---
product_id: 522891482
title: "C+H Precision Optics Adapter Plate with Glock-Compatible Rear Sight Dovetail for SIG P320 Legion (X-Five/M17/M18) with Romeo 1 Pro Optic Ready Cut and Trijicon RMR/SRO, Holosun 407C/507C/508C/508T"
brand: "c+h"
price: "€ 153.55"
currency: EUR
in_stock: true
reviews_count: 8
category: "C+H"
url: https://www.desertcart.de/products/522891482-c-h-precision-optics-adapter-plate-with-glock-compatible-rear
store_origin: DE
region: Germany
---

# Ultra-thin design for faster follow-up shots 6-7 threads T-Nut system for 2X security Aircraft-grade aluminum, MIL-SPEC anodized C+H Precision Optics Adapter Plate with Glock-Compatible Rear Sight Dovetail for SIG P320 Legion (X-Five/M17/M18) with Romeo 1 Pro Optic Ready Cut and Trijicon RMR/SRO, Holosun 407C/507C/508C/508T

**Brand:** c+h
**Price:** € 153.55
**Availability:** ✅ In Stock

## Summary

> 🎯 Elevate your SIG P320 Legion with precision, speed, and unmatched reliability!

## Quick Answers

- **What is this?** C+H Precision Optics Adapter Plate with Glock-Compatible Rear Sight Dovetail for SIG P320 Legion (X-Five/M17/M18) with Romeo 1 Pro Optic Ready Cut and Trijicon RMR/SRO, Holosun 407C/507C/508C/508T by c+h
- **How much does it cost?** € 153.55 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.de](https://www.desertcart.de/products/522891482-c-h-precision-optics-adapter-plate-with-glock-compatible-rear)

## Best For

- c+h enthusiasts

## Why This Product

- Trusted c+h brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Slim & Speedy Profile:** Ultra-thin plate reduces height over bore, enabling lightning-fast target reacquisition and follow-up shots.
- • **Versatile Optic Support:** Seamlessly compatible with Trijicon RMR/SRO and Holosun 407C/507C/508C/508T optics for elite customization.
- • **Unmatched Mounting Security:** Patented T-Nut system doubles thread engagement for rock-solid optic stability under all conditions.
- • **Tailored SIG P320 Legion Compatibility:** Specifically engineered for SIG P320 Legion models with Romeo 1 Pro Optic Ready cuts—no compromises, just perfect fit.
- • **Precision Aircraft Aluminum Craftsmanship:** MIL-SPEC Type III hard coat anodized for military-grade durability and sleek, lightweight performance.

## Overview

The C+H Precision Optics Adapter Plate is a MIL-SPEC aircraft aluminum mount designed exclusively for SIG P320 Legion models with Romeo 1 Pro Optic Ready cuts. Featuring a patented T-Nut system with nearly double the thread engagement of competitors, it ensures superior optic security. Its ultra-thin profile minimizes height over bore for faster follow-up shots and supports popular optics like Trijicon RMR/SRO and Holosun 407C/507C/508C/508T. Backed by a lifetime warranty, this adapter plate is the ultimate upgrade for tactical precision and reliability.

## Description

C+H Precision Optics Adapter Plate with Glock-Compatible Rear Sight Dovetail for SIG P320 Legion (X-Five/M17/M18) with Romeo 1 Pro Optic Ready Cut and Trijicon RMR/SRO, Holosun 407C/507C/508C/508T

Review: Sig - Perfect fit
Review: Works perfect - Fit perfect, no issues, easy to install

## Features

- COMPATIBILITY: ONLY compatible with SIG P320 Legion models with Romeo 1 Pro Optic Ready RMR/DPP Cut. P320 M17, P320 M18, P320 XCarry Legion, P320 XFive Legion, P320 XFive California Complaint, P320 XFive SXG, P320 M17 Ceremonial, P320 M18X, P320 M17X, P320 M18 California Compliant
- OPTIC COMPATIBILITY: ONLY compatible with Trijicon Type 1 & Type 2 RMR & SRO. Compatible with Holosun 407C, 507C, 507Comp, 508T
- DOUBLE THE THREADS, DOUBLE THE RELIABILITY: Patented T-Nut mounting system features 6 to 7 threads of engagement—nearly double the competition—offering 2X the security and reliability.
- ULTRA THIN PLATES: Our patented ultra-thin plates are designed to be slimmer and lighter than the competition, reducing height over bore and enabling quicker follow-up shots.
- PRECISION MACHINED AIRCRAFT ALUMINUM: Crafted from aircraft-grade aluminum, our plates are precision machined and MIL-SPEC TYPE III hard coat anodized to surpass industry standards for durability and quality.
- This plate is for slides that LOSE the rear iron sight when the cover plate is removed. This plate requires a Romeo 1 Pro Optic Ready Cut. Refer to the images above to verify your slide has the correct holes and cut.

