Best Red Dots for the Ruger AR-556
The Ruger AR-556 is the value-leading flat-top 5.56 AR; its Picatinny rail mounts any red dot directly. These are the compatible micro and full-size dots, ranked for a do-everything carbine.
Updated
107 Red Dots that fit the Ruger AR-556
Compare all 107 Red Dots in a table
| Optic | Type | Spec | Fit | MSRP |
|---|---|---|---|---|
| Aimpoint ACRO C-2 | Red dot | 3.5 MOA dot | red-dot riser/mount (Picatinny → Aimpoint ACRO footprint) | $599 |
| Aimpoint ACRO P-2 | Red dot | 3.5 MOA dot | red-dot riser/mount (Picatinny → Aimpoint ACRO footprint) | $599 |
| Aimpoint CompM5 | Red dot | 2 MOA dot | Direct fit | $1,009 |
| Aimpoint CompM5s | Red dot | 2 MOA dot | Direct fit | $1,226 |
| Aimpoint Duty RDS | Red dot | 2 MOA dot | Direct fit | $499 |
| Aimpoint Micro H-2 | Red dot | 2 MOA dot | Direct fit | $754 |
| Aimpoint Micro T-2 | Red dot | 2 MOA dot | Direct fit | $875 |
| Aimpoint PRO | Red dot | 2 MOA dot | Direct fit | $530 |
| Athlon Midas Burst Pistol | Red dot | 3 MOA dot | red-dot riser/mount (Picatinny → Leupold DeltaPoint Pro footprint) | $230 |
| Athlon Midas EDC Pistol | Red dot | 3 MOA dot | red-dot riser/mount (Picatinny → Shield RMSc footprint) | $200 |
| Athlon Midas Flash Pistol | Red dot | 3 MOA dot | red-dot riser/mount (Picatinny → Trijicon RMR footprint) | $250 |
| Burris FastFire 3 | Red dot | 8 MOA dot | Docter/Venom Picatinny riser mount | $299 |
| Burris FastFire 4 | Red dot | 3 MOA dot | Docter/Venom Picatinny riser mount | $419 |
| Burris FastFire C | Red dot | 6 MOA dot | red-dot riser/mount (Picatinny → Shield RMSc footprint) | $259 |
| Burris RT-1 | Red dot | 2 MOA dot | Direct fit | $299 |
| Bushnell AR Optics TRS-26 | Red dot | 3 MOA dot | Direct fit | $150 |
| Bushnell RXM-300 | Red dot | 4 MOA dot | red-dot riser/mount (Picatinny → Trijicon RMR footprint) | $200 |
| Bushnell RXS-100 | Red dot | 4 MOA dot | red-dot riser/mount (Picatinny → Leupold DeltaPoint Pro footprint) | $150 |
| Bushnell RXS-250 | Red dot | 4 MOA dot | red-dot riser/mount (Picatinny → Leupold DeltaPoint Pro footprint) | $200 |
| Bushnell Trophy TRS-25 | Red dot | 3 MOA dot | Direct fit | $100 |
| C&H Precision COMP | Red dot | 3 MOA dot | red-dot riser/mount (Picatinny → Trijicon RMR footprint) | $300 |
| C&H Precision EDC | Red dot | 3 MOA dot | red-dot riser/mount (Picatinny → Shield RMSc footprint) | $220 |
| C&H Precision EDC Enclosed | Red dot | 2.5 MOA dot | red-dot riser/mount (Picatinny → Shield RMSc footprint) | $250 |
| C&H Precision EDC-XL | Red dot | 3 MOA dot | red-dot riser/mount (Picatinny → Trijicon RMR footprint) | $250 |
| Crimson Trace CT RAD | Red dot | 3 MOA dot | Docter/Venom Picatinny riser mount | $242 |
| Crimson Trace CT RAD Max Pro | Red dot | 3 MOA dot | Direct fit | $380 |
| Crimson Trace CT RAD Micro | Red dot | 3 MOA dot | red-dot riser/mount (Picatinny → Shield RMSc footprint) | $220 |
| Crimson Trace CT RAD Micro Pro | Red dot | 3 MOA dot | red-dot riser/mount (Picatinny → Shield RMSc footprint) | $275 |
| Crimson Trace CT RAD Pro | Red dot | 3 MOA dot | Docter/Venom Picatinny riser mount | $297 |
| Crimson Trace CTS-1250 | Red dot | 3.25 MOA dot | Docter/Venom Picatinny riser mount | $260 |
| Crimson Trace CTS-1550 | Red dot | 3 MOA dot | red-dot riser/mount (Picatinny → Shield RMSc footprint) | $180 |
| Crimson Trace CTS-25 | Red dot | 4 MOA dot | Direct fit | $90 |
| EOTech 512 | Red dot | 1 MOA dot | Direct fit | $559 |
| EOTech 518.2 | Red dot | 1 MOA dot | Direct fit | $609 |
