Brn16a1(R) 20'''' Complete Upper Receivers - Brn M16A1 Upper Receiver 20'''' Rifle Length, 1-7 Twist, Black
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Overview
The Brownells BRN16A1(R) complete upper receiver is designed for AR-15 builds, featuring a 20-inch barrel with a 1:7 twist rate that stabilizes a wide range of bullet weights, making it suitable for various shooting applications. Finished in black, this upper assembly provides a classic aesthetic while ensuring compatibility with standard AR-15 lower receivers. This upper is often found in retro builds aiming to replicate the M16A1 configuration, appealing to enthusiasts of vintage military firearms.
Specifications
Brn16a1(R) 20'''' Complete Upper Receivers - Brn M16A1 Upper Receiver 20'''' Rifle Length, 1-7 Twist, Black
Available Merchants(1)
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Stock Alert
Price and stock
The Brownells Brn16a1(R) 20'''' Complete Upper Receivers - Brn M16A1 Upper Receiver 20'''' Rifle Length, 1-7 Twist, Black was out of stock everywhere we track for all of September 2026, and today the one retailer we track is out of stock. Listed prices start at $679.99 at Brownells for when it comes back.
Prices checked · refreshed daily across 37 retailers
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