--- title: "Sig Sauer M400 Rose Gold 5.56 NATO Rifle" description: "Semi-automatic .223 Remington/5.56 NATO rifle with a 16-inch barrel, 30+1 capacity, Romeo5 Gen II optic, M-LOK handguard, and rose gold accents." canonical_url: "https://www.kygunco.com/product/sig-sauer-m400-5.56-nato-16-30rd-rose-gold-w-romeo5-gen-ii-optic" meta: author: KYGUNCO "og:description": "Semi-automatic .223 Remington/5.56 NATO rifle with a 16-inch barrel, 30+1 capacity, Romeo5 Gen II optic, M-LOK handguard, and rose gold accents." "og:image": "https://cdn.kygunco.com/assets/products/283049/thumbnail.jpg?v=1756305006" "og:image:height": "500" "og:image:width": "500" "og:title": "Sig Sauer M400 Rose Gold 5.56 NATO Rifle" --- > 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) / [Rifles](https://www.kygunco.com/category/shooting/guns/rifles) / [Semi-Auto](https://www.kygunco.com/category/shooting/guns/rifles/semi-auto) / SGS-RM400-16B-ROSE-R5X2 ![Main product image](https://static.kygunco.com/cdn-cgi/image/f=auto,w=600/assets/products/283049/main.jpg?v=1756305006) For illustration purposes only, this image may not be an exact representation of the product. # SIG SAUER M400 5.56 NATO 16" 30rd - Rose Gold w/ Romeo5 Gen II Optic The SIG SAUER M400 Rose is a semi-automatic rifle chambered in .223 Remington and 5.56 NATO, featuring a 16-inch barrel, 30+1 capacity, and matte black finish with rose gold accents. It includes a Romeo5 Gen II optic, 10-inch M-LOK handguard, ambidextrous safety, Magpul SL telescoping stock, two 30-round Magpul magazines, and a Rose Savior Bag. $1,399.99 ** 5 interest-free payments of **$280** with ![Sezzle logo](https://www.kygunco.com/brands/sezzle.svg) ** ![Credova logo](https://www.kygunco.com/brands/credova.svg) As low as **$171.52**/month with ![Credova text logo](https://www.kygunco.com/brands/credova-text.svg) ** Online In Store ** Free Shipping Enjoy delivery to the Lower 48 States at no cost. ** 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. Almost gone. Order now before it sells out. Item # 283049 Style RM400-16B-ROSE-R5X2 UPC 798681716593 Condition New Manufacturer [Sig Sauer](https://www.kygunco.com/brand/sig-sauer) Model M400 Round Capacity 30 Caliber 5.56 NATO, 223 Rem Action Semi-Auto Barrel Length 16 in The SIG SAUER M400 Rose chambered in .223 Rem / 5.56 NATO is a precision-engineered AR-15 Rifle that combines tactical performance with refined aesthetics. With a 16-inch barrel, a 30+1 capacity, and a suite of upgraded components, this AR 15 for sale is ideal for defensive use, training, and modern sporting applications. The standout matte black anodized finish is tastefully contrasted by elegant matte rose gold accents, offering a unique fusion of form and function. The SIG SAUER M400 Rose is built for performance and styled for distinction. Its lightweight construction and 16-inch barrel offer ideal balance and control, while the Magpul SL telescoping stock ensures an AR-15 Adjustable fit for any shooter. The Rose-engineered 10-inch M-LOK handguard supports seamless integration of AR-15 accessories like lights, grips, or bipods without compromising accuracy. Ambidextrous safety controls enhance usability for left- and right-handed shooters alike, and the custom rose gold compensator/flash hider minimizes recoil and flash signature for better shooting control. For rapid target acquisition and enhanced accuracy, this model includes the Rose-stylized Romeo5 Gen II optic—a red dot designed for clarity in a variety of lighting conditions. Weighing just 6.4 lbs., this AR-15 Caliber 5.56mm platform is built to be responsive and adaptable in fast-paced AR-15 Tactical scenarios. The rifle also ships with the custom Rose Savior