Best Red Dots for the Glock 43X MOS
The Glock 43X MOS is a slim single-stack carry 9mm, so it wants a small, low-profile micro red dot on the compact RMSc-class footprint. These are the dots that fit and the cut or plate each one uses.
Updated
22 Red Dots that fit the Glock 43X
Compare all 22 Red Dots in a table
| Optic | Type | Spec | Fit | MSRP |
|---|---|---|---|---|
| Athlon Midas EDC Pistol | Red dot | 3 MOA dot | Direct fit | $200 |
| Burris FastFire C | Red dot | 6 MOA dot | Direct fit | $259 |
| C&H Precision EDC | Red dot | 3 MOA dot | Direct fit | $220 |
| C&H Precision EDC Enclosed | Red dot | 2.5 MOA dot | Direct fit | $250 |
| Crimson Trace CT RAD Micro | Red dot | 3 MOA dot | Direct fit | $220 |
| Crimson Trace CT RAD Micro Pro | Red dot | 3 MOA dot | Direct fit | $275 |
| Crimson Trace CTS-1550 | Red dot | 3 MOA dot | Direct fit | $180 |
| Gideon Optics Judge | Red dot | 3 MOA dot | Direct fit | $180 |
| Gideon Optics Judge II Micro | Red dot | 3 MOA dot | Direct fit | $210 |
| Holosun 407K X2 | Red dot | 6 MOA dot | RMSc and Holosun K share identical mounting holes (cross-compatible) | $306 |
| Holosun 507K X2 | Red dot | 2 MOA dot | RMSc and Holosun K share identical mounting holes (cross-compatible) | $340 |
| Holosun EPS Carry | Red dot | 2 MOA dot | RMSc and Holosun K share identical mounting holes (cross-compatible) | $389 |
| Meprolight MPO PRO-S | Red dot | 3 MOA dot | Direct fit | $400 |
| Meprolight MPO-S | Red dot | 3 MOA dot | Direct fit | $320 |
| Riton 3 Tactix MPRD | Red dot | 3 MOA dot | Direct fit | $350 |
| Shield Sights RMSc | Red dot | 4 MOA dot | Direct fit | $400 |
| SIG Romeo Zero | Red dot | 3 MOA dot | Direct fit | $200 |
| SIG Sauer Romeo-X Compact | Red dot | 2 MOA dot | Direct fit | $430 |
| SIG Sauer Romeo-X Enclosed Compact | Red dot | 3 MOA dot | Direct fit | $600 |
| SIG Sauer RomeoZero Elite | Red dot | 2 MOA dot | Direct fit | $230 |
| Swampfox Sentinel II | Red dot | 3 MOA dot | Direct fit | $250 |
| Vortex Defender-CCW | Red dot | 6 MOA dot | Direct fit | $250 |
22 of 22 optics
Red dots & reflex sights (22)
1x, no magnification — fast target acquisition up close.
- Athlon Midas EDC PistolDirect Fit
3 MOA dot · Open · 50k-hr battery · 0.65 oz
Where to buy≈ $200 MSRP - Burris FastFire CDirect Fit
6 MOA dot · Open · 25k-hr battery · 0.44 oz
Where to buy≈ $259 MSRP - C&H Precision EDCDirect Fit
3 MOA dot · Open
Where to buy≈ $220 MSRP - C&H Precision EDC EnclosedDirect Fit
2.5 MOA dot · Enclosed
Where to buy≈ $250 MSRP - Crimson Trace CT RAD MicroDirect Fit
3 MOA dot · Open · 20k-hr battery · 1 oz
Where to buy≈ $220 MSRP - Crimson Trace CT RAD Micro ProDirect Fit
3 MOA dot · Open · 20k-hr battery · 1 oz
Where to buy≈ $275 MSRP - Crimson Trace CTS-1550Direct Fit
3 MOA dot · Open · 20k-hr battery · 0.6 oz
Where to buy≈ $180 MSRP - Gideon Optics JudgeDirect Fit
3 MOA dot · Open
Where to buy≈ $180 MSRP - Gideon Optics Judge II MicroDirect Fit
3 MOA dot · Enclosed
Where to buy≈ $210 MSRP - Meprolight MPO PRO-SDirect Fit
3 MOA dot · Enclosed · 20k-hr battery · 1.4 oz
Where to buy≈ $400 MSRP - Meprolight MPO-SDirect Fit
3 MOA dot · Open · 20k-hr battery · 0.8 oz
Where to buy≈ $320 MSRP - Riton 3 Tactix MPRDDirect Fit
3 MOA dot · Open · 50k-hr battery · 0.6 oz
Where to buy≈ $350 MSRP - Shield Sights RMScDirect Fit
4 MOA dot · Open · 20k-hr battery · 0.6 oz
Where to buy≈ $400 MSRP - SIG Romeo ZeroDirect Fit
3 MOA dot · Open · 20k-hr battery · 0.4 oz
Where to buy≈ $200 MSRP - SIG Sauer Romeo-X CompactDirect Fit
2 MOA dot · Open · 20k-hr battery · 1 oz
Where to buy≈ $430 MSRP - SIG Sauer Romeo-X Enclosed CompactDirect Fit
3 MOA dot · Enclosed · 20k-hr battery · 1.4 oz
Where to buy≈ $600 MSRP - SIG Sauer RomeoZero EliteDirect Fit
2 MOA dot · Open · 20k-hr battery · 0.5 oz
Where to buy≈ $230 MSRP - Swampfox Sentinel IIDirect Fit
3 MOA dot · Open · 50k-hr battery · 1 oz
Where to buy≈ $250 MSRP - Vortex Defender-CCWDirect Fit
6 MOA dot · Open · 10k-hr battery · 0.95 oz
Where to buy≈ $250 MSRP - Holosun 407K X2Needs Mount
6 MOA dot · Open · 50k-hr battery · 1 oz
Requires: RMSc and Holosun K share identical mounting holes (cross-compatible)
Where to buy≈ $306 MSRP - Holosun 507K X2Needs Mount
2 MOA dot · Open · 50k-hr battery · 1 oz
Requires: RMSc and Holosun K share identical mounting holes (cross-compatible)
Where to buy≈ $340 MSRP - Holosun EPS CarryNeeds Mount
2 MOA dot · Enclosed · 50k-hr battery · 1.2 oz
Requires: RMSc and Holosun K share identical mounting holes (cross-compatible)
Where to buy≈ $389 MSRP
Want a different optic type? See every optic that fits the Glock 43X.
Fit is research-verified; suitability is general guidance based on the platform's typical effective range — not a hard rule.
Common questions
- Which Red Dots are best for the Glock 43X?
- All Red Dots listed below are verified to fit the Glock 43X. The best one depends on how you'll use it — we flag which ones suit the gun's typical effective range, and you can compare dot size or magnification, durability, and price to choose. There's no single winner for everyone.
- How many Red Dots fit the Glock 43X?
- 22 Red Dots in our catalog are confirmed to fit the Glock 43X, each shown with the exact plate or mount it needs.
- Do these Red Dots mount directly, or need a separate mount on the Glock 43X?
- It varies by model — each one shows whether it mounts directly to the Glock 43X's rail or cut, or needs a specific plate or mount. Fitment is verified per optic, not assumed.