The Rock River Arms Coyote Carbine A4 complete upper is chambered in .300 AAC Blackout and built for reliable carbine-length performance. It uses a 16 in chrome moly steel barrel with a 1:8 twist and a forged A4 receiver. The lightweight free-float rail is M-LOK compatible to accept accessories without adding unnecessary bulk. This complete upper ships with a bolt carrier group and charging handle and is fitted with a Smith Vortex flash hider on a 5/8-24 threaded muzzle.
Key Specifications
- The upper is chambered in .300 AAC Blackout.
- The barrel measures 16 in and is made from chrome moly steel.
- The twist rate is 1:8.
- The muzzle device is a Smith Vortex flash hider (5/8-24).
- The handguard is a 12.5 in M-LOK free-float rail.
- The receiver is a forged A4 design.
- Includes a bolt carrier group and charging handle assembly.
- The finish is black anodized.
- Designed to fit AR-15 platforms.
Durable materials and proven components make this Rock River Arms Coyote Carbine A4 upper a practical, ready-to-install option for builders and enthusiasts seeking a complete .300 AAC Blackout carbine upper suitable for range use and general-purpose applications.
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