New Frontier Ar15 Barrel - 10.5" 1:8 .300aac Blk

The New Frontier AR15 Barrel - 10.5" 1:8 .300 AAC Blackout is purpose-built for operators and precision shooters who demand compact firepower without sacrificing ballistic performance. This short-stroke barrel excels in close-quarters combat, tactical home defense, and specialized suppressed rifle applications where subsonic ammunition maximizes sound signature reduction. The .300 AAC Blackout cartridge has become the standard for suppressed operations across law enforcement and military communities, and this New Frontier Armory offering delivers the precision chamber and bore geometry required for consistent accuracy downrange.

Machined from quality steel and finished to exacting tolerances, this 10.5-inch barrel features a 1:8 twist rate optimized for .300 Blackout's range of bullet weights—from 110-grain supersonic loads to 220-grain subsonic rounds. The 1:8 twist provides stable flight across the entire cartridge spectrum, critical for mission-critical accuracy. Weighing just 1.37 pounds, the barrel's compact length reduces overall rifle package weight and profile while maintaining the velocity and energy needed for effective terminal performance. New Frontier Armory's attention to chamber specifications ensures reliable feeding and extraction, even under sustained fire or adverse conditions commonly encountered in tactical environments.

This barrel integrates seamlessly into any AR-15 platform using standard .308 bolt face and barrel nut installation procedures, making it ideal for builders and armorer-level end-users familiar with rifle assembly. Suppressor-ready threads accommodate common .300 Blackout suppressors, amplifying the subsonic advantage in noise reduction. Law enforcement tactical teams, military special operations, and civilian precision shooters focused on subsonic rifle builds will recognize this barrel's value in short-barreled rifle (SBR) builds where terminal ballistics and hearing-safe performance are non-negotiable.