The Shaw AR15HBSS186ARC AR-15 6 ARC 18in Threaded Barrel delivers a precise, heavy-barrel upgrade for shooters who want consistent accuracy from their AR-15 platform. Built from 416R stainless steel with a matte finish and HBAR profile, this 18-inch barrel features 5/8-24 muzzle threads and a 1:7.5 twist rate optimized for modern 6mm ARC loads.

This barrel is ideal for precision-focused range work, recreational shooting, and building a capable AR-15 upper around the efficient 6mm ARC cartridge. The rifle-length gas system and .750 gas block journal support smooth operation and reliability, while the stainless construction offers durability and corrosion resistance. Shaw’s long-standing reputation for quality barrels and careful craftsmanship makes this a solid choice for your next AR build.

Key Features:

• Manufacturer: Shaw
• Model: AR15HBSS186ARC
• Caliber: 6mm ARC
• Barrel Length: 18 in
• Barrel Profile: HBAR
• Barrel Material: 416R Stainless Steel
• Finish Color: Matte Stainless
• Gas System Length: Rifle Length
• Gas Block Journal Size: 0.750 in
• Firearm Compatibility: AR-15
• Threaded Barrel: 5/8-24
• Condition: New