Brownells BRN AR-15/M16A1 Retro Carbine 5.56mm 12.7" 1-7 Barrel Assembly Black Phosphate

Description

Product Overview

Brownells Retro A1 12.7 in carbine-length barrel assembly for AR-15/M16A1-style builds, chambered in 5.56x45mm NATO with a chrome-lined bore for durability. This 1-7 in twist barrel is finished in black phosphate and comes pre-assembled with the front-sight base and A1-style installation components, making it a direct fit for a Retro A1 carbine build.

Key Features

• Chrome-lined 5.56x45mm NATO barrel for reliable service life
• 12.7 in carbine-length barrel with 1-7 in twist for versatile 5.56 loads
• Black phosphate finish for corrosion resistance
• 1/2-28 muzzle threads for compatible muzzle devices
• Factory includes the front-sight base and common A1 build components installed for faster assembly

Build your next Retro A1 carbine with a chrome-lined 12.7 in assembly built for correct AR-15/M16A1 retro-style configuration.