| EOTech 558 | Red dot | 1 MOA dot | Direct fit | $679 |
| EOTech EFLX Mini | Red dot | 6 MOA dot | red-dot riser/mount (Picatinny → Leupold DeltaPoint Pro footprint) | $389 |
| EOTech EXPS2-0 | Red dot | 1 MOA dot | Direct fit | $689 |
| EOTech EXPS3-0 | Red dot | 1 MOA dot | Direct fit | $769 |
| EOTech XPS2-0 | Red dot | 1 MOA dot | Direct fit | $599 |
| Gideon Optics Alpha | Red dot | 3 MOA dot | red-dot riser/mount (Picatinny → Trijicon RMR footprint) | $190 |
| Gideon Optics Judge | Red dot | 3 MOA dot | red-dot riser/mount (Picatinny → Shield RMSc footprint) | $180 |
| Gideon Optics Judge II Micro | Red dot | 3 MOA dot | red-dot riser/mount (Picatinny → Shield RMSc footprint) | $210 |
| Gideon Optics Omega | Red dot | 3 MOA dot | red-dot riser/mount (Picatinny → Trijicon RMR footprint) | $150 |
| Gideon Optics Storm | Red dot | 6 MOA dot | red-dot riser/mount (Picatinny → Leupold DeltaPoint Pro footprint) | $230 |
| Holosun 407C X2 | Red dot | 2 MOA dot | red-dot riser/mount (Picatinny → Trijicon RMR footprint) | $294 |
| Holosun 407K X2 | Red dot | 6 MOA dot | red-dot riser/mount (Picatinny → Holosun K footprint) | $306 |
| Holosun 507C X2 | Red dot | 2 MOA dot | red-dot riser/mount (Picatinny → Trijicon RMR footprint) | $350 |
| Holosun 507COMP | Red dot | 2 MOA dot | red-dot riser/mount (Picatinny → Trijicon RMR footprint) | $511 |
| Holosun 507K X2 | Red dot | 2 MOA dot | red-dot riser/mount (Picatinny → Holosun K footprint) | $340 |
| Holosun 508T X2 | Red dot | 2 MOA dot | red-dot riser/mount (Picatinny → Trijicon RMR footprint) | $470 |
| Holosun AEMS | Red dot | 2 MOA dot | Direct fit | $480 |
| Holosun EPS Carry | Red dot | 2 MOA dot | red-dot riser/mount (Picatinny → Holosun K footprint) | $389 |
| Holosun HE509T-RD X2 | Red dot | 2 MOA dot | red-dot riser/mount (Picatinny → Trijicon RMR footprint) | $530 |
| Holosun HS403B / HS403C | Red dot | 2 MOA dot | Direct fit | $150 |
| Holosun HS503CU / HE503CU | Red dot | 2 MOA dot | Direct fit | $235 |
| Holosun HS510C | Red dot | 2 MOA dot | Direct fit | $318 |
| Leupold DeltaPoint Pro | Red dot | 2.5 MOA dot | red-dot riser/mount (Picatinny → Leupold DeltaPoint Pro footprint) | $520 |
| Leupold Freedom RDS 1x34 | Red dot | 1 MOA dot | Direct fit | $350 |
| Leupold LCO | Red dot | 1 MOA dot | Direct fit | $700 |
| Meprolight M5 | Red dot | 2 MOA dot | Direct fit | $480 |
| Meprolight MicroRDS | Red dot | 3 MOA dot | Docter/Venom Picatinny riser mount | $350 |
| Meprolight MPO PRO-F | Red dot | 3 MOA dot | red-dot riser/mount (Picatinny → Trijicon RMR footprint) | $400 |
| Meprolight MPO PRO-S | Red dot | 3 MOA dot | red-dot riser/mount (Picatinny → Shield RMSc footprint) | $400 |
| Meprolight MPO-F | Red dot | 3 MOA dot | red-dot riser/mount (Picatinny → Trijicon RMR footprint) | $320 |
| Meprolight MPO-S | Red dot | 3 MOA dot | red-dot riser/mount (Picatinny → Shield RMSc footprint) | $320 |
| Meprolight RDS Pro V2 | Red dot | 1.8 MOA dot | Direct fit | $450 |
| Meprolight Tru-Vision | Red dot | 2 MOA dot | Direct fit | $300 |
| Primary Arms SLx MD-25 Gen II | Red dot | 2 MOA dot | Direct fit | $160 |
| Riton 1 Tactix ARD | Red dot | 2 MOA dot | Direct fit | $230 |
| Riton 1 Tactix EED | Red dot | 2 MOA dot | red-dot riser/mount (Picatinny → Aimpoint ACRO footprint) | $280 |
| Riton 3 Tactix EED | Red dot | 3 MOA dot | red-dot riser/mount (Picatinny → Aimpoint ACRO footprint) | $350 |
| Riton 3 Tactix MPRD | Red dot | 3 MOA dot | red-dot riser/mount (Picatinny → Shield RMSc footprint) | $350 |
