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SIG SAUER Universal Reflex Sight Riser Mount
$99.99 $69.99 Save 30%
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Despite what you may read, you CAN install a Sig Romeo1 (I do NOT mean the Romeo1T) on this mount!

by Glen from NV, Verified Owner from NV, United States Written on August 17, 2025
If you read about this mount in reviews and elsewhere, you'll read that it won't accept the Romeo1 RDS. This is not true although a bit of fitting is required.

Caveat: I'm not a machinist. Never hold a workpiece in your hand when using powered rotating machinery. If you fumble and wind up not being able to count higher than nine without taking off your shoes, I'm not responsible. I warned you! :-)

To install a Romeo1 on this mount, you'll need the following:

2 M4-0.7 X 10MM socket head screws
Machinist's drill bits #22, #23 and #24 - do NOT attempt this with ordinary drill sets
Milling machine, drill press or other method to turn drill bits
A method to turn the screw head diameter to 0.24"
Cold blue
400 grit sandpaper

You'll need to open the Romeo1's mounting screw holes to accept the M4 screws as the OEM mounting screws are smaller. You may find it difficult to clamp this sight in a vise. The only such surfaces are the sides of the sight hood, which I don't recommend as any significant pressure will deform the hood and crack or break the sight window, and the parallel surfaces at the rear of the sight. The sight body material is relatively soft so use caution when clamping and reaming. Use the #24, #23 and #22 machinist's bits in that order to ream the screw holes to a diameter that will accept the M4 screws.

You'll also need to reduce the diameter of the screws' socket heads. The OEM screw heads measure approximately 0.24 by calipers. I turned the dia...
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Pros:
  • You CAN fit a Romeo1 to this mount!
Cons:
  • Fitting the Romeo1 takes some machining
Would recommend: Yes
Was it helpful to you? Yes | No

Universal Mount

by Sheck, Verified Owner from NH, United States Written on May 11, 2025
Fit my Romeo optic perfect on a SPX Extreme Defender Shotgun.
Would recommend: Yes
Was it helpful to you? Yes | No

Awesome mount

by Robert Rootz, from AR, United States Written on December 7, 2024
I bought this for the Romeo 1 pro. To mount on the Pic rail on the ruger 22/45 lite. So far it is pretty awesome. I'm sure it could be used for a numerous different red dots. Not for the Romeo 1.
Would recommend: Yes
Was it helpful to you? Yes | No
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