The Rock River Arms A4 Coyote Carbine Upper is a fine example of precision engineering meeting practical application. Chambered in the versatile .300 AAC Blackout, this upper assembly offers adaptability and power suitable for various shooting scenarios. At its core lies a 16-inch chrome moly barrel with a 1:8 twist rate, ensuring optimal stability and accuracy across diverse bullet weights.
Further enhancing its capability is the RRA 12.5-inch M-Lok compatible lightweight free float rail. This feature allows shooters to easily attach accessories while maintaining balance and reducing overall weight—an essential consideration for those who value mobility without sacrificing performance.
A Smith Vortex flash hider adorns the muzzle with a standard 5/8-24 thread, effectively minimizing muzzle flash to preserve night vision during low-light operations or tactical exercises.
This complete upper includes both a bolt carrier group and charging handle assembly, ready to seamlessly integrate into your existing lower receiver setup. Whether you're an enthusiast seeking reliability on the range or preparing for field use, this offering from Rock River Arms stands as a testament to quality craftsmanship paired with functional design.