| Riton 3 Tactix PRD | Red dot | 2 MOA dot | red-dot riser/mount (Picatinny → Trijicon RMR footprint) | $350 |
| Shield Sights RMSc | Red dot | 4 MOA dot | red-dot riser/mount (Picatinny → Shield RMSc footprint) | $400 |
| SIG Romeo Zero | Red dot | 3 MOA dot | red-dot riser/mount (Picatinny → Shield RMSc footprint) | $200 |
| SIG Romeo1Pro | Red dot | 3 MOA dot | red-dot riser/mount (Picatinny → Leupold DeltaPoint Pro footprint) | $480 |
| SIG Sauer Romeo-MSR | Red dot | 2 MOA dot | Direct fit | $120 |
| SIG Sauer Romeo-X Compact | Red dot | 2 MOA dot | red-dot riser/mount (Picatinny → Shield RMSc footprint) | $430 |
| SIG Sauer Romeo-X Enclosed Compact | Red dot | 3 MOA dot | red-dot riser/mount (Picatinny → Shield RMSc footprint) | $600 |
| SIG Sauer Romeo-X Pro | Red dot | 2 MOA dot | red-dot riser/mount (Picatinny → Leupold DeltaPoint Pro footprint) | $480 |
| SIG Sauer Romeo2 | Red dot | 2 MOA dot | red-dot riser/mount (Picatinny → Leupold DeltaPoint Pro footprint) | $800 |
| SIG Sauer Romeo5 | Red dot | 2 MOA dot | Direct fit | $160 |
| SIG Sauer RomeoZero Elite | Red dot | 2 MOA dot | red-dot riser/mount (Picatinny → Shield RMSc footprint) | $230 |
| Steiner MPS | Red dot | 3.3 MOA dot | red-dot riser/mount (Picatinny → Aimpoint ACRO footprint) | $500 |
| Steiner MRS | Red dot | 3 MOA dot | Direct fit | $350 |
| Steiner R1X | Red dot | 2 MOA dot | Direct fit | $530 |
| Swampfox Justice II | Red dot | 6 MOA dot | red-dot riser/mount (Picatinny → Trijicon RMR footprint) | $300 |
| Swampfox Kingslayer | Red dot | 3 MOA dot | red-dot riser/mount (Picatinny → Trijicon RMR footprint) | $230 |
| Swampfox Kraken | Red dot | 3 MOA dot | red-dot riser/mount (Picatinny → Trijicon RMR footprint) | $350 |
| Swampfox Liberator | Red dot | 3 MOA dot | red-dot riser/mount (Picatinny → Trijicon RMR footprint) | $200 |
| Swampfox Liberty II | Red dot | 3 MOA dot | red-dot riser/mount (Picatinny → Trijicon RMR footprint) | $280 |
| Swampfox Sentinel II | Red dot | 3 MOA dot | red-dot riser/mount (Picatinny → Shield RMSc footprint) | $250 |
| Trijicon MRO | Red dot | 2 MOA dot | Direct fit | $579 |
| Trijicon MRO HD | Red dot | 2 MOA dot | Direct fit | $829 |
| Trijicon RCR | Red dot | 3.25 MOA dot | red-dot riser/mount (Picatinny → Trijicon RMR footprint) | $699 |
| Trijicon RMR HD | Red dot | 3.25 MOA dot | red-dot riser/mount (Picatinny → Trijicon RMR footprint) | $1,019 |
| Trijicon RMR Type 2 | Red dot | 3.25 MOA dot | red-dot riser/mount (Picatinny → Trijicon RMR footprint) | $699 |
| Trijicon SRO | Red dot | 2.5 MOA dot | red-dot riser/mount (Picatinny → Trijicon RMR footprint) | $749 |
| Vortex AMG UH-1 Gen II | Red dot | 1 MOA dot | Direct fit | $700 |
| Vortex Crossfire Gen II | Red dot | 2 MOA dot | Direct fit | $200 |
| Vortex Defender-CCW | Red dot | 6 MOA dot | red-dot riser/mount (Picatinny → Shield RMSc footprint) | $250 |
| Vortex Defender-ST | Red dot | 3 MOA dot | red-dot riser/mount (Picatinny → Leupold DeltaPoint Pro footprint) | $399 |
| Vortex SPARC AR Gen II | Red dot | 2 MOA dot | Direct fit | $200 |
| Vortex SPARC Solar | Red dot | 2 MOA dot | Direct fit | $230 |
| Vortex Venom | Red dot | 6 MOA dot | Docter/Venom Picatinny riser mount | $280 |
| Vortex Venom Enclosed | Red dot | 6 MOA dot | red-dot riser/mount (Picatinny → Leupold DeltaPoint Pro footprint) | $350 |
| Vortex Viper | Red dot | 6 MOA dot | Docter/Venom Picatinny riser mount | $250 |
107 of 107 optics
None are an ideal magnification match for this range — showing all compatible optics.
