Restrictions

Top takeaways

  1. PROOF Research barrels are made from double stress-relieved 416R stainless steel, providing consistency and durability required for precision shooting.
  2. The barrels undergo a meticulous manufacturing process including drilling, contouring, reaming, rifling, lapping, and individual bore scope inspection.
  3. These barrels are designed for the .223 Wylde cartridge, with a 16'' length and 1-8 twist rate, but do not come with a gas block, gas tube, or bolt (except for the 300BLK variant).

Attributes

Cartridge: 223 Wylde Finish: Stainless Steel Gas System Length: Mid-Length Length: 16'' Make: AR-15 Muzzle Threads: 1/2-28 Twist: 1-8 Delivery weight: 1.361kg

Item details

Made in USA
US export classification: 0A501.c