Product Description The Faxon Firearms Duty Series Upper Receiver Group is a purpose-built, semi-automatic upper assembly chambered in 5.56mm NATO and fitted with a 16-inch barrel. Designed for reliability and performance, the Duty Series Upper Receiver Group reflects Faxon Firearms&'; commitment to precision manufacturing and quality components. Whether used for home defense, range training, or duty applications, this upper delivers consistent, dependable performance in a battle-ready configuration. The suppressor-ready designation makes it a versatile choice for shooters looking to expand their platform&';s capability with sound suppression accessories. Product Highlights Duty-Grade Construction: Built to Faxon Firearms&'; exacting standards for reliability and longevity under demanding conditions. 5.56mm NATO Chambering: Compatible with both 5.56mm NATO and .223 Remington ammunition for versatile use. 16-Inch Barrel: Offers an optimal balance of velocity, accuracy, and maneuverability for a wide range of applications. Suppressor Ready (SR) Configuration: Engineered to accept suppressor accessories, expanding the platform&';s tactical versatility. Drop-In Upper Receiver Group: Designed for straightforward installation onto any standard AR-15 lower receiver. Specs Brand: Faxon Firearms Series: Duty Caliber: 5.56mm NATO Barrel Length: 16 inches Configuration: Suppressor Ready (SR) Action Type: Semi-Automatic Product Type: Upper Receiver Group MPN: FXURGD55616SA13CSR UPC: 810209950675 Disclaimer: We strive to provide accurate and up-to-date product descriptions, specifications, and images; however, errors or omissions may occasionally occur. We are not responsible for any inaccuracies or discrepancies in the content provided. If you notice anything incorrect or unclear, please contact us so we can correct it. When in doubt, we recommend verifying details directly with the product&';s manufacturer. ]]>