Alexander Arms R300ST Standard 300 Blackout 30+1 16" Barrel, Black Anodized Receiver, Black Adaptive Tactical EFX Stock, Black Polymer Grip, Optics Ready

The Alexander Arms R300ST Standard 300 Blackout rifle delivers proven performance for operators and serious shooters who demand subsonic capability in a modern platform. Chambered in 300 Blackout with a 16-inch barrel, this purpose-built rifle excels in suppressed shooting, dynamic entries, and precision rifle training where hearing-safe ammunition is essential. The 1:7-inch twist rate stabilizes both supersonic and subsonic projectiles, making the R300ST exceptionally versatile across ammunition types.

Core specifications reflect field-tested design priorities. The 16-inch barrel paired with an A2 flash hider provides effective muzzle control and concealable overall length without sacrificing dwell time stability. Black anodized receiver construction resists corrosion during extended use, while the M-Lok handguard enables rapid accessory mounting for optics, lights, and vertical grips without rail clutter. The Adaptive Tactical EFX stock and polymer grip provide reliable ergonomics across varied shooting positions and weather conditions. Optics-ready configuration allows immediate integration of red-dot or magnified sights. Total weight of 8.6 pounds balances maneuverability with sufficient mass for 300 Blackout recoil management.

This configuration serves law enforcement tactical teams, military special operations support elements, and civilian precision rifle competitors who prioritize suppressed fire capability. The 300 Blackout cartridge addresses a specific operational requirement: subsonic velocity with heavier projectiles (220+ grains) enables sound-suppressed shots suitable for night operations, training environments, and ranges with noise restrictions. Builders and operators upgrading from standard intermediate cartridges find 300 Blackout's ballistics and proven reliability particularly valuable for dedicated precision roles where the caliber's inherent advantages justify platform specialization.