--- title: "Yankee Hill Machine Company Mid-Length Diamond Rail" description: "Free floating forearm with diamond heat vents, extended top rail, and T-marked rails. Includes mounting hardware and accepts YHM end caps." canonical_url: "https://www.kygunco.com/product/yankee-hill-machine-company-yhm-9633-dx-mid-length-ext.-diamond" meta: author: KYGUNCO "og:description": "Free floating forearm with diamond heat vents, extended top rail, and T-marked rails. Includes mounting hardware and accepts YHM end caps." "og:image": "https://cdn.kygunco.com/assets/products/115809/thumbnail.jpg?v=1712664408" "og:image:height": "500" "og:image:width": "500" "og:title": "Yankee Hill Machine Company Mid-Length Diamond Rail" --- > 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) / [Gun Parts](https://www.kygunco.com/category/shooting/gun-parts) / [Handgun & Rifle Parts](https://www.kygunco.com/category/shooting/gun-parts/handgun-and-rifle-parts) / [Rifle Parts](https://www.kygunco.com/category/shooting/gun-parts/handgun-and-rifle-parts/rifle-parts) / [Rails & Handguards](https://www.kygunco.com/category/shooting/gun-parts/handgun-and-rifle-parts/rifle-parts/rails-and-handguards) / YNK-YHM-9633-DX ![Main product image](https://static.kygunco.com/cdn-cgi/image/f=auto,w=600/assets/products/115809/main.jpg?v=1712664408) For illustration purposes only, this image may not be an exact representation of the product. # YANKEE HILL MACHINE COMPANY MID-LENGTH EXT. DIAMOND Free floating forearm assembly from Yankee Hill Machine Company with diamond-shaped heat vents, an extended top rail for gap-free installation, and T-marked rails for accessory placement. It accepts YHM end caps and uses anti-rotation screws for secure installation. Includes one jam nut, one barrel nut, two anti-rotation screws, and one forearm tube. Email for Price ** 5 interest-free payments of **$27.44** with ![Sezzle logo](https://www.kygunco.com/brands/sezzle.svg) ** Online In Store ** Flat Rate $13.94 for every 25 lbs. Shipping to HI & AK may incur additional fees. ** Ships To Your Home Fulfilled by a partner warehouse. ** Partner Fulfilled Item # 115809 Style YNK-YHM-9633-DX UPC 816701012590 Condition New Manufacturer [Yankee Hill Machine Company](https://www.kygunco.com/brand/yankee-hill-machine-company) Weight 3 lb YHM is proud to offer it’s newest free floating forearms. These unique forearms feature diamond shaped heat vents, an extended top rail for gap-free installation, “T” marked rails to mark accessory locations, they accept YHM\`s end caps, and utilize YHM\`s anti-rotation screws for secure installation. The forearms and barrel nuts are made of 6061-T6 aluminum and hardcoated to military specifications. The jam nut and anti-rotation screws are steel and plated a matte black finish to match. Assemblies include: one jam nut, one barrel nut, two anti-rotation screws, and one forearm tube. ** 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). 0.0 ** ** ** ** ** 0 reviews ** ** ** ** ** 0 ** ** ** ** ** 0 ** ** ** ** ** 0 ** ** ** ** ** 0 ** ** ** ** ** 0 ## More from Yankee Hill Machine Company ```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/yankee-hill-machine-company-yhm-9633-dx-mid-length-ext.-diamond#webpage","@type":"WebPage","description":"Free floating forearm with diamond heat vents, extended top rail, and T-marked rails. Includes mounting hardware and accepts YHM end caps.","name":"Yankee Hill Machine Company Mid-Length Diamond Rail","url":"https://www.kygunco.com/product/yankee-hill-machine-company-yhm-9633-dx-mid-length-ext.-diamond","about":{"@id":"https://www.kygunco.com/product/yankee-hill-machine-company-yhm-9633-dx-mid-length-ext.-diamond#/schema//kygunco"},"breadcrumb":{"@id":"https://www.kygunco.com/product/yankee-hill-machine-company-yhm-9633-dx-mid-length-ext.-diamond#breadcrumb"},"isPartOf":{"@id":"https://www.kygunco.com/#website"},"potentialAction":[{"@type":"ReadAction","target":["https://www.kygunco.com/product/yankee-hill-machine-company-yhm-9633-dx-mid-length-ext.