--- title: "SIG SAUER M400 ECP Flat Dark Earth Stock" canonical_url: "https://www.kygunco.com/product/sig-sauer-m400-ecp-flat-dark-earth-stock" meta: author: KYGUNCO "og:image": "https://cdn.kygunco.com/assets/products/130723/thumbnail.jpg?v=1726769499" "og:image:height": "500" "og:image:width": "500" "og:title": "SIG SAUER M400 ECP Flat Dark Earth Stock" --- > 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-ECP-R5-FDE-NBS ![Main product image](https://static.kygunco.com/cdn-cgi/image/f=auto,w=600/assets/products/130723/main.jpg?v=1726769499) For illustration purposes only, this image may not be an exact representation of the product. # SIG SAUER M400 ECP Flat Dark Earth Stock $831.99 ** 5 interest-free payments of **$166.40** with ![Sezzle logo](https://www.kygunco.com/brands/sezzle.svg) ** ![Credova logo](https://www.kygunco.com/brands/credova.svg) As low as **$148.53**/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. Item # 130723 Style RM400-16B-ECP-R5-FDE-NBS UPC 798681574261 Condition New Manufacturer [Sig Sauer](https://www.kygunco.com/brand/sig-sauer) Model M400 Caliber 5.56 NATO, 223 Rem Action Semi-Auto - MODEL:M400 Enhanced Carbine Patrol - TYPE:Rifle - ACTION:Semi-Auto - FINISH:Black - STOCK/FRAME:Collapsible / Folding Stock - STOCK/GRIPS:Magpul MOE Flat Dark Earth SPC - FEATURE:Threaded Barrel Model - WEIGHT:6.7 lbs. - CALIBER/GAUGE:223 Rem | 5.56 NATO - CAPACITY:30+1 - \# OF MAGS:1 MAGAZINE - DESC:30 rd. - BARREL:16" - OVERALL LENGTH:35.6" - RATE-OF-TWIST:1-in-7 - RECEIVER:Black - SIGHTS:None - ADDL INFO:Direct Impingement - ADDL INFO:Flat Dark Earth Magpul Parts - ADDL INFO:Incl: Romeo 5 Red Dot ** 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-ecp-flat-dark-earth-stock#webpage","@type":"WebPage","description":"Shop KYGUNCO for firearms, ammo, accessories, parts, and outdoor gear at low prices with fast, easy nationwide shipping.","name":"SIG SAUER M400 ECP Flat Dark Earth 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