Brownells Brn16A1 20'' Upper Receiver Rifle Length 1-12 Twist 1/2-28 5.56 NATO

The Brownells BRN16A1� 20'' Complete Upper Receiver delivers a ready-to-fire rifle-length solution built around a lightweight, Black finish upper with a 1-12 twist and a 20-inch profile designed for serious performance in 5.56x45mm NATO configurations, featuring a 1/2-28 muzzle threading for versatile muzzle devices. This complete upper is designed to provide a reliable platform for traditional rifle caliber engagements and target shooting, offering a smooth blend of balance and rigidity that supports steady accuracy at extended ranges while maintaining manageable weight. The combination of the 20-inch length and rifle-length gas system contributes to a predictable recoil impulse and improved ballistic performance, making it suitable for precision-oriented field use or long-range practice. With a clean, black aesthetic and a complete upper assembly, it integrates seamlessly with compatible AR-style receivers to deliver a cohesive, turnkey upgrade that supports fast, repeatable shot placement. Ideal for enthusiasts seeking a factory-style BRN16A1 experience, this upper delivers dependable fit, finish, and function for crafting a dependable rifle that performs across a variety of shooting disciplines.