-diamond"]}]},{"@id":"https://www.kygunco.com/#/schema/organization/kygunco","alternateName":"Kentucky Gun Company","currenciesAccepted":"USD","description":"Shop KYGUNCO for firearms, ammo, gun parts, optics, shooting accessories, and outdoor gear with online ordering and shipping options across the U.S.","email":"info@kygunco.com","foundingDate":"1946-01-01","hasMap":"https://www.google.com/maps/dir/?q=place_id:ChIJfwecWCBSaIgRguIjuoPha40","logo":"https://www.kygunco.com/logos/kygunco.svg","name":"KYGUNCO","priceRange":"$$","telephone":"+1-502-348-3594","url":"https://www.kygunco.com","@type":["Organization","LocalBusiness"],"address":{"@type":"PostalAddress","streetAddress":"401 Glenwood Drive","addressLocality":"Bardstown","addressRegion":"KY","postalCode":"40004","addressCountry":"US"},"contactPoint":{"@type":"ContactPoint","contactType":"Customer Service","telephone":"+1-502-348-3594","email":"info@kygunco.com","availableLanguage":"English","hoursAvailable":{"@type":"OpeningHoursSpecification","dayOfWeek":["https://schema.org/Monday","https://schema.org/Tuesday","https://schema.org/Wednesday","https://schema.org/Thursday","https://schema.org/Friday"],"opens":"09:00","closes":"17:00"}},"geo":{"@type":"GeoCoordinates","latitude":37.8032518,"longitude":-85.4252895},"hasMerchantReturnPolicy":{"@type":"MerchantReturnPolicy","name":"Standard Return Policy","inStoreReturnsOffered":true,"merchantReturnDays":30,"returnPolicyCategory":"https://schema.org/MerchantReturnFiniteReturnWindow","returnMethod":["https://schema.org/ReturnByMail","https://schema.org/ReturnInStore"],"returnFees":"https://schema.org/FreeReturn","refundType":["https://schema.org/ExchangeRefund","https://schema.org/FullRefund","https://schema.org/StoreCreditRefund"],"applicableCountry":"US"},"hasOfferCatalog":{"@type":"OfferCatalog","name":"KYGUNCO Catalog","url":"https://www.kygunco.com/search"},"image":{"@id":"https://www.kygunco.com/#/schema/image/1"},"knowsAbout":["Firearms sales and transfers","FFL dealers and compliance","Optics and accessories","Outdoor and hunting equipment"],"openingHoursSpecification":[{"@type":"OpeningHoursSpecification","dayOfWeek":["https://schema.org/Monday","https://schema.org/Tuesday","https://schema.org/Wednesday","https://schema.org/Thursday","https://schema.org/Friday","https://schema.org/Saturday"],"opens":"09:00","closes":"18:00"}],"paymentAccepted":["Credit Card","Credova","Sezzle"],"sameAs":["https://x.com/kygunco","https://www.facebook.com/kentuckygunco","https://www.instagram.com/kygunco","https://www.youtube.com/@thekentuckygunco","https://rumble.com/c/KYGUNCO"]},{"@id":"https://www.kygunco.com/product/yankee-hill-machine-company-yhm-9633-dx-mid-length-ext.-diamond#product","@type":"Product","description":"Free floating forearm with diamond heat vents, extended top rail, and T-marked rails. Includes mounting hardware and accepts YHM end caps.","gtin":"816701012590","mpn":"YHM-9633-DX","name":"Yankee Hill Machine Company Mid-Length Diamond Rail","sku":"115809","additionalProperty":[],"brand":{"@type":"Brand","name":"Yankee Hill Machine Company"},"image":["https://cdn.kygunco.com/assets/products/115809/thumbnail.jpg?v=1712664408"],"mainEntityOfPage":{"@id":"https://www.kygunco.com/product/yankee-hill-machine-company-yhm-9633-dx-mid-length-ext.-diamond#webpage"},"offers":{"@type":"Offer","availability":"https://schema.org/InStock","price":137.22,"priceCurrency":"USD","url":"https://www.kygunco.com/product/yankee-hill-machine-company-yhm-9633-dx-mid-length-ext.-diamond","itemCondition":"https://schema.org/NewCondition","priceValidUntil":"2027-12-30T00:00:00.000Z"},"weight":{"@type":"Mass","value":"3 lb"}},{"@id":"https://www.kygunco.com/product/yankee-hill-machine-company-yhm-9633-dx-mid-length-ext.-diamond#breadcrumb","@type":"BreadcrumbList","itemListElement":[{"@type":"ListItem","name":"Home","item":"https://www.kygunco.com","position":1},{"@type":"ListItem","name":"Shooting","item":"https://www.kygunco.com/category/shooting","position":2},{"@type":"ListItem","name":"Gun Parts","item":"https://www.kygunco.com/category/shooting/gun-parts","position":3},{"@type":"ListItem","name":"Handgun & Rifle Parts","item":"https://www.kygunco.com/category/shooting/gun-parts/handgun-and-rifle-parts","position":4},{"@type":"ListItem","name":"Rifle Parts","item":"https://www.kygunco.com/category/shooting/gun-parts/handgun-and-rifle-parts/rifle-parts","position":5},{"@type":"ListItem","name":"Rails & Handguards","item":"https://www.kygunco.com/category/shooting/gun-parts/handgun-and-rifle-parts/rifle-parts/rails-and-handguards","position":6},{"@type":"ListItem","name":"YNK-YHM-9633-DX","position":7}]},{"@id":"https://www.kygunco.com/#/schema/image/1","@type":"ImageObject","contentUrl":"https://cdn.kygunco.com/assets/backdrops/facade.jpg","inLanguage":"en","url":"https://cdn.kygunco.com/assets/backdrops/facade.jpg"}]} ``` ## Sitemap See the full [sitemap](https://www.kygunco.com/sitemap.md) for all pages.