Red dots & reflex sights (107)
1x, no magnification — fast target acquisition up close.
- Aimpoint CompM5Direct FitClose Range
2 MOA dot · Open · 50k-hr battery · 5.2 oz
Where to buy≈ $1,009 MSRP - Aimpoint CompM5sDirect FitClose Range
2 MOA dot · Open · 50k-hr battery · 5.8 oz
Where to buy≈ $1,226 MSRP - Aimpoint Duty RDSDirect FitClose Range
2 MOA dot · Open · 30k-hr battery · 3.8 oz
Where to buy≈ $499 MSRP - Aimpoint Micro H-2Direct FitClose Range
2 MOA dot · Open · 50k-hr battery · 3.3 oz
Where to buy≈ $754 MSRP - Aimpoint Micro T-2Direct FitClose Range
2 MOA dot · Open · 50k-hr battery · 3 oz
Where to buy≈ $875 MSRP - Aimpoint PRODirect FitClose Range
2 MOA dot · Enclosed · 30k-hr battery · 6.8 oz
Where to buy≈ $530 MSRP - Burris RT-1Direct FitClose Range
2 MOA dot · Open · 4.8 oz
Where to buy≈ $299 MSRP - Bushnell AR Optics TRS-26Direct FitClose Range
3 MOA dot · Open · 50k-hr battery · 6 oz
Where to buy≈ $150 MSRP - Bushnell Trophy TRS-25Direct FitClose Range
3 MOA dot · Open · 5k-hr battery · 3.7 oz
Where to buy≈ $100 MSRP - Crimson Trace CT RAD Max ProDirect FitClose Range
3 MOA dot · Open · 50k-hr battery · 0.7 oz
Where to buy≈ $380 MSRP - Crimson Trace CTS-25Direct FitClose Range
4 MOA dot · Open · 50-hr battery · 4.8 oz
Where to buy≈ $90 MSRP - EOTech 512Direct FitClose Range
1 MOA dot · Holographic · 3k-hr battery · 11.1 oz
Where to buy≈ $559 MSRP - EOTech 518.2Direct FitClose Range
1 MOA dot · Holographic · 3k-hr battery · 13.8 oz
Where to buy≈ $609 MSRP - EOTech 558Direct FitClose Range
1 MOA dot · Holographic · 3k-hr battery · 13.8 oz
Where to buy≈ $679 MSRP - EOTech EXPS2-0Direct FitClose Range
1 MOA dot · Holographic · 1k-hr battery · 11.2 oz
Where to buy≈ $689 MSRP - EOTech EXPS3-0Direct FitClose Range
1 MOA dot · Holographic · 1k-hr battery · 11.2 oz
Where to buy≈ $769 MSRP - EOTech XPS2-0Direct FitClose Range
1 MOA dot · Holographic · 1k-hr battery · 9 oz
Where to buy≈ $599 MSRP - Holosun AEMSDirect FitClose Range
2 MOA dot · Enclosed · 50k-hr battery + solar · 3.9 oz
Where to buy≈ $480 MSRP - Holosun HS403B / HS403CDirect FitClose Range
2 MOA dot · Open · 50k-hr battery · 2.8 oz
Where to buy≈ $150 MSRP - Holosun HS503CU / HE503CUDirect FitClose Range
2 MOA dot · Open · 50k-hr battery + solar · 3 oz
Where to buy≈ $235 MSRP - Holosun HS510CDirect FitClose Range
2 MOA dot · Open · 50k-hr battery + solar · 4.9 oz
Where to buy≈ $318 MSRP - Leupold Freedom RDS 1x34Direct FitClose Range
1 MOA dot · Open · 1k-hr battery · 6.9 oz
Where to buy≈ $350 MSRP - Leupold LCODirect FitClose Range
1 MOA dot · Enclosed · 9.5 oz
Where to buy≈ $700 MSRP - Meprolight M5Direct FitClose Range
2 MOA dot · Enclosed
Where to buy≈ $480 MSRP - Meprolight RDS Pro V2Direct FitClose Range
1.8 MOA dot · Enclosed · 3k-hr battery · 9.9 oz
Where to buy≈ $450 MSRP - Meprolight Tru-VisionDirect FitClose Range
2 MOA dot · Open · 10k-hr battery
Where to buy≈ $300 MSRP - Primary Arms SLx MD-25 Gen IIDirect FitClose Range
2 MOA dot · Open · 50k-hr battery · 6.5 oz
Where to buy≈ $160 MSRP - Riton 1 Tactix ARDDirect FitClose Range
2 MOA dot · Open · 40k-hr battery · 3.5 oz
Where to buy≈ $230 MSRP - SIG Sauer Romeo-MSRDirect FitClose Range
2 MOA dot · Open · 20k-hr battery · 4.9 oz
Where to buy≈ $120 MSRP - SIG Sauer Romeo5Direct FitClose Range
2 MOA dot · Open · 40k-hr battery · 5.1 oz
Where to buy≈ $160 MSRP - Steiner MRSDirect FitClose Range
