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Shield Sights SMSc Compact Shield 1x21.85mm Mini Reflex Red Dot Sight, Color: Black, FDE, Battery Type: CR2032, Lithium Metal, 3V Lithium, Up to 35% Off, Blazin' Deal w/ Free S&H — 6 models

Shield Sights Compact Shield Mini Red Dot Sight, 4 MOA Dot Reticle, SMSC-4MOA Polymer Lens, Black, SMSc-4MOA-POLYMER
Shield Sights Compact Reflex Mini Red Dot Sight, 8 MOA Dot Reticle, RMSx-8MOA Glass Lens, FDE, NSN LN, SMSc-8 MOA-GLASS FDE
Shield Sights Compact Reflex Mini Red Dot Sight, 8 MOA Dot Reticle, RMSx-8MOA Glass Lens, FDE, NSN LN, SMSc-8 MOA-GLASS FDE
Shield Sights Compact Reflex Mini Red Dot Sight, 8 MOA Dot Reticle, RMSx-8MOA Glass Lens, FDE, NSN LN, SMSc-8 MOA-GLASS FDE
Shield Sights Compact Shield Mini Red Dot Sight, 4 MOA Dot Reticle, SMSC-4MOA Glass Lens, FDE, SMSc-4MOA-GLASS FDE
Shield Sights Compact Shield Mini Red Dot Sight, 4 MOA Dot Reticle, SMSC-4MOA Glass Lens, FDE, SMSc-4MOA-GLASS FDE
Shield Sights Compact Shield Mini Red Dot Sight, 4 MOA Dot Reticle, SMSC-4MOA Glass Lens, FDE, SMSc-4MOA-GLASS FDE
Shield Sights Compact Shield Mini Red Dot Sight, 4 MOA Dot Reticle, SMSC-4MOA Glass Lens, FDE, SMSc-4MOA-GLASS FDE
Shield Sights Compact Shield Mini Red Dot Sight, 4 MOA Dot Reticle, SMSC-4MOA Polymer Lens, Black, SMSc-4MOA-POLYMER
Shield Sights Compact Shield Mini Red Dot Sight, 4 MOA Dot Reticle, SMSC-4MOA Glass Lens, FDE, SMSc-4MOA-GLASS FDE
Shield Sights Compact Shield Mini Red Dot Sight, 4 MOA Dot Reticle, SMSC-4MOA Glass Lens, FDE, SMSc-4MOA-GLASS FDE
Shield Sights Compact Shield Mini Red Dot Sight, 4 MOA Dot Reticle, SMSC-4MOA Glass Lens, FDE, SMSc-4MOA-GLASS FDE
Shield Sights Compact Shield Mini Red Dot Sight, 4 MOA Dot Reticle, SMSC-4MOA Glass Lens, FDE, SMSc-4MOA-GLASS FDE
Shield Sights Compact Shield Mini Red Dot Sight, 4 MOA Dot Reticle, SMSC-4MOA Polymer Lens, Black, SMSc-4MOA-POLYMER
Shield Sights Compact Shield Mini Red Dot Sight, 8 MOA Dot Reticle, SMSC-8MOA Polymer Lens, Black, SMSc-8MOA-POLYMER
Shield Sights Compact Shield Mini Red Dot Sight, 4 MOA Dot Reticle, SMSC-4MOA Glass Lens, FDE, SMSc-4MOA-GLASS FDE
Shield Sights Compact Shield Mini Red Dot Sight, 4 MOA Dot Reticle, SMSC-4MOA Polymer Lens, Black, SMSc-4MOA-POLYMER
Shield Sights Compact Shield Mini Red Dot Sight, 4 MOA Dot Reticle, SMSC-4MOA Polymer Lens, Black, SMSc-4MOA-POLYMER
Shield Sights Compact Shield Mini Red Dot Sight, 4 MOA Dot Reticle, SMSC-4MOA Polymer Lens, Black, SMSc-4MOA-POLYMER
Shield Sights Compact Shield Mini Red Dot Sight, 4 MOA Dot Reticle, SMSC-4MOA Polymer Lens, Black, SMSc-4MOA-POLYMER
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Shield Sights Compact Shield Mini Red Dot Sight, 4 MOA Dot Reticle, SMSC-4MOA Polymer Lens, Black, SMSc-4MOA-POLYMER
Shield Sights Compact Reflex Mini Red Dot Sight, 8 MOA Dot Reticle, RMSx-8MOA Glass Lens, FDE, NSN LN, SMSc-8 MOA-GLASS FDE
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Shield Sights Compact Reflex Mini Red Dot Sight, 8 MOA Dot Reticle, RMSx-8MOA Glass Lens, FDE, NSN LN, SMSc-8 MOA-GLASS FDE
Shield Sights Compact Reflex Mini Red Dot Sight, 8 MOA Dot Reticle, RMSx-8MOA Glass Lens, FDE, NSN LN, SMSc-8 MOA-GLASS FDE
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Shield Sights Compact Reflex Mini Red Dot Sight, 8 MOA Dot Reticle, RMSx-8MOA Glass Lens, FDE, NSN LN, SMSc-8 MOA-GLASS FDE
Shield Sights Compact Reflex Mini Red Dot Sight, 8 MOA Dot Reticle, RMSx-8MOA Glass Lens, FDE, NSN LN, SMSc-8 MOA-GLASS FDE
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Shield Sights Compact Reflex Mini Red Dot Sight, 8 MOA Dot Reticle, RMSx-8MOA Glass Lens, FDE, NSN LN, SMSc-8 MOA-GLASS FDE
Shield Sights Compact Shield Mini Red Dot Sight, 4 MOA Dot Reticle, SMSC-4MOA Glass Lens, FDE, SMSc-4MOA-GLASS FDE
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Shield Sights Compact Shield Mini Red Dot Sight, 4 MOA Dot Reticle, SMSC-4MOA Glass Lens, FDE, SMSc-4MOA-GLASS FDE
