Rock River Arms Completed Upper Receiver National Match A4 Half Trainer .22 Long Rifle 20 Inch Barrel 1-16 Twist 1/2-28 Thread Free-Float Handguard A2

Rock River Arms

Overview

The Rock River Arms Completed Upper Receiver National Match A4 Half Trainer is designed for precision shooting with a 20-inch barrel chambered in .22 LR, making it ideal for training or competition. Its A4 receiver type and 1:16 twist rate enhance accuracy, while the 1/2x28 thread pitch allows for easy attachment of muzzle devices. This upper receiver is often utilized in builds focused on marksmanship training, providing a lightweight and reliable option for shooters looking to hone their skills with a rimfire platform.