The Sig Sauer P356, P365X P365XL P365X Macro & P365 Fuse are compact pistols developed for conceal carry and competitive shooting by Sig Sauer. Known for their modularity, reliablity and concealability. These pistols feature a RMSc Or Sig-Loc cut for micro compact reflex optics. Recommend options and combinations.
Holosun EPS Core
Featuring a true RMSc footprint with the same profile of the eps carry and the window size of the EPS standard the EPS core at unbeatable price. Direct Mounts with with SIG LOC & Sig RMSc cuts.
Pros:
- Proven and reliable design
- Enclosed Emitter
- Easy Concealment
- Affordable
Cons:
Holosun EPS Carry
Our Top pick for the most bang for your buck. A modified RMSc enclosed optic known for its reliability and reticle options. This optic is capabale of direct mount on both the standard P365 & SigLoc optic cut cut slides that are becoming standardized on all new P365 Slides.
Pros:
- Proven and reliable design
- Enclosed Emitter
- Easy Concealment
- Direct Mount Capable
Cons:
- Not a true RMSc
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Optic guide for Sig Sauer P365 P365X P365XL P365XL Skip to navigation Skip to contentYour Cart
Best Optic for the Sig Sauer P365
The Sig Sauer P356, P365X P365XL P365X Macro & P365 Fuse are compact pistols developed for conceal carry and competitive shooting by Sig Sauer. Known for their modularity, reliablity and concealability. These pistols feature a RMSc Or Sig-Loc cut for micro compact reflex optics. Recommend options and combinations.
Holosun EPS Core
Featuring a true RMSc footprint with the same profile of the eps carry and the window size of the EPS standard the EPS core at unbeatable price. Direct Mounts with with SIG LOC & Sig RMSc cuts.
Pros:
- Proven and reliable design
- Enclosed Emitter
- Easy Concealment
- Affordable
Cons:
Holosun EPS Carry
Our Top pick for the most bang for your buck. A modified RMSc enclosed optic known for its reliability and reticle options. This optic is capabale of direct mount on both the standard P365 & SigLoc optic cut cut slides that are becoming standardized on all new P365 Slides.
Pros:
- Proven and reliable design
- Enclosed Emitter
- Easy Concealment
- Direct Mount Capable
Cons:
- Not a true RMSc
407k & 507k Series
Budget friendly selection with modified RMSc open emitter optic known for their low drag design & easy concealability. The K series of optic are capable of direct mounting on the traditional P365 Compact RMSc cut slides. We do not recommend trying to mount this on a Sig-Loc slide.
Pros:
- Proven and reliable design
- Budget Friendly
- Easy Concealment
Cons:
- Not a true RMSc
- Open Emitter
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Trijicon RMRCC
Deploy the crisp & high quality Trijicon red dots in the RMRcc footprint for your single stack slides. You must pair these with the C&H Precision plate listed. Please note this optic & plate combo seats the red dot higher then the other optics listed due to Trijicon’s proprietary design.
Pros:
- Proven and reliable design
- American made
Cons:
- Limited mounting options
- High height over bore.
- Open Emitter
1. AC32095: Slides into the Rear Iron Sight dovetail and sits on top of the Slide.
2. AC32096: This is designed to work with P365 Slides that lose their rear iron sights when the optic cut cover plate is taken off. Will Not work with the SIG-Loc or most other Sig Slides
Sig Saur RMSc & SIG-Loc Optics
Sig Sauers full line of RMSc & Sig Loc Compactible Optics Cover the full range of features and budget constrains. From Polymer Chassis budget minded builds to fully enclosed cutting edge Compact Dots. All of Sig Sauers optics are also covered with a unlimited lifetime warranty no receipts required.
The Romeo RS
Is a new line of budget friendly red dots with a hybrid chassis integrating a polymer and aluminum design. This series of optics is capable of mounting on all P365 variants.
Pros:
- Unlimited Lifetime Warranty
- Extremely Budget Friendly
Cons:
- High Deck Height
- Open Emitter
The Romeo-X Compact Open Emitter
Is the newest generation of open emitter optics from Sig. Featuring a unlimited lifetime warranty. A user friendly battery tray & the full feature set for a direct mount true RMSc optic.
Pros:
- Unlimited Lifetime Warranty
- Tritium Integration Iron Sights
- Direct Mount to All RMSc and Sig-Loc Compact
- Low Deck Height
Cons:
- Price Point
- Open Emitter
The Romeo-X Compact Enclosed
The Romeo-X Compact Enclosed is the ulimate evolution of true RMSc red dots designed for the every day carry user.
Pros:
- Unlimited Lifetime Warranty
- Direct Mount to All RMSc and Sig-Loc Compact
- Low Deck Height
- Enclosed Emitter
Cons:
- Price Point
The Romeo-X Compact Sig-Loc
The Latest in optic innovation is the Sig-Loc Series of Optic designed for Sig Sauers proprietary mounting system that fastens from within the slide. Designed around maximum retention and minimal deck height the Sig-Loc optic reduces parallax and improves depth of field without compromising co-witness.
Pros:
- Unlimited Lifetime Warranty
- Lowest Deck Height
- Enclosed Emitter
- Improved Depth of view
Cons:
- Price Point
- SIG-LOC Compact ONLY
Viridan RMSc Optics
Viridan marries budget friendly with quality green emitters to bridge the gap in the industry for all users who see better with green.
Pros:
- Budget Friendly
- True RMSc Fit
Cons:
- Open Emitter
Ruger Ready Dot
Viridan marries budget friendly with quality green emitters to bridge the gap in the industry for all users who see better with green.
Pros:
- Budget Friendly
- True RMSc Fit
- Always on in lighted conditions
Cons:
- Open Emitter
- Will not work in the dark
Shield Sights
Shield Sights pioneered the Shield RMSc footprint allow a wide selection of both polymer & aluminum body optics that mount directly and allow for co-witness.
Pros:
- Budget Friendly
- True RMSc Fit
- Low Deck Height
Cons:
- Open Emitter
- Bottom Mount Battery on Most Units
Final considerations for the P365
This selection is a comprehensive selection of almost all optics that will mount with minimal overhang & slim profile. That being said we do carry other optics that will fit but generally have a wider form, RMS series optics by Shield & the EPS standard series. If you are new to the Red dots and Micro Optics for handguns please read our Optics Primer at the bottom dropdown of this page.
Contact us for pricing on Optics not already marked down for sale! We price match/price beat if you have a quote reach out to us.
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