Red Dot Adapter Plate for Sig Sauer M17 / M18 Optics Ready – Romeo1 PRO to Vortex Viper, Venom, Burris FastFire, and Docter Footprint
Quick Check: Confirm Your Sig Slide Cut. Fits: Sig Sauer M17, Sig Sauer M18, Sig Sauer P320 X-Five Legion, Sig Sauer P320 X-Carry Optics Ready, and Sig Sauer P320 X-Compact with the Romeo1 PRO factory cut and no rear sight dovetail in the optic area.Mounting Hardware Included: 4-40 and 6-32 mounting screws included.Compatibility: Plate fits the Docter / FastFire / Viper / Venom footprint.Important: Does not fit original Romeo1 cut slides or slides with a rear sight dovetail cut in the optic area.
Installation & Overview
Selecting the correct Sig Sauer M17 red dot adapter plate is critical to ensuring proper fit, secure mounting, and reliable optic performance. This EGW adapter plate converts the factory Romeo1 PRO cut on Sig Sauer M17, M18, and compatible P320 pistols to accept a wide range of popular Docter footprint red dot sights.
Machined from 7075 aluminum and finished in matte black hardcoat, this plate delivers a durable, lightweight mounting solution for shooters looking to run optics like the Vortex Viper, Vortex Venom (open emitter), or Burris FastFire on their optics ready Sig Sauer platform.
The factory optics cover plate must be removed before installation. The EGW adapter plate mounts securely to the slide using the included 4-40 screws, and your red dot mounts to the plate using 6-32 screws. This system allows you to expand your optic compatibility without permanent slide modification.
Learn more about optic footprints: RMR vs Docter vs RMSc Footprints Guide
Technical Specifications
Mount Type: Red Dot Adapter Plate
Machined From: 7075 Aluminum
Finish: Matte Black Hardcoat
Overall Length: 1.775"
Overall Width: .99"
Fits Footprint: Docter / FastFire / Viper / Venom
Mounting Hardware Included: 4-40 and 6-32 Screws
Torque Specs: 15 in/lbs
Compatible Pistols
Sig Sauer M17 with Romeo1 PRO cut
Sig Sauer M18 with Romeo1 PRO cut
Sig Sauer P320 X-Five Legion with Romeo1 PRO cut
Sig Sauer P320 X-Carry Optics Ready with Romeo1 PRO cut and no rear sight cut
Sig Sauer P320 X-Compact with Romeo1 PRO cut and no rear sight cut
This Mount Does Not Fit the Following
Any Sig Sauer P320 models with a dovetail cut for the rear sight
Sig Sauer P320 RX
Sig Sauer P320 RX X-Compact
Sig Sauer P320 X-Five with Romeo1 cut
Sig Sauer M17 Military Surplus
Compatible Red Dots
Viridian RFX25
Vortex Viper
Vortex Venom (Open Emitter)
Burris FastFire
Burris FastFire 2
Burris FastFire 3
Burris FastFire 4
Docter
ADE RD3-001
ADE RD3-002
ADE RD3-009
UTG Reflex Micro Dot
Crimson Trace CTS-1200
Crimson Trace CTS-1300
Sightmark Mini Shot
Cuda RX-795
Why Use an Adapter Plate?
Expands optic compatibility on Romeo1 PRO cut slides
Allows use of Docter footprint red dot optics
Maintains a secure mounting platform under recoil
Avoids permanent slide modification
Ideal for duty, range, and competition setups
Mounting Hardware Included
(2) 6-32 x 5/16" Button Head Screws
(2) 6-32 x 3/8" Flat Head Screws
(2) 4-40 x 1/4" Socket Cap Head Screws
Installation Notes
Remove the factory optics cover plate
Install the EGW adapter plate
Mount your red dot optic
Apply blue Loctite
Torque to 15 in/lbs
Optional: use paper shim for easier removal later
Fitment Warning
This plate only fits Sig Sauer pistols with the Romeo1 PRO factory cut. It will not fit original Romeo1 cut slides or slides with a rear sight dovetail in the optic cut.
Warning: This product may contain trace amounts of lead. For more information, visit www.P65Warnings.ca.gov.
Location:
52 BELMONT AVE,
QUAKERTOWN
Pennsylvania
18951