3 MOA dot · Open · 550-hr battery · 2.5 oz
Where to buy≈ $350 MSRP - Steiner R1XDirect FitClose Range
2 MOA dot · Open · 9.6 oz
Where to buy≈ $530 MSRP - Trijicon MRODirect FitClose Range
2 MOA dot · Enclosed · 44k-hr battery · 4.1 oz
Where to buy≈ $579 MSRP - Trijicon MRO HDDirect FitClose Range
2 MOA dot · Enclosed · 22k-hr battery · 4.6 oz
Where to buy≈ $829 MSRP - Vortex AMG UH-1 Gen IIDirect FitClose Range
1 MOA dot · Holographic · 2k-hr battery · 11.6 oz
Where to buy≈ $700 MSRP - Vortex Crossfire Gen IIDirect FitClose Range
2 MOA dot · Open · 50k-hr battery
Where to buy≈ $200 MSRP - Vortex SPARC AR Gen IIDirect FitClose Range
2 MOA dot · Open · 50k-hr battery
Where to buy≈ $200 MSRP - Vortex SPARC SolarDirect FitClose Range
2 MOA dot · Open · 150k-hr battery + solar
Where to buy≈ $230 MSRP - Aimpoint ACRO C-2Needs MountClose Range
3.5 MOA dot · Enclosed · 50k-hr battery · 2.1 oz
Requires: red-dot riser/mount (Picatinny → Aimpoint ACRO footprint)
Where to buy≈ $599 MSRP - Aimpoint ACRO P-2Needs MountClose Range
3.5 MOA dot · Enclosed · 50k-hr battery · 2.1 oz
Requires: red-dot riser/mount (Picatinny → Aimpoint ACRO footprint)
Where to buy≈ $599 MSRP - Athlon Midas Burst PistolNeeds MountClose Range
3 MOA dot · Enclosed · 50k-hr battery · 1.27 oz
Requires: red-dot riser/mount (Picatinny → Leupold DeltaPoint Pro footprint)
Where to buy≈ $230 MSRP - Athlon Midas EDC PistolNeeds MountClose Range
3 MOA dot · Open · 50k-hr battery · 0.65 oz
Requires: red-dot riser/mount (Picatinny → Shield RMSc footprint)
Where to buy≈ $200 MSRP - Athlon Midas Flash PistolNeeds MountClose Range
3 MOA dot · Open · 50k-hr battery · 1.16 oz
Requires: red-dot riser/mount (Picatinny → Trijicon RMR footprint)
Where to buy≈ $250 MSRP - Burris FastFire 3Needs MountClose Range
8 MOA dot · Open · 1.5 oz
Requires: Docter/Venom Picatinny riser mount
Where to buy≈ $299 MSRP - Burris FastFire 4Needs MountClose Range
3 MOA dot · Open · 26k-hr battery · 1.6 oz
Requires: Docter/Venom Picatinny riser mount
Where to buy≈ $419 MSRP - Burris FastFire CNeeds MountClose Range
6 MOA dot · Open · 25k-hr battery · 0.44 oz
Requires: red-dot riser/mount (Picatinny → Shield RMSc footprint)
Where to buy≈ $259 MSRP - Bushnell RXM-300Needs MountClose Range
4 MOA dot · Open · 35k-hr battery · 1.95 oz
Requires: red-dot riser/mount (Picatinny → Trijicon RMR footprint)
Where to buy≈ $200 MSRP - Bushnell RXS-100Needs MountClose Range
4 MOA dot · Open · 5k-hr battery · 1.3 oz
Requires: red-dot riser/mount (Picatinny → Leupold DeltaPoint Pro footprint)
Where to buy≈ $150 MSRP - Bushnell RXS-250Needs MountClose Range
4 MOA dot · Open · 50k-hr battery · 1.4 oz
Requires: red-dot riser/mount (Picatinny → Leupold DeltaPoint Pro footprint)
Where to buy≈ $200 MSRP - C&H Precision COMPNeeds MountClose Range
3 MOA dot · Open
Requires: red-dot riser/mount (Picatinny → Trijicon RMR footprint)
Where to buy≈ $300 MSRP - C&H Precision EDCNeeds MountClose Range
3 MOA dot · Open
Requires: red-dot riser/mount (Picatinny → Shield RMSc footprint)
Where to buy≈ $220 MSRP - C&H Precision EDC EnclosedNeeds MountClose Range
2.5 MOA dot · Enclosed
Requires: red-dot riser/mount (Picatinny → Shield RMSc footprint)
Where to buy≈ $250 MSRP - C&H Precision EDC-XLNeeds MountClose Range
3 MOA dot · Enclosed
Requires: red-dot riser/mount (Picatinny → Trijicon RMR footprint)
