--- title: "Sig Sauer Hexium 300 Blackout Suppressor" description: ".300 AAC Blackout suppressor with a titanium and Inconel core, HUB-compatible 5/8x24 direct-thread mount, modular end cap interface, and black Cerakote finish." canonical_url: "https://www.kygunco.com/product/sig-sauer-hexium-300-blackout-titanium-suppressor" meta: author: KYGUNCO "og:description": ".300 AAC Blackout suppressor with a titanium and Inconel core, HUB-compatible 5/8x24 direct-thread mount, modular end cap interface, and black Cerakote finish." "og:image": "https://cdn.kygunco.com/assets/products/289602/thumbnail.jpg?v=1750684541" "og:image:height": "500" "og:image:width": "500" "og:title": "Sig Sauer Hexium 300 Blackout Suppressor" --- > Index of every page on this site: [llms.txt](https://www.kygunco.com/llms.txt) [Home](https://www.kygunco.com/) / [Shooting](https://www.kygunco.com/category/shooting) / [Guns](https://www.kygunco.com/category/shooting/guns) / [Class III](https://www.kygunco.com/category/shooting/guns/class-iii) / [Suppressors](https://www.kygunco.com/category/shooting/guns/class-iii/suppressors) / SGS-HEXIUM300 ![Main product image](https://static.kygunco.com/cdn-cgi/image/f=auto,w=600/assets/products/289602/main.jpg?v=1750684541) For illustration purposes only, this image may not be an exact representation of the product. # SIG SAUER HEXIUM 300 Blackout Titanium Suppressor The Sig Sauer Hexium 300 is a .300 AAC Blackout suppressor with a 3D-printed titanium and Inconel core designed for low back pressure and thermal durability. It features a HUB-compatible 5/8x24 direct-thread mount, modular end cap interface, hexagonal exterior pattern, and black high-temperature Cerakote finish. It measures 8.95 inches long, weighs 15 ounces, and has a 1.75-inch diameter. $999.99 ** 5 interest-free payments of **$200** with ![Sezzle logo](https://www.kygunco.com/brands/sezzle.svg) ** Online In Store ** Free Shipping Enjoy delivery to the Lower 48 States at no cost. ** NFA / Class 3 NFA transfer requirements vary by product and location. Additional documentation, approvals, or a qualified dealer may be required. Check local and state regulations to ensure eligibility and compliance before purchasing. ** Ships To FFL Dealer Handled by our expert shippers in Bardstown, KY. ** Check Local Restrictions Not sure whether this item can be shipped to your area? Enter your ZIP code for a quick check. Item # 289602 Style HEXIUM300 UPC 798681731701 Condition New Manufacturer [Sig Sauer](https://www.kygunco.com/brand/sig-sauer) Model Hexium Caliber 300 AAC Blackout Weight 15 oz Action Silencer The Hexium 300 utilizes a hybrid 3D printed titanium and Inconel core to achieve a balance between lightweight maneuverability and extreme thermal durability. Titanium provides weight savings and corrosion resistance, while Inconel offers superior performance under sustained fire and high-pressure cycles. This internal architecture is specifically engineered for low back pressure operation, which helps mitigate gas blowback into the shooter’s face when used on semi-automatic systems, while preserving consistent cycling reliability. Externally, the Hexium 300 features a rugged hexagonal relief pattern milled into the surface of the suppressor. This design enhances both heat dissipation and grip during installation or removal. Finished in matte black Cerakote, the exterior is resistant to abrasion, solvents, and high temperatures, ensuring long-lasting visual and functional integrity. The suppressor is optimized for .300 AAC Blackout, offering superior decibel reduction across subsonic and supersonic ammunition types. Installation is handled via the HUB-compatible taper direct thread mount system. This ensures secure barrel engagement and consistent alignment, which translates into improved accuracy and point-of-impact retention. Additionally, the Hexium 300 includes an end cap accessory mounting system, allowing the shooter to swap end caps for caliber-specific tuning or flash mitigation depending on operational needs. **Features** - Exceptionally quiet performance with new baffle geometry - Low back pressure internal design for cleaner operation - HUB compatible with Direct Thread steel mount - Tool-less modular end cap accessory interface - External hex pattern with black hi-temp Cerakote finish - 3D-printed titanium suppressor body - Infinite Guarantee **Specifications** - Model: HEXIUM300 - Caliber: 300 BLK - Material: Titanium - Diameter: 1.75 in - Overall Length: 8.95 in (227 mm) - Weight: 15 oz (425 g) - Attachment Type: HUB compatible, Direct Thread steel mount - Thread Pitch: 5/8×24 - Finish: Black hi-temp Cerakote Shop with KYGUNCO for the best selection, competitive pricing, and exceptional customer service. Experience the difference that comes with buying from a trusted outdoor retailer with over 20 years of experience in the industry. ** WARNING: This product contains chemicals known to the State of California to cause cancer, birth defects, or other reproductive harm. For more information, go to [www.p65warnings.ca.gov](https://www.p65warnings.ca.gov). ## Frequently Bought Together 0.0 ** ** ** ** ** 0 reviews ** ** ** ** ** 0 ** ** ** ** ** 0 ** ** ** ** ** 0 ** ** ** ** ** 0 ** ** ** ** ** 0 ## Don't Forget Your Ammo ```json {"@context":"https://schema.org","@graph":[{"@id":"https://www.kygunco.com/#website","@type":"WebSite","description":"Shop KYGUNCO for firearms, ammo, accessories, parts, and outdoor gear at low prices with fast, easy nationwide shipping.","name":"KYGUNCO","url":"https://www.kygunco.com/","publisher":{"@id":"https://www.kygunco.com/#/schema/organization/kygunco"}},{"@id":"https://www.kygunco.com/product/sig-sauer-hexium-300-blackout-titanium-suppressor#webpage","@type":"WebPage","description":".300 AAC Blackout suppressor with a titanium and Inconel core, HUB-compatible 5/8x24 direct-thread mount, modular end cap interface, and black Cerakote finish.","name":"Sig Sauer Hexium 300 Blackout 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