The Daniel Defense M4A1 RIII 5.56mm NATO Black Upper Receiver Group 23-004-01097-006 is designed for high-performance shooting and versatility. This upper receiver group features a 14.5-inch cold hammer-forged barrel with a 1:7 twist rate, ensuring optimal accuracy. The RIS III handguard offers a streamlined profile with full M-LOK compatibility for accessory mounting. The carbine-length gas system and pinned low-profile gas block provide reliable operation. Ideal for tactical shooters and enthusiasts, this upper receiver group delivers exceptional performance and adaptability.