Shield Sights Compact Shield Mini Red Dot Sight, 4 MOA Dot Reticle, SMSC-4MOA Glass Lens, FDE, SMSc-4MOA-GLASS FDE
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Shield Sights Compact Shield Mini Red Dot Sight, 4 MOA Dot Reticle, SMSC-4MOA Glass Lens, FDE, SMSc-4MOA-GLASS FDE
Shield Sights Compact Shield Mini Red Dot Sight, 4 MOA Dot Reticle, SMSC-4MOA Glass Lens, FDE, SMSc-4MOA-GLASS FDE
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Shield Sights Compact Shield Mini Red Dot Sight, 4 MOA Dot Reticle, SMSC-4MOA Glass Lens, FDE, SMSc-4MOA-GLASS FDE
Shield Sights Compact Shield Mini Red Dot Sight, 4 MOA Dot Reticle, SMSC-4MOA Glass Lens, FDE, SMSc-4MOA-GLASS FDE
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Shield Sights Compact Shield Mini Red Dot Sight, 4 MOA Dot Reticle, SMSC-4MOA Glass Lens, FDE, SMSc-4MOA-GLASS FDE
Shield Sights Compact Shield Mini Red Dot Sight, 4 MOA Dot Reticle, SMSC-4MOA Polymer Lens, Black, SMSc-4MOA-POLYMER
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Shield Sights Compact Shield Mini Red Dot Sight, 4 MOA Dot Reticle, SMSC-4MOA Polymer Lens, Black, SMSc-4MOA-POLYMER
Shield Sights Compact Shield Mini Red Dot Sight, 4 MOA Dot Reticle, SMSC-4MOA Glass Lens, FDE, SMSc-4MOA-GLASS FDE
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Shield Sights Compact Shield Mini Red Dot Sight, 4 MOA Dot Reticle, SMSC-4MOA Glass Lens, FDE, SMSc-4MOA-GLASS FDE
Shield Sights Compact Shield Mini Red Dot Sight, 4 MOA Dot Reticle, SMSC-4MOA Glass Lens, FDE, SMSc-4MOA-GLASS FDE
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Shield Sights Compact Shield Mini Red Dot Sight, 4 MOA Dot Reticle, SMSC-4MOA Glass Lens, FDE, SMSc-4MOA-GLASS FDE
Shield Sights Compact Shield Mini Red Dot Sight, 4 MOA Dot Reticle, SMSC-4MOA Glass Lens, FDE, SMSc-4MOA-GLASS FDE
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Shield Sights Compact Shield Mini Red Dot Sight, 4 MOA Dot Reticle, SMSC-4MOA Glass Lens, FDE, SMSc-4MOA-GLASS FDE
Shield Sights Compact Shield Mini Red Dot Sight, 4 MOA Dot Reticle, SMSC-4MOA Glass Lens, FDE, SMSc-4MOA-GLASS FDE
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Shield Sights Compact Shield Mini Red Dot Sight, 4 MOA Dot Reticle, SMSC-4MOA Glass Lens, FDE, SMSc-4MOA-GLASS FDE
Shield Sights Compact Shield Mini Red Dot Sight, 4 MOA Dot Reticle, SMSC-4MOA Polymer Lens, Black, SMSc-4MOA-POLYMER
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Shield Sights Compact Shield Mini Red Dot Sight, 4 MOA Dot Reticle, SMSC-4MOA Polymer Lens, Black, SMSc-4MOA-POLYMER
Shield Sights Compact Shield Mini Red Dot Sight, 8 MOA Dot Reticle, SMSC-8MOA Polymer Lens, Black, SMSc-8MOA-POLYMER
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Shield Sights Compact Shield Mini Red Dot Sight, 8 MOA Dot Reticle, SMSC-8MOA Polymer Lens, Black, SMSc-8MOA-POLYMER
Shield Sights Compact Shield Mini Red Dot Sight, 4 MOA Dot Reticle, SMSC-4MOA Glass Lens, FDE, SMSc-4MOA-GLASS FDE
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Shield Sights Compact Shield Mini Red Dot Sight, 4 MOA Dot Reticle, SMSC-4MOA Glass Lens, FDE, SMSc-4MOA-GLASS FDE
Shield Sights Compact Shield Mini Red Dot Sight, 4 MOA Dot Reticle, SMSC-4MOA Polymer Lens, Black, SMSc-4MOA-POLYMER
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Shield Sights Compact Shield Mini Red Dot Sight, 4 MOA Dot Reticle, SMSC-4MOA Polymer Lens, Black, SMSc-4MOA-POLYMER
Shield Sights Compact Shield Mini Red Dot Sight, 4 MOA Dot Reticle, SMSC-4MOA Polymer Lens, Black, SMSc-4MOA-POLYMER
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Shield Sights Compact Shield Mini Red Dot Sight, 4 MOA Dot Reticle, SMSC-4MOA Polymer Lens, Black, SMSc-4MOA-POLYMER
Shield Sights Compact Shield Mini Red Dot Sight, 4 MOA Dot Reticle, SMSC-4MOA Polymer Lens, Black, SMSc-4MOA-POLYMER
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Shield Sights Compact Shield Mini Red Dot Sight, 4 MOA Dot Reticle, SMSC-4MOA Polymer Lens, Black, SMSc-4MOA-POLYMER