Bag, offering secure and stylish transport. Whether you're building a high-end tactical setup or seeking the best AR-15 for home defense with flair, the M400 Rose stands out in every category. - Manufacturer: SIG SAUER - Model: M400 Rose - Caliber: .223 Rem / 5.56 NATO - Type: Semi-Auto Rifle - Action: Semi-Auto - Barrel Length: 16" - Overall Length: 36.8" - Rate of Twist: 1-in-7" - Capacity: 30 + 1 - Number of Magazines: 2 - Magazine Description: 30-Round Magpul Magazines - Stock: Magpul SL Telescoping Stock - Sights: Rose-Stylized Romeo5 Gen II (Optic Included) - Sight Type: None (Optic Only) - Weight: 6.4 lbs - Safety Features: Ambidextrous - Case: Rose Savior Bag - Additional Features: Matte Rose Gold Controls, Compensator/Flash Hider in Rose Gold, Rose-Engineered 10" M-LOK Handguard ** 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 ## 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-m400-5.56-nato-16-30rd-rose-gold-w-romeo5-gen-ii-optic#webpage","@type":"WebPage","description":"Semi-automatic .223 Remington/5.56 NATO rifle with a 16-inch barrel, 30+1 capacity, Romeo5 Gen II optic, M-LOK handguard, and rose gold accents.","name":"Sig Sauer M400 Rose Gold 5.56 NATO Rifle","url":"https://www.kygunco.com/product/sig-sauer-m400-5.56-nato-16-30rd-rose-gold-w-romeo5-gen-ii-optic","about":{"@id":"https://www.kygunco.com/product/sig-sauer-m400-5.56-nato-16-30rd-rose-gold-w-romeo5-gen-ii-optic#/schema//kygunco"},"breadcrumb":{"@id":"https://www.kygunco.com/product/sig-sauer-m400-5.56-nato-16-30rd-rose-gold-w-romeo5-gen-ii-optic#breadcrumb"},"isPartOf":{"@id":"https://www.kygunco.com/#website"},"potentialAction":[{"@type":"ReadAction","target":["https://www.kygunco.com/product/sig-sauer-m400-5.56-nato-16-30rd-rose-gold-w-romeo5-gen-ii-optic"]}]},{"@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/sig-sauer-m400-5.56-nato-16-30rd-rose-gold-w-romeo5-gen-ii-optic#product","@type":"Product","description":"Semi-automatic .223 Remington/5.56 NATO rifle with a 16-inch barrel, 30+1 capacity, Romeo5 Gen II optic, M-LOK handguard, and rose gold accents.","gtin":"798681716593","mpn":"RM400-16B-ROSE-R5X2","name":"Sig Sauer M400 Rose Gold 5.56 NATO Rifle","sku":"283049","additionalProperty":[{"@type":"PropertyValue","name":"Model","value":"M400"},{"@type":"PropertyValue","name":"Round Capacity","value":"30"},{"@type":"PropertyValue","name":"Caliber","value":"5.56 NATO, 223 Rem"},{"@type":"PropertyValue","name":"Action","value":"Semi-Auto"},{"@type":"PropertyValue","name":"Barrel Length","value":"16 in"}],"brand":{"@type":"Brand","name":"Sig Sauer"},"image":["https://cdn.kygunco.com/assets/products/283049/thumbnail.jpg?v=1756305006"],"mainEntityOfPage":{"@id":"https://www.kygunco.com/product/sig-sauer-m400-5.56-nato-16-30rd-rose-gold-w-romeo5-gen-ii-optic#webpage"},"offers":{"@type":"Offer","availability":"https://schema.org/InStock","price":1399.99,"priceCurrency":"USD","url":"https://www.kygunco.com/product/sig-sauer-m400-5.56-nato-16-30rd-rose-gold-w-romeo5-gen-ii-optic","itemCondition":"https://schema.org/NewCondition","priceValidUntil":"2027-12-30T00:00:00.000Z"}},{"@id":"https://www.kygunco.com/product/sig-sauer-m400-5.56-nato-16-30rd-rose-gold-w-romeo5-gen-ii-optic#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":"Guns","item":"https://www.kygunco.com/category/shooting/guns","position":3},{"@type":"ListItem","name":"Rifles","item":"https://www.kygunco.com/category/shooting/guns/rifles","position":4},{"@type":"ListItem","name":"Semi-Auto","item":"https://www.kygunco.com/category/shooting/guns/rifles/semi-auto","position":5},{"@type":"ListItem","name":"SGS-RM400-16B-ROSE-R5X2","position":6}]},{"@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.