Duty Series AR-15 .300 Blackout Threaded Barrel

Optimized Geometry. Superior Metallurgy. Suppressor-Ready.

Upgrade your AR-15 with a barrel engineered for versatility and performance. The new .300 AAC Blackout Balance Profile Barrel from TRYBE Defense features a proprietary hybrid contour and merges the thermal mass and harmonics of a standard government profile with the reduced forward weight of a pencil contour, striking a balance between rigidity and maneuverability ideal for suppressed platforms, SBRs, and versatile hunting rifles.

This .300 AAC Blackout barrel is engineered for reliability and ballistic efficiency across both subsonic and supersonic loads. Constructed from 4150 CMV, the new Balance Profile barrel meets MIL-B-11595E standards for strength and heat resistance. The QPQ black nitride finish diffuses nitrogen into the steel substrate, providing exceptional surface hardness (~60 HRC), wear resistance, and corrosion protection superior to chrome lined barrels. Increased mass near the chamber and gas port area improves heat resistance during high cyclic rates, delaying heat-induced POI shift.

This barrel is not just an upgrade — it's a performance enhancer. Whether you're tuning a precision subsonic system or outfitting a rugged suppressed SBR, the TRYBE Defense Balance Profile AR-15 Rifle Barrel in .300 AAC Blackout delivers high-end performance, material quality, and barrel life you can rely on time and time again.

• Balance Profile – Hybrid Government/Pencil Blend for Optimal Weight and Heat Management
• Tighter Tolerances and Higher-Quality Materials Improve Shot Consistency and Group size
• The Balance Profile Manages Barrel Temperature During Rapid Fire, Reducing Point-of-Impact Shift, Extending Barrel Life
• Constructed from 4150 CMV Steel, Built for Heavy Use
• QPQ Nitride Finish Penetrates the Steel Surface, Offering Superior Corrosion Resistance Compared to Chrome Lining or Phosphate Coatings
• Ready to Accept Your Favorite 5/8x24 Muzzle Device
• Ideal for Suppressors
• Maintains Harmonics Under Backpressure
• Minimal Shift in POI with Subsonic or Suppressed Configurations
• Button-Rifled for Increased Accuracy and Guaranteed Consistency of Bore and Groove Dimensions
• Magnetic Particle Inspected
• 11° Target Crown
• Precision Machined in the USA
• M4 Feed Ramps for Reliable Cycling
• SAAMI-Spec .300 AAC Blackout Chamber

WARNING: California`s Proposition 65

This product can expose you to chemicals which are known to the State of California to cause cancer and birth defects or other reproductive harm. For more information go to www.P65Warnings.ca.gov.