Where to buy≈ $250 MSRP - Crimson Trace CT RADNeeds MountClose Range
3 MOA dot · Open · 20k-hr battery · 1 oz
Requires: Docter/Venom Picatinny riser mount
Where to buy≈ $242 MSRP - Crimson Trace CT RAD MicroNeeds MountClose Range
3 MOA dot · Open · 20k-hr battery · 1 oz
Requires: red-dot riser/mount (Picatinny → Shield RMSc footprint)
Where to buy≈ $220 MSRP - Crimson Trace CT RAD Micro ProNeeds MountClose Range
3 MOA dot · Open · 20k-hr battery · 1 oz
Requires: red-dot riser/mount (Picatinny → Shield RMSc footprint)
Where to buy≈ $275 MSRP - Crimson Trace CT RAD ProNeeds MountClose Range
3 MOA dot · Open · 20k-hr battery · 1.6 oz
Requires: Docter/Venom Picatinny riser mount
Where to buy≈ $297 MSRP - Crimson Trace CTS-1250Needs MountClose Range
3.25 MOA dot · Open · 20k-hr battery · 1.6 oz
Requires: Docter/Venom Picatinny riser mount
Where to buy≈ $260 MSRP - Crimson Trace CTS-1550Needs MountClose Range
3 MOA dot · Open · 20k-hr battery · 0.6 oz
Requires: red-dot riser/mount (Picatinny → Shield RMSc footprint)
Where to buy≈ $180 MSRP - EOTech EFLX MiniNeeds MountClose Range
6 MOA dot · Open · 25k-hr battery · 1.4 oz
Requires: red-dot riser/mount (Picatinny → Leupold DeltaPoint Pro footprint)
Where to buy≈ $389 MSRP - Gideon Optics AlphaNeeds MountClose Range
3 MOA dot · Open
Requires: red-dot riser/mount (Picatinny → Trijicon RMR footprint)
Where to buy≈ $190 MSRP - Gideon Optics JudgeNeeds MountClose Range
3 MOA dot · Open
Requires: red-dot riser/mount (Picatinny → Shield RMSc footprint)
Where to buy≈ $180 MSRP - Gideon Optics Judge II MicroNeeds MountClose Range
3 MOA dot · Enclosed
Requires: red-dot riser/mount (Picatinny → Shield RMSc footprint)
Where to buy≈ $210 MSRP - Gideon Optics OmegaNeeds MountClose Range
3 MOA dot · Open
Requires: red-dot riser/mount (Picatinny → Trijicon RMR footprint)
Where to buy≈ $150 MSRP - Gideon Optics StormNeeds MountClose Range
6 MOA dot · Open
Requires: red-dot riser/mount (Picatinny → Leupold DeltaPoint Pro footprint)
Where to buy≈ $230 MSRP - Holosun 407C X2Needs MountClose Range
2 MOA dot · Open · 50k-hr battery + solar · 1.5 oz
Requires: red-dot riser/mount (Picatinny → Trijicon RMR footprint)
Where to buy≈ $294 MSRP - Holosun 407K X2Needs MountClose Range
6 MOA dot · Open · 50k-hr battery · 1 oz
Requires: red-dot riser/mount (Picatinny → Holosun K footprint)
Where to buy≈ $306 MSRP - Holosun 507C X2Needs MountClose Range
2 MOA dot · Open · 50k-hr battery + solar · 1.5 oz
Requires: red-dot riser/mount (Picatinny → Trijicon RMR footprint)
Where to buy≈ $350 MSRP - Holosun 507COMPNeeds MountClose Range
2 MOA dot · Open · 50k-hr battery · 1.7 oz
Requires: red-dot riser/mount (Picatinny → Trijicon RMR footprint)
Where to buy≈ $511 MSRP - Holosun 507K X2Needs MountClose Range
2 MOA dot · Open · 50k-hr battery · 1 oz
Requires: red-dot riser/mount (Picatinny → Holosun K footprint)
Where to buy≈ $340 MSRP - Holosun 508T X2Needs MountClose Range
2 MOA dot · Open · 50k-hr battery + solar · 1.8 oz
Requires: red-dot riser/mount (Picatinny → Trijicon RMR footprint)
Where to buy≈ $470 MSRP - Holosun EPS CarryNeeds MountClose Range
2 MOA dot · Enclosed · 50k-hr battery · 1.2 oz
Requires: red-dot riser/mount (Picatinny → Holosun K footprint)
Where to buy≈ $389 MSRP - Holosun HE509T-RD X2Needs MountClose Range
2 MOA dot · Enclosed · 50k-hr battery + solar · 1.3 oz
