
Read More...
3/3 found this helpful
Read All 37 Reviews
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Product Info for Swampfox Sentinel II 1x20 Dot Sight

Crafted for concealed carry, Sentinel II showcases a fusion of advanced features in a sleek, cohesive design. This micro dot maintains the standardized RMSc footprint and slimline profile while maximizing visibility with its 20mm window. The most unique feature is the patented removeable rear sight guide installed in front of the window. This guide provides backup support for micro pistols that sacrifice their rear iron sights for dot sight compatibility. Sentinel II displays a 3 MOA dot in either red or green illumination and is equipped with the Shake N Wake auto on/off feature providing a grab-and-go level of readiness.image

Specifications for Swampfox Sentinel II 1x20 Dot Sight:

Manufacturer: Swampfox
Finish: Fully multi-coated
Fabric/Material: 7075 Aluminum
Magnification: 1 - 20 x
Objective Lens Diameter: 20 mm
Reticle: 3 MOA
Brightness Settings: 10
Adjustment Type: MOA
Emitter Type: Open
Field of View, Linear: 105.7 - 18.32 ft at 100 yds
Parallax: Parallax Free
Optical Coating: Multi-Coated/Hydrophobic/Anti-Fog
Battery Type: CR2032
Battery Quantity: 1
Lens Finish: Hydrophobic/Anti-Fog

Features of Swampfox Sentinel II 1x20 Green Dot Sight

  • 20mm objective lens and slim profile for easy concealment on all builds with RMSc optic cut
  • 10 illumination settings with NV compatibility and Shake N' Wake Auto on/off
  • Removeable Rear Sight Guide provides backup support for guiding your eye to the dot as well as coverage for micro pistols that are missing their rear dovetail
  • Rugged enforced hood design with anti-glare serrations
  • Built to last with 7075 Aluminum construction and 1500 Gs shockproof

Package Contents:

  • Swampfox Sentinel II 1x20 Green Dot Sight
  • Slotted Head Wrench
  • Allen Wrench 1.5mm
  • S-Wing Wrench
  • Rubber Cover
  • CR2032 Battery
  • M3x0.5 (Thread Length = 10 mm) - 4pcs
  • #6-32 (Thread Length = 11 mm) - 4pcs
  • M4x0.7 ( Thread Length = 9.8 mmm ) - 4pcs
  • M4x0.7 (Thread Length = 10.8 mm ) - 4pcs
  • M2 (Thread Length = 3mm) - 2pcs
  • PVC Waterproof Plate - 2pcs
  • Black Lens Cloth
  • Tritium Rear Sight Guide

Swampfox Sentinel II 1x20 Dot Sight Orderable Models

List of Orderable Models

  • Swampfox Sentinel II 1x20 Green Dot Sight, 3 MOA, Blackout Rear, SNL2120-GMS , MPN: SNL2120-GMS , UPC: 889157002880 , Code: 3Q9-RD-SENT1-SNL2120-GMS
  • Swampfox Sentinel II 1x20 Red Dot Sight, 3 MOA, Blackout Rear, SNL2120-RMS , MPN: SNL2120-RMS , UPC: 889157002897 , Code: 3Q9-RD-SENT1-SNL2120-RMS
  • Swampfox Sentinel II 1x20 Green Dot Sight, 3 MOA, Tritium Rear, SNL2120-GMT , MPN: SNL2120-GMT , UPC: 889157002903 , Code: 3Q9-RD-SENT1-SNL2120-GMT
  • Swampfox Sentinel II 1x20 Red Dot Sight, 3 MOA, Tritium Rear, SNL2120-RMT , MPN: SNL2120-RMT , UPC: 889157002910 , Code: 3Q9-RD-SENT1-SNL2120-RMT
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