Free Shipping & Free Returns*

FREE SHIPPING on Over 250,000 Products

Enjoy free shipping during the holidays! Shop now and get Free Value Shipping on most orders over $49 to the contiguous 48 states, DC and to all U.S. Military APO/FPO/DPO addresses.

Enjoy Our Extended FREE RETURNS

We want to ensure that making a return is as easy as possible! With our Hassle-Free, Extended Holiday Returns, eligible orders placed from November 12, 2025 on will benefit from an extended return deadline (January 13, 2026 or 30 days after receipt of your order - whichever is later). We'll even cover the cost of return shipping. Learn more about our Return Policy.

Shopping Cart

What is the difference in the Romeo 1 and the Romeo 1 Pro — 5 Answers

by Bruce, from UT, United States Asked on August 29, 2019

Name SIG SAUER Romeo 1 Pro 1x30mm Reflex Red Dot Sight (4.7)
As Low As $219.99 Save Up to 58%
View Product
Continue As a Guest
Saving...
Sign In or Create an Account (optional)
Why use an OpticsPlanet.com account for my questions and answers?

Having an account with OpticsPlanet.com makes writing questions and answers even better! We’ll save all of your questions and answers in your account, provide you easy access to them, so you can see how the community has responded.

If you’d like to add a question without creating an account, you can proceed with filling out the fields on this form.

Show
Sort by
Filter by
Expert Answer
A
Answered by Armando R., Gear Expert, from IL, United States, on October 18, 2019

The only major difference is the mounting pattern. The Rome1Pro was made specifically for the M17 pattern handguns to match military specifications.

39 of 53 found the following answer helpful.
Was it helpful to you? Yes | No
A
Answered by Pierre Kerbage, member, from TX, United States, on December 24, 2021

Difference between the SIG Romeo 1 and Romeo 1 PRO:

The Romeo 1 PRO
• The mounting pattern is different – The Pro is made to mount on the M17 and has the same mounting pattern as a Delta Point Pro (DPP). So again, the new Romeo1PRO will NOT fit old Romeo1 mounts or slide cuts. The Romeo1PRO is meant specifically for the M17 cut slides and matches the Leupold Delta Point Pro red dot footprint. The PRO is more designed to fit the P320 compact
• the battery lasts longer (2 Years or 20,000 hours) but one should change the battery annually or more if you use your gun regularly.
• It comes with a shroud around the optic (Protective Shield). The Romeo 1 does NOT come with the protective shroud
• It has a better dust cover.
• It has a brighter dot
• On the PRO, the dot can go from dim to bright in 12 steps. The non-Pro goes from dim to bright.
• It is important to clarify that there are two different Romeo1 PRO models:
1. The Romeo1 PRO which is supposed to use the Leupold DPP footprint
2. And the Romeo1 T which is supposed to be the same improved /Gen3 sight with the proprietary Romeo footprint.

41 of 44 found the following answer helpful.
Was it helpful to you? Yes | No
A
Answered by Yale, member, from IN, United States, on June 24, 2020

The mounting pattern is different, the battery lasts longer, it comes with a shroud around the optic, and it has a better dust cover.

18 of 20 found the following answer helpful.
Was it helpful to you? Yes | No
A
Answered by Johnny Dawsey, member, from SC, United States, on April 21, 2020

It is also made for the foot print of a P320 x compact. Along with the Delta point Pro made by Leopold.

16 of 18 found the following answer helpful.
Was it helpful to you? Yes | No
A
Answered by Eric, member, from IA, United States, on January 04, 2020

The Romeo 1 Pro has the protective shield included and brighter dot.

16 of 19 found the following answer helpful.
Was it helpful to you? Yes | No