--- title: "Trijicon ACOG 4x32 Red Chevron USMC RCO" description: "4x32 ACOG optic with dual illumination and red chevron reticle. Designed for the M16A4 weapon system and uses a bullet drop compensator." canonical_url: "https://www.kygunco.com/product/trijicon-ta31rco-a4cp-acog-4x32-usmc-rifle-combat-o" meta: author: KYGUNCO "og:description": "4x32 ACOG optic with dual illumination and red chevron reticle. Designed for the M16A4 weapon system and uses a bullet drop compensator." "og:image": "https://cdn.kygunco.com/assets/products/109333/thumbnail.jpg?v=1713453276" "og:image:height": "500" "og:image:width": "500" "og:title": "Trijicon ACOG 4x32 Red Chevron USMC RCO" --- > Index of every page on this site: [llms.txt](https://www.kygunco.com/llms.txt) [Home](https://www.kygunco.com/) / [Optics](https://www.kygunco.com/category/optics) / [Scopes](https://www.kygunco.com/category/optics/scopes) / [Rifle Scopes](https://www.kygunco.com/category/optics/scopes/rifle-scopes) / TRJ-100226 ![Main product image](https://static.kygunco.com/cdn-cgi/image/f=auto,w=600/assets/products/109333/main.jpg?v=1713453276) For illustration purposes only, this image may not be an exact representation of the product. # TRIJICON ACOG 4x32 Dual Illum Red Chevron USMC (RCO) Trijicon ACOG TA31RCO 4x32 optic designed for the M16A4 weapon system with a 20" barrel. It uses dual illumination with fiber optics and tritium for always-on reticle visibility without batteries, and a red chevron reticle with a bullet drop compensator for target engagement out to 800 meters. $1,391.09 ** 5 interest-free payments of **$278.22** with ![Sezzle logo](https://www.kygunco.com/brands/sezzle.svg) ** ![Credova logo](https://www.kygunco.com/brands/credova.svg) As low as **$170.43**/month with ![Credova text logo](https://www.kygunco.com/brands/credova-text.svg) ** Online In Store ** Flat Rate $13.94 for every 25 lbs. Shipping to HI & AK may incur additional fees. ** Ships To Your Home Handled by our expert shippers in Bardstown, KY. ** Partner Fulfilled Selling fast. Limited quantities available. Item # 109333 Style TRJ-100226 UPC 719307302068 Condition New Manufacturer [Trijicon](https://www.kygunco.com/brand/trijicon) Weight 1 lb The TA31RCO is an Advanced Combat Optical Gun sight (ACOG) designed for the M16A4 Weapon system (20” barrel). It incorporates dual illumination technology using a combination of fiber optics and self- luminous tritium. This allows the aiming point to always be illuminated without the use of batteries. The Tritium illuminates the aiming point in total darkness, and the fiber optic self-adjusts reticle brightness during daylight according to ambient light conditions. This allows the operator to keep both eyes open while engaging targets and maintaining maximum situational awareness. Designed to the exact specifications of the United States Marine Corps, the unique reticle pattern provides quick target acquisition at close combat ranges while providing enhanced target identification and hit probability out to 800 meters utilizing the Bullet Drop Compensator. ** 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 Trijicon ```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/trijicon-ta31rco-a4cp-acog-4x32-usmc-rifle-combat-o#webpage","@type":"WebPage","description":"4x32 ACOG optic with dual illumination and red chevron reticle. Designed for the M16A4 weapon system and uses a bullet drop compensator.","name":"Trijicon ACOG 4x32 Red Chevron USMC RCO","url":"https://www.kygunco.com/product/trijicon-ta31rco-a4cp-acog-4x32-usmc-rifle-combat-o","about":{"@id":"https://www.kygunco.com/product/trijicon-ta31rco-a4cp-acog-4x32-usmc-rifle-combat-o#/schema//kygunco"},"breadcrumb":{"@id":"https://www.kygunco.com/product/trijicon-ta31rco-a4cp-acog-4x32-usmc-rifle-combat-o#breadcrumb"},"isPartOf":{"@id":"https://www.kygunco.com/#website"},"potentialAction":[{"@type":"ReadAction","target":["https://www.kygunco.com/product/trijicon-ta31rco-a4cp-acog-4x32-usmc-rifle-combat-o"]}]},{"@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/trijicon-ta31rco-a4cp-acog-4x32-usmc-rifle-combat-o#product","@type":"Product","description":"4x32 ACOG optic with dual illumination and red chevron reticle. Designed for the M16A4 weapon system and uses a bullet drop compensator.","gtin":"719307302068","mpn":"100226","name":"Trijicon ACOG 4x32 Red Chevron USMC RCO","sku":"109333","additionalProperty":[],"brand":{"@type":"Brand","name":"Trijicon"},"image":["https://cdn.kygunco.com/assets/products/109333/thumbnail.jpg?v=1713453276"],"mainEntityOfPage":{"@id":"https://www.kygunco.com/product/trijicon-ta31rco-a4cp-acog-4x32-usmc-rifle-combat-o#webpage"},"offers":{"@type":"Offer","availability":"https://schema.org/InStock","price":1391.09,"priceCurrency":"USD","url":"https://www.kygunco.com/product/trijicon-ta31rco-a4cp-acog-4x32-usmc-rifle-combat-o","itemCondition":"https://schema.org/NewCondition","priceValidUntil":"2027-12-30T00:00:00.000Z"},"weight":{"@type":"Mass","value":"1 lb"}},{"@id":"https://www.kygunco.com/product/trijicon-ta31rco-a4cp-acog-4x32-usmc-rifle-combat-o#breadcrumb","@type":"BreadcrumbList","itemListElement":[{"@type":"ListItem","name":"Home","item":"https://www.kygunco.com","position":1},{"@type":"ListItem","name":"Optics","item":"https://www.kygunco.com/category/optics","position":2},{"@type":"ListItem","name":"Scopes","item":"https://www.kygunco.com/category/optics/scopes","position":3},{"@type":"ListItem","name":"Rifle Scopes","item":"https://www.kygunco.com/category/optics/scopes/rifle-scopes","position":4},{"@type":"ListItem","name":"TRJ-100226","position":5}]},{"@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.