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C&H Precision Weapons Optics Adapter Plate Sig P320 Legion M17/M18 w/Romeo 1 Pro/DPP Cut SGX-RSH-GDT-ST Red Dot Sights-Footprint: RMR, $4.30 Off and Blazin' Deal w/ Free Shipping

C&H Precision Weapons Optics Adapter Plate, Sig P320 Legion M17/M18 w/Romeo 1 Pro/DPP Cut, Trijicon RMR/SRO, SGX-RSH-GDT-ST
C&H Precision Weapons Optics Adapter Plate, Sig P320 Legion M17/M18 w/Romeo 1 Pro/DPP Cut, Trijicon RMR/SRO, SGX-RSH-GDT-ST
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C&H Precision Weapons Optics Adapter Plate, Sig P320 Legion M17/M18 w/Romeo 1 Pro/DPP Cut, Trijicon RMR/SRO, SGX-RSH-GDT-ST

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Questions & Answers
Will this plate work with M17 for mounting Holosun 507 COMP? Expert Answer

Yes, this plate will allow you to mount an RMR pattern optic, including the 507 COMP, to your M17/M18 pistol.

by Ethan, Gear Expert, August 11, 2025
Will this fit my sig Sauer m17 that is not optics ready? Expert Answer

The P320 M17 only comes optic ready. If your pistol is not optic ready then you have a standard P320, or a non-M17 slide that isn't optic ready. Either way you cannot use this adapter. Please email us at Techsales@opticsplanet.com for assistance.

by Ethan, Gear Expert, August 11, 2025
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Customer Reviews
Most Recent Reviews
Optic mounting plate. by None, May 20, 2026
This plate allows me to mount a red dot pptic on a pistol. It's exactly what I needed.
Most Recent Reviews
Optics Adapter Plate - Sig P320 Legion M17/m18 W/ R1p/dpp Cut by Philip Sellers, Verified Owner, February 25, 2026
Great product, bolt on application did not have to make any adjustments for a perfect fit.
Most Recent Reviews
excellent find!!! by Charles Parker, Verified Owner, November 21, 2025
I’ve wanted a way to put the rear sight back on my M18, and this got me there!!! Good quality built plate that’s not too thick. It only takes a Glock rear sight but I’m ok with that. Found a nice blacked out one. Can’t wait to get the sight and finis...
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Most Recent Reviews
Fits great for the M17 by DD is Overpriced, Verified Owner, September 24, 2024
It fits perfectly and doesn’t stick out too much. I have a 507C on it and it holds and fits great but my only problem were the screws. It would be nice if they had the screws labeled for what optic took what but it was just a bit of extra time on ins...
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Read All 4 Reviews

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Blazin' Deal
Prices have been cut drastically on this product as part of a special offer. These prices are so low that there's no double-dipping with coupons or any additional discounts, but you'll still get the best deal out there. This offer won't last long, so don't miss out!
Red Dot Sights-Footprint:
RMR
Optic Cut:
SIG Sauer P320 Optics Ready, Trijicon RMR, Trijicon SRO
Fabric/Material:
Stainless Steel

Code: 5HT-SAP-CHP-SGX-RSH-SGX-RSH-GDT-ST

MPN: SGX-RSH-GDT-ST

UPC: 616943741247

Blazin' Deal
List: $85.99Save $4.30
$81.69

Product Info for C&H Precision Weapons Optics Adapter Plate Sig P320 Legion M17/M18 w/Romeo 1 Pro/DPP Cut

The C&H Precision plates are precision machined to the tightest tolerances on HAAS CNC machines and each plate goes through multiple quality checks before shipping. Since all the mounting hardware is replaceable, if any mounting hardware is damaged, it can be replaced without replacing the entire plate. Mounting screws included.image

Specifications for C&H Precision Weapons Optics Adapter Plate Sig P320 Legion M17/M18 w/Romeo 1 Pro/DPP Cut:

Manufacturer: C&H Precision Weapons
Red Dot Sights-Footprint: RMR
Optic Cut: SIG Sauer P320 Optics Ready, Trijicon SRO, Trijicon RMR
Fabric/Material: Stainless Steel
Color: Black
Fit: Holosun 407C, Holosun 507C
Finish: Type III Hard Anodized Mil-Spec

Package Contents:

  • C&H Precision Weapons Optics Adapter Plate Sig P320 Legion M17/M18 w/Romeo 1 Pro/DPP Cut

C&H Precision Weapons Optics Adapter Plate Sig P320 Legion M17/M18 w/Romeo 1 Pro/DPP Cut Orderable Models

List of Orderable Models

  • C&H Precision Weapons Optics Adapter Plate, Sig P320 Legion M17/M18 w/Romeo 1 Pro/DPP Cut, Trijicon RMR/SRO, SGX-RSH-GDT-ST , MPN: SGX-RSH-GDT-ST , UPC: 616943741247 , Code: 5HT-SAP-CHP-SGX-RSH-SGX-RSH-GDT-ST
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Last updated 2026-08-10 UTC.