Lakeline LLC

Mounting Plate for Shield RMSC, Sig Romeo 0, etc. sights on 9mm SIG SAUER Pistols

(2 reviews) + Write a Review
Return Policy:
30 days
Shipping Details:
Free ground shipping on orders over $100, multiple options at checkout
Installation Difficulty:
Medium. Minor fit filing of plate to fit dovetail may be required. Sight press recommended for rear sight. Use thread locking compound.
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Included parts:
Lakeline Sight Mounting Plate
The (7) included screws are:
For mounting sight to plate:
(2) M4 x .7 10 mm Button Head Screws
(2) M4 x .7 12 mm Button Head Screws
(2) M4 x .7 14 mm Button Head Screws
For mounting plate to pistol-
(1) (1) 5-40 x 1/8 set screw
Our Micro Red Dot sight mounting plates are machined from 7075 Aluminum alloy and hard anodized for high strength and light weight.
The rear sight on your pistol is removed and replaced with this mounting plate in order to mount your micro red-dot sight. No modifications to the pistol are needed. The mount can be removed and the rear sight reinstalled at any time.   Mounting hardware for the red dot sight is included.
This sight plate has locating bosses at the front and is milled to support the sight along the front and rear faces as well so your sight won't shift like it does on flat plates with just the screws to try to keep it aligned.  Plus, the screws don't have to be tightened to the point of deforming the optic to try to keep it in place.  And, the plate fits  the dovetail as well as being held with a set screw to assure that the sight can hold zero.
Not compatible with the Metal Shroud on the Sig Romeo 0.
This DOES fit :  Shield RMSC, Sig Romeo 0 (but not the metal shroud),  Swampfox Sentinel Micro, Holosun HS407K & HS507K, Hex Wasp Micro Red Dot, Riton X3 Tactix MPRD, ADE Spike, Salvo Optics SRC Micro Red Dot, Sightmark Mini Shot A-Spec M3 and other same footprint sights.
Fits most P series Sig Sauer pistols except P365 variants and other versions where the top of the slide is not flat.
Gunsmith installation recommended as fitting is required.  Particular care required when installing on the TX22 with its aluminum slide. 
WARNING: This product can expose you to chemicals which are known to the State of California to cause cancer and birth defects or other reproductive harm. For more information go to
Lakeline Lifetime Limited Warranty

2 Reviews Hide Reviews Show Reviews

  • 5
    Wrong part

    Posted by Robert Vaughan on 27th Apr 2024

    I ordered one after speaking with a Rep from your company. It was incorrect after sending pics, etc . So, I emailed the company and was told that I ordered the wrong one. So, I was out the cost of the first part. I then purchased the correct one and it is awesome.

  • 5
    Sig Zero mounting plate

    Posted by Kevin on 5th Nov 2022

    I have to say great job shipping. I live in the great white north and i got it in 4 days! Very impressive and it looks and fits great. Can't wait to see it on the range!