Restrictions

Top takeaways

  1. The Brownells Retro A1 12.7" carbine barrel assembly is designed for AR-15 rifles, chambered in 5.56x45mm NATO, and offers a choice of 1-7" or 1-12" twist rates.
  2. It features a chrome-lined barrel finished in black phosphate, with a 12.7” length, ½"-28 muzzle threads, and comes with a pre-installed front-sight base and other components.
  3. The barrel is machined from 4150 chrome moly steel, ensuring durability and reliability for Retro Rifle builds.

Attributes

Cartridge: 5.56 mm NATO Finish: Black Gas System Length: Carbine Length: 12.7'' Make: AR-15 Muzzle Threads: 1/2-28 Twist: 1-12 Delivery weight: 0.771kg

Item details

Made in USA
US export classification: 0A501.c