Red Dots That Fit the Sig Sauer P365 AXG Legion
16 red dots in our database fit the Sig Sauer P365 AXG Legion directly, on its factory RMSc / SIG-LOC Compact optic cut. The AXG Legion uses the RMSc-pattern cut on its standard SKUs, with 365AXGCA-9-LEGION-RXSL on Sig’s SIG-LOC Compact cut instead. Two things about this gun change what an optic has to do rather than how it mounts: the alloy AXG grip module makes it the heaviest gun in the family, and the integrated compensator puts a shorter barrel under a full-length slide. Both flatten recoil, which means less work for the dot to return to the same place.
- Standard P365 AXG Legion SKUs use the RMSc-pattern cut; 365AXGCA-9-LEGION-RXSL uses SIG-LOC Compact (Sig Sauer spec sheets, verified September 2026).
- The AXG runs an integrated compensator, so its barrel is shorter than its slide — a gun built to be shot fast, where dot return matters more than absolute window size.
- 16 optics fit the P365 AXG Legion as a direct mount; 15 of them have live, feed-verified prices today.
- The least expensive with a verified price right now is the Sig Sauer Romeo RS Compact at $149.99.
- 9 of the fitting optics are enclosed-emitter designs, including the Osight S.
Every red dot that fits the P365 AXG Legion
| Optic | Footprint | Reticle | Window | Battery life | Price | |
|---|---|---|---|---|---|---|
 Sig Sauer Romeo RS CompactSig Sauer | Shield RMSc | 3 MOA / 6 MOA / Circle Dot | 24mm | 20,000 hrs | $149.99 | Buy at OpticsPlanet ↗ |
 Osight SOlight | Shield RMSc | 2 MOA Dot & 32 MOA Circle | 0.83" x 0.55" | 21,900 hrs at level 3 | $150.00 | Buy at OpticsPlanet ↗ |
 Osight KOlight | Shield RMSc | 6 MOA Dot | 0.83" x 0.55" | 75,000 hrs | $159.99 | Buy at Olight ↗ |
 Osight SEOlight | Shield RMSc | 2 MOA Dot & 32 MOA Circle / 6 MOA Dot | 0.83" x 0.55" | 75,000 hrs | $179.99 | Buy at OpticsPlanet ↗ |
 Sig Sauer Romeo MDCSig Sauer | Shield RMSc | 3 MOA / 6 MOA | 25mm | 20,000 hrs | $193.99 | Buy at OpticsPlanet ↗ |
 Vortex Defender CCWVortex | Shield RMSc | 3 MOA / 6 MOA Dot | micro | 9,500 hrs | $209.99 | Buy at OpticsPlanet ↗ |
 Holosun 407K X2Holosun | Holosun K-Series / Modified RMSc | 6 MOA Dot | 0.77" x 0.58" | 50,000 hrs | $224.99 | Buy at OpticsPlanet ↗ |
 Holosun 507K X2Holosun | Holosun K-Series / Modified RMSc | 2 MOA Dot & 32 MOA Circle (MRS) | 0.77" x 0.58" | 50,000 hrs | $319.99 | Buy at OpticsPlanet ↗ |
 Holosun EPSHolosun | Holosun K-Series / Modified RMSc | 2 MOA Dot / 6 MOA Dot / MRS (2 MOA + 32 MOA Circle) | 0.91" x 0.63" | 50,000 hrs | $329.99 | Buy at OpticsPlanet ↗ |
 Holosun EPS CarryHolosun | Holosun K-Series / Modified RMSc | 2 MOA Dot / 6 MOA Dot / MRS (2 MOA + 32 MOA Circle) | 0.77" x 0.58" | 50,000 hrs | $329.99 | Buy at OpticsPlanet ↗ |
| Shield RMSc | 3 MOA Dot / Multi-Reticle (3 MOA + 32 MOA) | ~0.79" x 0.73" | 125,000 hrs (solar) / 9,500 hrs (battery only) | $379.00 | Buy at OpticsPlanet ↗ | |
 Sig Sauer Romeo X-CompactSig Sauer | Shield RMSc | 6 MOA | 0.81" x 0.62" | 20,000 hrs | $379.99 | Buy at OpticsPlanet ↗ |
 Holosun SCS Carry GRHolosun | Holosun K-Series / Modified RMSc | 2 MOA Dot & 32 MOA Circle | 0.77" x 0.58" | 20,000 Hrs Reserve | $399.99 | Buy at OpticsPlanet ↗ |
 Sig Sauer Romeo-X Enclosed CompactSig Sauer | Shield RMSc | 3 MOA / 6 MOA / Circle Dot | 24mm | 20,000 hrs | $479.99 | Buy at OpticsPlanet ↗ |
 Sig Sauer Romeo-X SIG-LOC CompactSig Sauer | SIG-LOC Compact | 3 MOA / 6 MOA / Circle Dot | 24mm | 20,000 hrs | $529.99 | Buy at OpticsPlanet ↗ |
 Holosun EPS COREHolosun | Shield RMSc | 2 MOA Dot / 3 MOA Dot / 32 MOA Circle / MRS | 0.9" x 0.63" | 50,000 hrs | Check price | Buy at OpticsPlanet ↗ |
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Is the Sig P365 AXG Legion optic-ready from the factory?
Yes. Current AXG Legion SKUs ship cut under a removable cover plate — the RMSc pattern on standard guns, and SIG-LOC Compact on the -RXSL SKU.
Does the Holosun 507K fit the Sig P365 AXG Legion?
Yes on the standard RMSc-pattern SKUs. The 507K X2 uses the Holosun K-series footprint, a modified RMSc, so it mounts directly with no adapter plate.
Does the AXG Legion’s compensator affect which red dot to choose?
Not which one fits — the footprint is set by the slide cut, not the comp. It does change what the optic has to cope with: a comp plus an alloy grip module means less muzzle rise, so the dot stays in the window more of the time and reticle size matters less than it does on a light gun.
Which P365 AXG Legion SKU has the SIG-LOC cut?
365AXGCA-9-LEGION-RXSL, per Sig’s spec sheets as verified in September 2026. The other current Legion SKUs are the RMSc pattern.