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Questions & Answers
Will this fit the FN Reflex Manufacturer Answer

Yes the Reflex MRD has our SHIELD RMSc footprint cut into the slide for a direct fitment

by Shield Sights Ltd, Manufacturer, August 5, 2025
See 2 More Answers
does this work with the Ruger security.380 lite Rack? Manufacturer Answer

The Ruger will require an interface plate to mount an optic, there are several 3rd party manufacturers who are making them. We unfortunately do not.

by Shield Sights Ltd, Manufacturer, July 24, 2025
View All Q&A You Have a Question? Ask!
Customer Reviews
Helpful Positive Review
Seems great but... by Springfield, Verified Owner, March 12, 2023
Very nice product came with a cover which I also wasn't expected so bonus. purchased for a hellcat osp. The directions are terrible for assembly to firearms. They are just awful. Went to YouTube which had very few directions of how people actually pu...
Read More...
5/11 found this helpful
Helpful Positive Review
Bought for a Hellcat Pro by Mike, Verified Owner, December 2, 2023
Bought this specifically for my Hellcat Pro as this is the sight that fits it the best. No overhang, clean smooth edges with no gaps. Looks great on the gun. Reticle is a little blurry for my liking but not enough for me to not use it on an EDC firea...
Read More...
3/3 found this helpful
Helpful Positive Review
Compact for Hellcat Pro by John, October 25, 2023
This optic is a direct fit on the Hellcat/Hellcat Pro. It has a small notch in the frame to allow you to use the factory sights. The larger 8moa dot allows for faster target acquisition instead of trying to find a small 2moa or 3moa dot.
1/1 found this helpful
Helpful Positive Review
Shield SMSc 4 MOA by Larry G, December 29, 2023
Simple to install! Originally ordered a 8 MOA but opted for the 4. I’m glad I did! More precise. Great red dot. Only thing I wish it would automatically shut off and shake to wake. But the battery lasts 3 years and it’s always at the ready on p...
Read More...
1/1 found this helpful
Helpful Positive Review
Excellent quality by Hellcat osp, November 5, 2023
Bought this for a hellcat osp and it fits like a glove, nice 8moa!! The glass lens is very clear and clean, excellent quality!
2/2 found this helpful
Helpful Negative Review
The glass lens may be better? by Johnny RC, February 14, 2023
The sight itself is sturdy, once zeroed it holds POA well. Easy install. The CLEAR, Non tinted lens is nice, bigger field of view than the sig sights I have. Comes in a nice case, clear instructions, and tools for everything. HOWEVER, FIRST TRIP...
Read More...
8/8 found this helpful
Read All 16 Reviews

