--- product_id: 511748489 title: "C+H Precision Optics Adapter Plate with 10-8 Rear Sight 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: "€ 278.39" currency: EUR in_stock: true url: https://www.desertcart.gr/products/511748489-c-h-precision-optics-adapter-plate-with-10-8-rear store_origin: GR region: Greece --- # Ultra-thin design for faster follow-up shots 6-7 threads for 2X mounting security Aircraft-grade aluminum, MIL-SPEC anodized C+H Precision Optics Adapter Plate with 10-8 Rear Sight 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:** € 278.39 **Availability:** ✅ In Stock ## Summary > 🔧 Elevate your SIG P320 Legion with precision and reliability that commands respect. ## Quick Answers - **What is this?** C+H Precision Optics Adapter Plate with 10-8 Rear Sight 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?** € 278.39 with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.gr](https://www.desertcart.gr/products/511748489-c-h-precision-optics-adapter-plate-with-10-8-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 - • **Lifetime Confidence:** Backed by C+H’s lifetime warranty—built to perform and last as long as your mission demands. - • **Optimized Compatibility:** Specifically engineered for SIG P320 Legion Romeo 1 Pro Optic Ready models and top-tier optics like Trijicon RMR/SRO & Holosun 407C series. - • **Slim & Lightweight Profile:** Ultra-thin plates reduce height over bore, enabling quicker target reacquisition. - • **Precision Aircraft Aluminum:** Crafted from MIL-SPEC Type III hard coat anodized aluminum for military-grade durability. - • **Unmatched Mounting Security:** Patented T-Nut system doubles thread engagement for rock-solid optic stability. ## Overview The C+H Precision Optics Adapter Plate is a MIL-SPEC Type III hard anodized aircraft aluminum mounting solution 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 unmatched optic stability. Its ultra-thin profile reduces height over bore for faster follow-up shots and is compatible with leading optics including Trijicon RMR/SRO and Holosun 407C/507C series. This tactical-grade adapter plate comes with a lifetime warranty, making it the definitive upgrade for serious SIG P320 Legion users. ## Description C+H Precision Optics Adapter Plate with 10-8 Rear Sight for SIG P320 Legion (X-Five/M17/M18) with Romeo 1 Pro Optic Ready Cut and Trijicon RMR/SRO, Holosun 407C/507C/508C/508T ## 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, 507C X2, 508C, 508T, 508T X2. Compatible with C+H COMP & EDC-XL. NOT compatible with Trijicon RCR. - 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 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 | |---------------|-------| | Brand | C+H | | Color | Black | | Style | Tactical | | Sport | Hunting | | Material | MIL-SPEC Type III Hard Anodized Aluminum | | Magnification Maximum | 9 x | | Compatible Devices | SIG P320 Legion (X-Five/M17/M18) with Romeo 1 Pro Optic Ready Cut, Trijicon RMR/SRO, Holosun 407C/508C | | Mounting Type | Proprietary Mount | | Night vision | No | | Model Name | SGX-RSH-10-8 | | Manufacturer | C&H Precision | | Reticle Type | Dot | | UPC | 616943734300 | | Item Package Dimensions L x W x H | 5.79 x 3.78 x 0.47 inches | | Package Weight | 0.04 Kilograms | | Item Dimensions LxWxH | 2 x 0.5 x 0.1 inches | | Brand Name | C+H | | Warranty Description | C+H offers a LIFETIME WARRANTY that covers defects in materials and workmanship. We stand behind our product for life! | | 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 | ## Product Details - **Brand:** C+H - **Color:** Black - **Style:** Tactical - **Sport:** Hunting - **Material:** MIL-SPEC Type III Hard Anodized Aluminum - **Magnification Maximum:** 9 x - **Compatible Devices:** SIG P320 Legion (X-Five/M17/M18) with Romeo 1 Pro Optic Ready Cut, Trijicon RMR/SRO, Holosun 407C/508C - **Mounting Type:** Proprietary Mount - **Night vision:** No - **Model Name:** SGX-RSH-10-8 ## Images ![C+H Precision Optics Adapter Plate with 10-8 Rear Sight 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/5121dxNaDsL.jpg) ## Frequently Bought Together - C+H Precision Optics Adapter Plate with 10-8 Rear Sight for SIG P320 Legion (X-Five/M17/M18) with Romeo 1 Pro Optic Ready Cut and Trijicon RMR/SRO, Holosun 407C/507C/508C/508T - HOLOSUN HE507COMP-GR / HS507COMP CRS 2 MOA Dot & 8/20/32 MOA Circle Reflex Pistol Sight with Large Objective Lens - Durable Shake-Awake Parallax-Free Aluminum Handgun Sight - Green & Red Options - Streamlight 69260 TLR-1 HL 1000-Lumen Rail Mounted Strobing Tactical Weapon Light with Rail Locating Keys and Lithium Batteries, Black --- ## Why Shop on Desertcart? - 🛒 **Trusted by 1.3+ Million Shoppers** — Serving international shoppers since 2016 - 🌍 **Shop Globally** — Access 737+ million products across 21 categories - 💰 **No Hidden Fees** — All customs, duties, and taxes included in the price - 🔄 **15-Day Free Returns** — Hassle-free returns (30 days for PRO members) - 🔒 **Secure Payments** — Trusted payment options with buyer protection - ⭐ **TrustPilot Rated 4.5/5** — Based on 8,000+ happy customer reviews **Shop now:** [https://www.desertcart.gr/products/511748489-c-h-precision-optics-adapter-plate-with-10-8-rear](https://www.desertcart.gr/products/511748489-c-h-precision-optics-adapter-plate-with-10-8-rear) --- *Product available on Desertcart Greece* *Store origin: GR* *Last updated: 2026-05-06*