Requires: red-dot riser/mount (Picatinny → Trijicon RMR footprint)
Where to buy≈ $530 MSRP - Leupold DeltaPoint ProNeeds MountClose Range
2.5 MOA dot · Open · 1k-hr battery · 2 oz
Requires: red-dot riser/mount (Picatinny → Leupold DeltaPoint Pro footprint)
Where to buy≈ $520 MSRP - Meprolight MicroRDSNeeds MountClose Range
3 MOA dot · Open · 1.3 oz
Requires: Docter/Venom Picatinny riser mount
Where to buy≈ $350 MSRP - Meprolight MPO PRO-FNeeds MountClose Range
3 MOA dot · Enclosed · 20k-hr battery · 1.8 oz
Requires: red-dot riser/mount (Picatinny → Trijicon RMR footprint)
Where to buy≈ $400 MSRP - Meprolight MPO PRO-SNeeds MountClose Range
3 MOA dot · Enclosed · 20k-hr battery · 1.4 oz
Requires: red-dot riser/mount (Picatinny → Shield RMSc footprint)
Where to buy≈ $400 MSRP - Meprolight MPO-FNeeds MountClose Range
3 MOA dot · Open · 20k-hr battery · 1.4 oz
Requires: red-dot riser/mount (Picatinny → Trijicon RMR footprint)
Where to buy≈ $320 MSRP - Meprolight MPO-SNeeds MountClose Range
3 MOA dot · Open · 20k-hr battery · 0.8 oz
Requires: red-dot riser/mount (Picatinny → Shield RMSc footprint)
Where to buy≈ $320 MSRP - Riton 1 Tactix EEDNeeds MountClose Range
2 MOA dot · Enclosed · 30k-hr battery · 1.3 oz
Requires: red-dot riser/mount (Picatinny → Aimpoint ACRO footprint)
Where to buy≈ $280 MSRP - Riton 3 Tactix EEDNeeds MountClose Range
3 MOA dot · Enclosed · 50k-hr battery · 2.1 oz
Requires: red-dot riser/mount (Picatinny → Aimpoint ACRO footprint)
Where to buy≈ $350 MSRP - Riton 3 Tactix MPRDNeeds MountClose Range
3 MOA dot · Open · 50k-hr battery · 0.6 oz
Requires: red-dot riser/mount (Picatinny → Shield RMSc footprint)
Where to buy≈ $350 MSRP - Riton 3 Tactix PRDNeeds MountClose Range
2 MOA dot · Open · 40k-hr battery · 1.3 oz
Requires: red-dot riser/mount (Picatinny → Trijicon RMR footprint)
Where to buy≈ $350 MSRP - Shield Sights RMScNeeds MountClose Range
4 MOA dot · Open · 20k-hr battery · 0.6 oz
Requires: red-dot riser/mount (Picatinny → Shield RMSc footprint)
Where to buy≈ $400 MSRP - SIG Romeo ZeroNeeds MountClose Range
3 MOA dot · Open · 20k-hr battery · 0.4 oz
Requires: red-dot riser/mount (Picatinny → Shield RMSc footprint)
Where to buy≈ $200 MSRP - SIG Romeo1ProNeeds MountClose Range
3 MOA dot · Open · 20k-hr battery · 1 oz
Requires: red-dot riser/mount (Picatinny → Leupold DeltaPoint Pro footprint)
Where to buy≈ $480 MSRP - SIG Sauer Romeo-X CompactNeeds MountClose Range
2 MOA dot · Open · 20k-hr battery · 1 oz
Requires: red-dot riser/mount (Picatinny → Shield RMSc footprint)
Where to buy≈ $430 MSRP - SIG Sauer Romeo-X Enclosed CompactNeeds MountClose Range
3 MOA dot · Enclosed · 20k-hr battery · 1.4 oz
Requires: red-dot riser/mount (Picatinny → Shield RMSc footprint)
Where to buy≈ $600 MSRP - SIG Sauer Romeo-X ProNeeds MountClose Range
2 MOA dot · Open · 20k-hr battery · 1.15 oz
Requires: red-dot riser/mount (Picatinny → Leupold DeltaPoint Pro footprint)
Where to buy≈ $480 MSRP - SIG Sauer Romeo2Needs MountClose Range
2 MOA dot · Enclosed · 25k-hr battery
Requires: red-dot riser/mount (Picatinny → Leupold DeltaPoint Pro footprint)
Where to buy≈ $800 MSRP - SIG Sauer RomeoZero EliteNeeds MountClose Range
2 MOA dot · Open · 20k-hr battery · 0.5 oz
Requires: red-dot riser/mount (Picatinny → Shield RMSc footprint)
Where to buy≈ $230 MSRP - Steiner MPSNeeds MountClose Range
3.3 MOA dot · Enclosed · 13k-hr battery · 2.05 oz