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B09YYYVLYB |
| Best Sellers Rank | #163,109 in Sports & Outdoors ( See Top 100 in Sports & Outdoors ) #622 in Sporting Optics Mounts |
| Brand | C+H |
| Brand Name | C+H |
| Color | Black |
| Compatible Devices | SIG P320 Legion (X-Five/M17/M18) |
| Customer Reviews | 4.1 4.1 out of 5 stars (35) |
| Date First Available | March 29, 2022 |
| Included Components | Qty 1 – Optic Plate, Qty 3 – 4-40 x .280 FHB Holosun 507C / 508T Optic Mounting Screws, Qty 3 – 4-40 x .320 FHB Trijicon RMR Optic Mounting Screws, Qty 3 – 4-40 x .345 FHB Trijicon SRO , CHPWS COMP / EDC XL Optic Mounting Screws Qty 3 – 4-40 x .250 FHB Optic Mounting Screws Qty 3 – Patented 416 Stainless Steel T-Nuts, Qty 3 – M4 x 6 MM M3H Plate Mounting Screws |
| Item Dimensions LxWxH | 2 x 0.5 x 0.1 inches |
| Item Package Dimensions L x W x H | 5.71 x 3.86 x 0.47 inches |
| Magnification Maximum | 9 x |
| Magnification Minimum | 2 x |
| Manufacturer | C+H |
| Material | MIL-SPEC Type III Hard Anodized Aluminum |
| Model Name | SGX-RSH-GDT-ST |
| Mounting Type | Dovetail Mount |
| Night vision | No |
| Package Weight | 0.02 Kilograms |
| Part Number | SGX-RSH-GDT |
| Style | Tactical |
| Thread Type | T-Nut |
| UPC | 616943731477 |
| Warranty Description | C+H offers a LIFETIME WARRANTY that covers defects in materials and workmanship. We stand behind our product for life! |

## Product Details

- **Brand:** C+H
- **Color:** Black
- **Compatible Devices:** SIG P320 Legion (X-Five/M17/M18)
- **Magnification Maximum:** 9 x
- **Magnification Minimum:** 2 x
- **Material:** MIL-SPEC Type III Hard Anodized Aluminum
- **Mounting Type:** Dovetail Mount
- **Night vision:** No
- **Style:** Tactical
- **Thread Type:** T-Nut

## Images

![C+H Precision Optics Adapter Plate with Glock-Compatible Rear Sight Dovetail for SIG P320 Legion (X-Five/M17/M18) with Romeo 1 Pro Optic Ready Cut and Trijicon RMR/SRO, Holosun 407C/507C/508C/508T - Image 1](https://m.media-amazon.com/images/I/51yD9juN3LL.jpg)
![C+H Precision Optics Adapter Plate with Glock-Compatible Rear Sight Dovetail for SIG P320 Legion (X-Five/M17/M18) with Romeo 1 Pro Optic Ready Cut and Trijicon RMR/SRO, Holosun 407C/507C/508C/508T - Image 2](https://m.media-amazon.com/images/I/81pBm+s+gZL.jpg)
![C+H Precision Optics Adapter Plate with Glock-Compatible Rear Sight Dovetail for SIG P320 Legion (X-Five/M17/M18) with Romeo 1 Pro Optic Ready Cut and Trijicon RMR/SRO, Holosun 407C/507C/508C/508T - Image 3](https://m.media-amazon.com/images/I/71g6YXbrNOL.jpg)
![C+H Precision Optics Adapter Plate with Glock-Compatible Rear Sight Dovetail for SIG P320 Legion (X-Five/M17/M18) with Romeo 1 Pro Optic Ready Cut and Trijicon RMR/SRO, Holosun 407C/507C/508C/508T - Image 4](https://m.media-amazon.com/images/I/810dISXiM6L.jpg)
![C+H Precision Optics Adapter Plate with Glock-Compatible Rear Sight Dovetail for SIG P320 Legion (X-Five/M17/M18) with Romeo 1 Pro Optic Ready Cut and Trijicon RMR/SRO, Holosun 407C/507C/508C/508T - Image 5](https://m.media-amazon.com/images/I/71QzuVjpwbL.jpg)

## Customer Reviews

### ⭐⭐⭐⭐⭐ Sig
*by A***O on February 2, 2026*

Perfect fit

### ⭐⭐⭐⭐⭐ Works perfect
*by A***R on January 16, 2026*

Fit perfect, no issues, easy to install

### ⭐⭐⭐⭐ The item
*by A***R on July 25, 2025*

This part got here in a few days fit the gun perfectly. My red mounted just fine. I’ve taken it to the range. Everything is working as it should. My only complaint is that you have to put a Glock rear site for a plate that was designed for a sig so now you have to order two different sites one for the front part of your Sig and the rear part for a Glock. If you don’t mind that it’s a very good purchase..

## Frequently Bought Together

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*Product available on Desertcart Germany*
*Store origin: DE*
*Last updated: 2026-02-22*