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Product Info for Shield Sights SMSc Compact Shield 1x21.85mm Mini Reflex Red Dot Sight

Made from tough, durably polymer, the Shield Sights Compact Shield Mini is a step above the rest when it comes to pistol Red Dot Sights. It is the perfect option for small, single-stack pistols and everyday carry options, and its iconic, minimalist design allows shooters to co-witness with standard iron sights, further improving accuracy. It has a battery life of 2 to 3 years, so you don't have to worry about the sight failing you when you need it most. Plus, the variety of illumination settings makes the Compact Shield Mini compatible with night vision at the lowest setting and visible against the sun during the day on the brightest setting. You can't go wrong with the versatility and strength of this red dot sight, so pick one up today!image

Specifications for Shield Sights SMSc Compact Shield 1x21.85mm Mini Reflex Red Dot Sight:

Manufacturer: Shield Sights
Magnification: 1 x
Illumination Type: LED
Illumination Color: Red
Eye Relief: Unlimited
Adjustment Type: MOA
Adjustment Click Value: 1 MOA
Emitter Type: Open
Weight: 0.61 oz
Condition: New
Condition Quality: Excellent
Condition Details: Other
Quantity: 1

Features of Shield Sights SMSc Compact Shield 1x21.85mm Mini Reflex Red Dot Sight

  • Mounts to SHIELDs famous footprint.
  • Utilizes SHIELDs patented mechanism, enabling co-witnessing with standard iron sights, considerably reducing training times and costs.
  • The mechanism uses no click adjustment, making it infinitely more accurate when zeroing.
  • Crafted from reinforced nylon glass-filled polymer
  • Auto brightness adjustment, so it can always be on and ready.

Package Contents:

  • Shield Sights SMSc Compact Shield 1x21.85mm Mini Reflex Red Dot Sight

Shield Sights SMSc Compact Shield 1x21.85mm Mini Reflex Red Dot Sight Orderable Models

List of Orderable Models

  • Shield Sights Compact Shield Mini Red Dot Sight, 4 MOA Dot Reticle, SMSC-4MOA Polymer Lens, Black, SMSC-4MOA-POLY , MPN: SMSC-4MOA-POLY , UPC: 0794712615132 , Code: 3CI-RD-CS48MR-SMSC-4MOA-POLY
  • Shield Sights Compact Shield Mini Red Dot Sight, 4 MOA Dot Reticle, SMSC-4MOA Glass Lens, Black, SMSc-4MOA-GLASS , MPN: SMSc-4MOA-GLASS , UPC: 794712615163 , Code: 3CI-RD-CS48MR-SMSC-4MOA-GLASS
  • Shield Sights Compact Reflex Mini Red Dot Sight, 8 MOA Dot Reticle, RMSx-8MOA Glass Lens, FDE, SMSC-8MOA-GLASS-FDE , MPN: SMSC-8MOA-GLASS-FDE , UPC: 754590543620 , Code: 3CI-RD-CS48MR-SMSC-8MOA-GLASS-FDE
  • Shield Sights Compact Shield Mini Red Dot Sight, 8 MOA Dot Reticle, SMSC-8MOA Polymer Lens, Black, SMSC-8MOA-POLY , MPN: SMSC-8MOA-POLY , UPC: 794712615149 , Code: 3CI-RD-CS48MR-SMSC-8MOA-POLY
  • Shield Sights Compact Shield Mini Red Dot Sight, 4 MOA Dot Reticle, SMSC-4MOA Glass Lens, FDE, SMSC-4MOA-GLASS-FDE , MPN: SMSC-4MOA-GLASS-FDE , UPC: 754590543613 , Code: 3CI-RD-CS48MR-SMSC-4MOA-GLASS-FDE
  • Shield Sights Compact Shield Mini Red Dot Sight, 8 MOA Dot Reticle, SMSC-8MOA Glass Lens, Black, SMSc-8MOA-GLASS , MPN: SMSc-8MOA-GLASS , UPC: 0794712615170 , Code: 3CI-RD-CS48MR-SMSC-8MOA-GLASS

Shield Sights SMSc Compact Shield 1x21.85mm Mini Reflex Red Dot Sight Unavailable & Discontinued Models

