--- product_id: 207596176 title: "Ade Advanced Optics Crusader RD3-009 Red Dot Reflex Sight for Sig Sauer Standard P320 Handgun Pistol" brand: "ade advanced optics" price: "£116.68" currency: GBP in_stock: true reviews_count: 3 category: "Ade Advanced Optics" url: https://www.desertcart.co.uk/products/207596176-ade-advanced-optics-crusader-rd3-009-red-dot-reflex-sight store_origin: GB region: United Kingdom --- # 5 MOA red dot, parallax-free Waterproof 30 min @ 4ft Picatinny & Sig P320 adapter Ade Advanced Optics Crusader RD3-009 Red Dot Reflex Sight for Sig Sauer Standard P320 Handgun Pistol **Brand:** ade advanced optics **Price:** £116.68 **Availability:** ✅ In Stock ## Summary > 🎯 Lock on. Level up your aim with the Crusader RD3-009. ## Quick Answers - **What is this?** Ade Advanced Optics Crusader RD3-009 Red Dot Reflex Sight for Sig Sauer Standard P320 Handgun Pistol by ade advanced optics - **How much does it cost?** £116.68 with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.co.uk](https://www.desertcart.co.uk/products/207596176-ade-advanced-optics-crusader-rd3-009-red-dot-reflex-sight) ## Best For - ade advanced optics enthusiasts ## Why This Product - Trusted ade advanced optics brand quality - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Key Features - • **Rugged Durability:** Shockproof, fogproof, and waterproof up to 30 minutes under 4 feet of water—built to endure your toughest missions. - • **Crystal Clear Optics:** Precision ground lenses eliminate parallax, delivering a crisp, clear red dot sight picture for rapid target acquisition. - • **Powerful & Efficient:** Five illumination settings powered by a long-lasting CR2032 lithium battery included—stay mission-ready without interruptions. - • **Fully Adjustable & Lockable:** Windage and elevation adjustments lock securely, ensuring zero shifts and unlimited eye relief for personalized comfort. - • **Precision Mounting Compatibility:** Seamlessly fits Sig Sauer Standard P320 with included Picatinny and custom adapter plates for instant tactical upgrade. ## Overview The Ade Advanced Optics Crusader RD3-009 is a tactical red dot reflex sight designed exclusively for the Sig Sauer Standard P320 handgun. Featuring precision-ground lenses for parallax-free clarity, it offers a 5 MOA red dot with five brightness settings powered by an included CR2032 battery. Its rugged aluminum body is shockproof, fogproof, and waterproof for 30 minutes at 4 feet depth. The sight mounts via Picatinny rail and includes a custom adapter plate replacing the rear sight, with fully adjustable and lockable windage and elevation controls, delivering reliable performance for hunting and tactical use. ## Description desertcart.com : Ade Advanced Optics Crusader RD3-009 Red Dot Reflex Sight for Sig Sauer Standard P320 Handgun Pistol : Sports & Outdoors Review: Works great with my Sig - Very durable and strong great battery life, ez to operate Review: Customer service is awful! - Not rating product because we was unable to use it only because it did not fit our gun. Been trying to return it and unable to get any response. Horrible customer service! ## Features - Comes with a Picaitnny mounting plate. Also comes with ADE all new designed adapter plate is to REPLACE the rear sight for Sig Sauer STANDARD P320 Handgun - The P320 Plate that comes with this listing Only fits standard P320. It does NOT fit special edition like XCarry, X-5, XCompact and M17 - Crusader RD3-009 Red Dot. Shockproof, Fogproof and waterproof for 30 minutes under 4ft water. Lenses are precision ground and polished to exacting geometries to virtually eliminate parallax and to provide a very clear, crisp sight picture. - Fully windage and elevation adjustable and lockable; Unlimited Eye Relief - 5 MOA. 5 Illumination Settings. Powered by a lithium CR2032 battery(Included) ## Technical Specifications | Specification | Value | |---------------|-------| | ASIN | B087QW91W9 | | Best Sellers Rank | #536,280 in Sports & Outdoors ( See Top 100 in Sports & Outdoors ) #1,223 in Gun Sights | | Brand | Ade Advanced Optics | | Brand Name | Ade Advanced Optics | | Color | Red | | Compatible Devices | Handgun | | Customer Reviews | 3.8 out of 5 stars 14 Reviews | | Lens Color | Red | | Manufacturer | Ade Advanced Optics | | Manufacturer Part Number | RD3-009+P320S | | Material | Aluminum | | Material Type | Aluminum | | Model Name | Crusader | | Mounting Type | Picatinny Mount | | Number of Items | 1 | | Product Style | tactical | | Reticle Type | A red dot with a 5 MOA size | | Sport | Hunting | | Sport Type | Hunting | | Style | tactical | | Thread Type | Picatinny | | Unit Count | 1 Count | ## Product Details - **Brand:** Ade Advanced Optics - **Color:** Red - **Sport:** Hunting - **Material:** Aluminum - **Compatible Devices:** Handgun - **Mounting Type:** Picatinny Mount - **Night vision:** No - **Model Name:** Crusader - **Manufacturer:** Ade Advanced Optics - **Reticle Type:** A red dot with a 5 MOA size ## Images ![Ade Advanced Optics Crusader RD3-009 Red Dot Reflex Sight for Sig Sauer Standard P320 Handgun Pistol - Image 1](https://m.media-amazon.com/images/I/316W6n50QFL.jpg) ![Ade Advanced Optics Crusader RD3-009 Red Dot Reflex Sight for Sig Sauer Standard P320 Handgun Pistol - Image 2](https://m.media-amazon.com/images/I/81w3DrO1gCL.jpg) ![Ade Advanced Optics Crusader RD3-009 Red Dot Reflex Sight for Sig Sauer Standard P320 Handgun Pistol - Image 3](https://m.media-amazon.com/images/I/81Ea6lFNSAL.jpg) ![Ade Advanced Optics Crusader RD3-009 Red Dot Reflex Sight for Sig Sauer Standard P320 Handgun Pistol - Image 4](https://m.media-amazon.com/images/I/71S5wFW3vtL.jpg) ![Ade Advanced Optics Crusader RD3-009 Red Dot Reflex Sight for Sig Sauer Standard P320 Handgun Pistol - Image 5](https://m.media-amazon.com/images/I/718xmAi9jzL.jpg) ## Customer Reviews ### ⭐⭐⭐⭐⭐ Works great with my Sig *by A***R on July 3, 2024* Very durable and strong great battery life, ez to operate ### ⭐ Customer service is awful! *by C***E on November 2, 2023* Not rating product because we was unable to use it only because it did not fit our gun. Been trying to return it and unable to get any response. Horrible customer service! ### ⭐⭐⭐⭐⭐ Nice *by T***E on May 8, 2023* Good price for quality ## Frequently Bought Together - Ade Advanced Optics Crusader RD3-009 Red Dot Reflex Sight for Sig Sauer Standard P320 Handgun Pistol - EZshoot Bore Sight Laser 9mm/ 223 5.56mm/ 30-06/25-06/270 /300BLK 7.62x35mm/ 6.5CM Cal Red Laser Boresighter with Extra Batteries --- ## 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.co.uk/products/207596176-ade-advanced-optics-crusader-rd3-009-red-dot-reflex-sight](https://www.desertcart.co.uk/products/207596176-ade-advanced-optics-crusader-rd3-009-red-dot-reflex-sight) --- *Product available on Desertcart United Kingdom* *Store origin: GB* *Last updated: 2026-08-12*