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Q&A for SIG SAUER Romeo1 1x30mm Mini Reflex Sight, 3 MOA Dot — 272 Questions & 249 Answers

Name SIG SAUER Romeo1 1x30mm Mini Reflex Sight, 3 MOA Dot (4.2)
$419.99 $249.99 Save 40%
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Q
Jim, guest, from GA, United States, asked on January 09, 2022

Will the Romeo1 fit a IWI Masada optics ready

Expert Answer
A
Answered by Hunter, Gear Expert, from OH, United States, on April 05, 2022

The Sig Sauer Romeo 1 1x30mm Mini Reflex Sight has a proprietary footprint. So it will not fit an optics ready IWI Masada.

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Q
Paul, member, from WI, United States, asked on March 05, 2023

Will this fit the p365x macro

Expert Answer
A
Answered by Ethan, Gear Expert, from IL, United States, on March 07, 2023

The SIG SAUER Romeo 1 1x30mm Mini Reflex Sight is not compatiblr with the P365 X-Macro. This optic uses a proprietary footprint, larger than the optics the X-Macro is designed to accept. You can fit any optic with the RMSc or K footprint, such as the Sig Romeo Zero, Sig Romeo Zero Elite, Shield RMSc, Holosun 407K/507K, and Holosun EPS Carry.

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Q
Big bob, member, from KY, United States, asked on February 20, 2021

Hello, I have a Sig P320 X5 not Legion model, will this sight fit on the cutout of slide without any use of base plate? Thanks

Expert Answer
A
Answered by Armando R., Gear Expert, from IL, United States, on March 25, 2021

No, it will not. The X5 models all require the Leupold Delta Point PRO or Sig Romeo PRO. The X5 will not work with the original Romeo1.

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Q
cory, member, from MN, United States, asked on November 25, 2019

Will this fit p320 xcompact (BXR3) directly? or does it need a mounting plate? Cannot find any information about this compact

Expert Answer
A
Answered by Armando R., Gear Expert, from IL, United States, on November 27, 2019

The Sig P320X Compact rear mount accepts either the Romeo1 PRO or the Leupold Delta Point PRO and will not work with the standard Romeo1.

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Q
Marine1944, guest, from MO, United States, asked on October 09, 2025

why won't my romeo 1 fit my sig p320 axg

Expert Answer
A
Answered by Ethan, Gear Expert, from IL, United States, on October 09, 2025

The Romeo 1 uses a proprietary footprint, it is not compatible with your P320. You can fit optics that use the Deltapoint Pro footprint such as the Sig Romeo 1 Pro, Vortex Defender ST, Eotech EFLX, Holosun SCS-320 and more.

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Q
Luis Goveo, member, from PR, United States, asked on May 02, 2024

I have a FN 509sc tactical I want to know if it works alone or if you have to have a plate for it

Expert Answer
A
Answered by Ethan, Gear Expert, from IL, United States, on May 02, 2024

The SIG SAUER Romeo1 uses a proprietary footprint. None of the included optic plates would allow you to install this optic. The Romeo 1 Pro, however, uses the Deltapoint Pro footprint and would fit your 509 via the #1 MRD plate included with your pistol. The Romeo 1 Pro can be found linked below:
https://www.opticsplanet.com/sig-sauer-romeo1pro-1x30mm-red-dot-sight.html

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Q
Hector Santiago, member, from NJ, United States, asked on June 19, 2023

Will this optic suitable for sig P320 xcomp without using any mounting plate. Thank you

Expert Answer
A
Answered by Ethan, Gear Expert, from IL, United States, on June 21, 2023

The SIG SAUER Romeo 1 1x30mm Mini Reflex Sight is not compatible with your P320 X-Comp. This optic uses a proprietary footprint designed to fit earlier model P320 model pistols. Newer P320's, such as the P320 X-Comp, are cut for the Deltapoint Pro and will fit optics such as the Sig Romeo 1 Pro, Leupold Deltapoint Pro, Eotech EFLX, and Holosun SCS-320.

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Q
Ken, guest, from OK, United States, asked on March 01, 2023

Will This work on the 320 X10?

Expert Answer
A
Answered by Ethan, Gear Expert, from IL, United States, on March 02, 2023

The SIG SAUER Romeo 1 1x30mm Mini Reflex Sight is not compatible with the P320 X-Ten. You will need to use an optic with the Deltapoint Pro footprint such as the Sig Romeo 1 Pro, Leupold DeltaPoint Pro, and Eotech EFLX. You can also fit optics that use the Trijicon RMR footprint such as the Trijicon RMR and SRO, Ameriglo Haven, Swampfox Justice and more.

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Q
dakota, guest, from ND, United States, asked on February 24, 2023

will this fit a sig 365xl what came with a romeo zero from the factory

Expert Answer
A
Answered by Ethan, Gear Expert, from IL, United States, on February 24, 2023

The SIG SAUER Romeo 1 1x30mm Mini Reflex Sight is not compatible with a P365XL. You will need to use an optic with the RMSc or K footprint, such as the Shield RMSc, Sig Romeo Zero Elite, Holosun 407K/507K, and Holosun EPS Carry.

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Q
Legion 220, member, from NJ, United States, asked on January 27, 2023

I have A legion p226 will this red dot fit on this. Thanks...

Expert Answer
A
Answered by Hunter, Gear Expert, from OH, United States, on October 20, 2023

THe SIG SAUER Romeo 1 1x30mm Mini Reflex Sight, 3 MOA Dot will not fit the Legion P226. The Sig Romeo1 Pro at the link below will fit.
https://www.opticsplanet.com/sig-sauer-romeo1pro-1x30mm-red-dot-sight.html

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