Alexander Arms R300ST Standard .300 Blackout Black Rifle

Description

Product Overview

The Alexander Arms R300ST Standard is a .300 Blackout semi-automatic rifle built on the AR-15 platform. Its 16-inch barrel features a 1:8 twist rate and 5/8x24 muzzle threading, allowing compatible muzzle devices or suppressor mounts to be installed. The direct-impingement action, M4 synthetic stock, and A2 pistol grip provide a familiar configuration for range use, training, and recreational shooting. An included thread protector helps protect the muzzle threads when no muzzle device is installed, and the rifle ships with one 30-round magazine.

Key Features

• 16-inch .300 Blackout barrel with a 1:8 twist rate for stabilizing a broad range of commonly used bullet weights
• 5/8x24 threaded muzzle with included thread protector for compatible muzzle devices
• Direct-impingement semi-automatic AR-15 operating system
• M4 synthetic stock and A2 pistol grip provide a familiar, practical setup
• Optic-ready top rail allows the addition of a preferred red dot sight or scope
• Includes one 30-round magazine

The Alexander Arms R300ST provides a practical .300 Blackout AR-15 configuration with a threaded 16-inch barrel and adaptable optic mounting.