Rock River Arms Upper Receiver A4 .223 Wylde 16 Inch Barrel Varmint Profile 1-8 Twist Free-Float Handguard Black
4 options
- 16", this page
- 18"out of stock
- 20"out of stock
- 24"out of stock
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Rock River Arms
Overview
The Rock River Arms Upper Receiver A4 features a complete assembly with a 16-inch barrel chambered in .223 Wylde, allowing for versatility in shooting both .223 Remington and 5.56 NATO ammunition. The 1:8 twist rate enhances the stability and accuracy of a wide range of bullet weights, making it suitable for various applications, from target shooting to varmint hunting. This upper is commonly found in AR-15 builds designed for precision and versatility in performance.
Specifications
Rock River Arms Upper Receiver A4 .223 Wylde 16 Inch Barrel Varmint Profile 1-8 Twist Free-Float Handguard Black
4 options
- 16", this page
- 18"out of stock
- 20"out of stock
- 24"out of stock
Price and stock
The Rock River Arms Upper Receiver A4 .223 Wylde 16 Inch Barrel Varmint Profile 1-8 Twist Free-Float Handguard Black was out of stock everywhere we track for all of August 2026, and today the one retailer we track is out of stock. Listed prices start at $609.99 at Optics Planet for when it comes back.
Prices checked · refreshed daily across 35 retailers
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