--- title: "Strategic Sciences MFMD 5.56 Black Suppressor" description: "NFA-regulated 5.56×45 NATO muzzle device with 1/2x28 direct-thread mounting, 0.0\" OTB requirement, shims, and torque tool included." canonical_url: "https://www.kygunco.com/product/strategic-sciences-md-muzzle-device-only-5.56-0.0-otb-1-2x28-suppressor-black" meta: author: KYGUNCO "og:description": "NFA-regulated 5.56×45 NATO muzzle device with 1/2x28 direct-thread mounting, 0.0\" OTB requirement, shims, and torque tool included." "og:image": "https://cdn.kygunco.com/assets/products/304695/thumbnail.jpg?v=1773752215" "og:image:height": "500" "og:image:width": "500" "og:title": "Strategic Sciences MFMD 5.56 Black 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) / STR-MFMD-5.56-0.0-MD-1/2X28-BK ![Main product image](https://static.kygunco.com/cdn-cgi/image/f=auto,w=600/assets/products/304695/main.jpg?v=1773752215) For illustration purposes only, this image may not be an exact representation of the product. # STRATEGIC SCIENCES MFMD 5.56 0.0 OTB 1/2X28 Suppressor - Black The Strategic Sciences MFMD-MD is an NFA-regulated muzzle device for 5.56×45 NATO platforms with 1/2x28 threads. Its direct-thread design requires a 0.0" over-the-barrel setup, with the barrel shoulder even with or ahead of any obstruction. Included shims and a torque tool support installation, while the device is designed to reduce flash, sound at the shooter’s ear, and rearward recoil. See Price In Cart ** 5 interest-free payments of **$308.80** 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 # 304695 Style STR-MFMD-5.56-0.0-MD-1/2X28-BK UPC 850083783006 Condition New Manufacturer [Strategic Sciences](https://www.kygunco.com/brand/strategic-sciences) Model MFMD Caliber 5.56 NATO Weight 2 lb Action Silencer The MFMD-MD is an NFA-regulated muzzle device engineered to deliver measurable signature and recoil reduction on 5.56 platforms. Designed for rifles with 1/2x28 threads, it mounts flush with a 0.0" over-the-barrel requirement—installation is possible only when the barrel shoulder sits even with or ahead of any obstruction, ensuring a true direct-thread interface. The device installs using the included shims and torque tool, eliminating the need for adapters while providing precise alignment. Once mounted, the MFMD-MD significantly reduces flash, sound at the shooter’s ear, and rearward recoil force compared to a standard flash hider. These performance gains are achieved without altering bolt velocity and without the additional SD or SDX components. FEATURES - NFA Status: NFA-regulated muzzle device - Caliber Compatibility: 5.56×45 NATO - Thread Pattern: 1/2x28 - Mounting Type: Direct thread - Installation Tools: Shims and torque tool included - OTB Requirement: 0.0" (flush from barrel shoulder) - Flash Reduction: \~40% vs. baseline flash hider - Sound Reduction: \~17 dB at right ear vs. baseline - Rearward Recoil Reduction: \~53% vs. baseline - Bolt Velocity Change: ±2% from baseline ** 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). ## Watch The Product In Action ## 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/strategic-sciences-md-muzzle-device-only-5.56-0.0-otb-1-2x28-suppressor-black#webpage","@type":"WebPage","description":"NFA-regulated 5.56×45 NATO muzzle device with 1/2x28 direct-thread mounting, 0.0\" OTB requirement, shims, and torque tool included.","name":"Strategic Sciences MFMD 5.56 Black 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