List of Unorderable Models

  • DEMO, Shield Sights Compact Shield Mini Red Dot Sight, 8 MOA Dot Reticle, SMSC-8MOA Polymer Lens, Black, SMSc-8MOA-POLYMER , MPN: SMSc-8MOA-POLYMER-DEMO , Code: 3CI-RD-CS48MR-SMSc-8MOA-POLYMER-DEMO
  • USED Shield Sights Compact Shield Mini Red Dot Sight, 4 MOA Dot Reticle, SMSC-4MOA Polymer Lens, Black, SMSc-4MOA-POLYMER, EDEMO3, Condition Parts Only/Salvage, Defective , MPN: SMSc-4MOA-POLYMER-EDEMO3 , Code: 3CI-RD-CS48MR-SMSc-4MOA-POLYMER-EDEMO-DF-F
  • USED, Shield Sights Compact Shield Mini Red Dot Sight, 4 MOA Dot Reticle, SMSC-4MOA Polymer Lens, Black, SMSc-4MOA-POLYMER , MPN: SMSc-4MOA-POLYMER-EDEMO , Code: 3CI-RD-CS48MR-SMSc-4MOA-POLYMER-EDEMO-RE-C
  • USED, Shield Sights Compact Shield Mini Red Dot Sight, 4 MOA Dot Reticle, SMSC-4MOA Polymer Lens, Black, SMSC-4MOA-POLY , MPN: SMSC-4MOA-POLY-EDEMO , Code: 3CI-RD-CS48MR-SMSC-4MOA-POLY-EDEMO-OB-B
  • USED, Shield Sights Compact Shield Mini Red Dot Sight, 4 MOA Dot Reticle, SMSC-4MOA Glass Lens, Black, SMSc-4MOA-GLASS , MPN: SMSc-4MOA-GLASS-EDEMO , Code: 3CI-RD-CS48MR-SMSC-4MOA-GLASS-EDEMO-OB-C
  • DEMO, Shield Sights Compact Shield Mini Red Dot Sight, 4 MOA Dot Reticle, SMSC-4MOA Polymer Lens, Black, SMSc-4MOA-POLYMER , MPN: SMSc-4MOA-POLYMER-DEMO , Code: 3CI-RD-CS48MR-SMSc-4MOA-POLYMER-DEMO
  • USED Shield Sights Compact Shield Mini Red Dot Sight, 8 MOA Dot Reticle, SMSC-8MOA Glass Lens, Black, SMSc-8MOA-GLASS, EDEMO4, Used, Condition Like New, Open Box , MPN: SMSc-8MOA-GLASS-EDEMO4 , Code: 3CI-RD-CS48MR-SMSc-8MOA-GLASS-EDEMO-OB-A
  • USED, Shield Sights Compact Shield Mini Red Dot Sight, 4 MOA Dot Reticle, SMSC-4MOA Glass Lens, Black, SMSc-4MOA-GLASS , MPN: SMSc-4MOA-GLASS-EDEMO , Code: 3CI-RD-CS48MR-SMSc-4MOA-GLASS-EDEMO-RE-B
  • DEMO, Shield Sights Compact Shield Mini Red Dot Sight, 4 MOA Dot Reticle, SMSC-4MOA Glass Lens, Black, SMSc-4MOA-GLASS , MPN: SMSc-4MOA-GLASS-DEMO , Code: 3CI-RD-CS48MR-SMSc-4MOA-GLASS-DEMO
  • Open Box, Dealer Demo, Shield Sights Compact Shield Mini Red Dot Sight, 8 MOA Dot Reticle, SMSC-8MOA Polymer Lens, Black, SMSc-8MOA-POLYMER , MPN: SMSc-8MOA-POLYMER-DMO , Code: 3CI-RD-CS48MR-SMSc-8MOA-POLYMER-DMO
  • Open Box, Dealer Demo, Shield Sights Compact Shield Mini Red Dot Sight, 8 MOA Dot Reticle, SMSC-8MOA Glass Lens, Black, SMSc-8MOA-GLASS , MPN: SMSc-8MOA-GLASS-DMO , Code: 3CI-RD-CS48MR-SMSc-8MOA-GLASS-DMO
  • USED Shield Sights Compact Shield Mini Red Dot Sight, 4 MOA Dot Reticle, SMSC-4MOA Glass Lens, Black, SMSc-4Moa G, EDEMO2, Condition Parts Only/Salvage, Wrong Product , MPN: SMSc-4Moa G-EDEMO2 , Code: 3CI-RD-CS48MR-SMSC-4MOA-G-EDEMO-WP-F
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Last updated 2026-07-02 UTC.