Requires: red-dot riser/mount (Picatinny → Aimpoint ACRO footprint)
Where to buy≈ $500 MSRP - Swampfox Justice IINeeds MountClose Range
6 MOA dot · Open · 50k-hr battery · 1.8 oz
Requires: red-dot riser/mount (Picatinny → Trijicon RMR footprint)
Where to buy≈ $300 MSRP - Swampfox KingslayerNeeds MountClose Range
3 MOA dot · Open · 2k-hr battery · 1 oz
Requires: red-dot riser/mount (Picatinny → Trijicon RMR footprint)
Where to buy≈ $230 MSRP - Swampfox KrakenNeeds MountClose Range
3 MOA dot · Enclosed · 8k-hr battery · 2.5 oz
Requires: red-dot riser/mount (Picatinny → Trijicon RMR footprint)
Where to buy≈ $350 MSRP - Swampfox LiberatorNeeds MountClose Range
3 MOA dot · Open · 3k-hr battery · 3.5 oz
Requires: red-dot riser/mount (Picatinny → Trijicon RMR footprint)
Where to buy≈ $200 MSRP - Swampfox Liberty IINeeds MountClose Range
3 MOA dot · Open · 50k-hr battery · 1.5 oz
Requires: red-dot riser/mount (Picatinny → Trijicon RMR footprint)
Where to buy≈ $280 MSRP - Swampfox Sentinel IINeeds MountClose Range
3 MOA dot · Open · 50k-hr battery · 1 oz
Requires: red-dot riser/mount (Picatinny → Shield RMSc footprint)
Where to buy≈ $250 MSRP - Trijicon RCRNeeds MountClose Range
3.25 MOA dot · Enclosed · 53k-hr battery · 1.95 oz
Requires: red-dot riser/mount (Picatinny → Trijicon RMR footprint)
Where to buy≈ $699 MSRP - Trijicon RMR HDNeeds MountClose Range
3.25 MOA dot · Open · 30k-hr battery · 1.66 oz
Requires: red-dot riser/mount (Picatinny → Trijicon RMR footprint)
Where to buy≈ $1,019 MSRP - Trijicon RMR Type 2Needs MountClose Range
3.25 MOA dot · Open · 35k-hr battery · 1.2 oz
Requires: red-dot riser/mount (Picatinny → Trijicon RMR footprint)
Where to buy≈ $699 MSRP - Trijicon SRONeeds MountClose Range
2.5 MOA dot · Open · 26k-hr battery · 1.6 oz
Requires: red-dot riser/mount (Picatinny → Trijicon RMR footprint)
Where to buy≈ $749 MSRP - Vortex Defender-CCWNeeds MountClose Range
6 MOA dot · Open · 10k-hr battery · 0.95 oz
Requires: red-dot riser/mount (Picatinny → Shield RMSc footprint)
Where to buy≈ $250 MSRP - Vortex Defender-STNeeds MountClose Range
3 MOA dot · Open · 25k-hr battery · 1.48 oz
Requires: red-dot riser/mount (Picatinny → Leupold DeltaPoint Pro footprint)
Where to buy≈ $399 MSRP - Vortex VenomNeeds MountClose Range
6 MOA dot · Open · 3k-hr battery · 1.1 oz
Requires: Docter/Venom Picatinny riser mount
Where to buy≈ $280 MSRP - Vortex Venom EnclosedNeeds MountClose Range
6 MOA dot · Enclosed · 20k-hr battery · 1.75 oz
Requires: red-dot riser/mount (Picatinny → Leupold DeltaPoint Pro footprint)
Where to buy≈ $350 MSRP - Vortex ViperNeeds MountClose Range
6 MOA dot · Open · 30k-hr battery · 1.03 oz
Requires: Docter/Venom Picatinny riser mount
Where to buy≈ $250 MSRP
Want a different optic type? See every optic that fits the Ruger AR-556.
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 Ruger AR-556?
- All Red Dots listed below are verified to fit the Ruger AR-556. 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 Ruger AR-556?
- 107 Red Dots in our catalog are confirmed to fit the Ruger AR-556, each shown with the exact plate or mount it needs.
- Do these Red Dots mount directly, or need a separate mount on the Ruger AR-556?
- It varies by model — each one shows whether it mounts directly to the Ruger AR-556's rail or cut, or needs a specific plate or mount. Fitment is verified per optic, not assumed.