Restrictions

Top takeaways

  1. PROOF Research stainless steel barrels are made with double stress-relieved 416R stainless steel for precision and quality.
  2. The barrels undergo a rigorous process including drilling, contouring, reaming, rifling, and lapping, followed by individual bore scope inspection.
  3. These barrels are designed for the AR-15 with a 300 AAC Blackout cartridge, 16'' length, 1-8 twist rate, and do not come with a gas block, gas tube, or bolt (except for the 300BLK model).

Attributes

Cartridge: 300 AAC Blackout Finish: Stainless Steel Gas System Length: Carbine Length: 16'' Make: AR-15 Muzzle Threads: 5/8-24 Twist: 1-8 Delivery weight: 0.98kg

Item details

Made in USA
US export classification: 0A501.c