Brownells194199634
Brownells Ar-15/M16A1 Retro Carbine 5.56Mm 11.5'' 1-7 Bbl Assembly$235.99
Availability: In Stock
Current Stock: Out of stock
Building a retro-inspired AR-15 or M16A1? The Brownells AR-15/M16A1 Retro Carbine 5.56mm 16" barrel assembly is a purpose-built component that takes the guesswork out of period-correct rifle builds. This 16-inch barrel comes complete with front-sight base, barrel extension, and all the small parts needed to install it—no hunting through catalogs for missing springs, detents, or sling swivels.
The barrel itself is machined from 4150 chrome moly steel with a chrome-lined bore, a combination that delivers durability and corrosion resistance for shooters who plan to run this rifle hard. The 1-in-7" rifling twist is suitable for a range of 5.56x45mm NATO ammunition, from lighter training rounds to heavier match loads. Finished in black phosphate and threaded ½"-28 at the muzzle, it has that classic A1-era look while remaining fully functional on the range or in the field.
What sets this assembly apart is the completeness: you get the front-sight base with post, detent, and spring already fitted, plus the Delta ring, barrel nut, weld spring, snap ring, and handguard cap. That means fewer trips to the parts bin and less assembly time when you're focused on building the rifle right. Whether you're restoring a classic or assembling a faithful retro build from the ground up, this barrel assembly is the centerpiece that ties form and function together.
| Product | AR-15/M16A1 Retro Carbine Barrel Assembly |
| Chambering | 5.56x45mm NATO |
| Barrel Length | 16" |
| Barrel Twist | 1-in-7" |
| Muzzle Thread | ½"-28 |
| Barrel Material | 4150 Chrome Moly Steel (Chrome-Lined) |
| Finish | Black Phosphate |
| Front Sight Base Diameter | .625" |
| Included Components | Barrel extension, front-sight base with post/detent/spring/sling swivel, Delta ring, barrel nut, weld spring, snap ring, handguard cap |
This barrel is chambered in 5.56x45mm NATO with a 1-in-7" twist rate, making it suitable for standard 5.56 ammunition and military-spec rounds.
Yes. The assembly comes with the barrel extension, front-sight base (with post, detent, spring, and sling swivel), Delta ring, barrel nut, weld spring, snap ring, and handguard cap. You'll still need an upper receiver and installation tools to complete the assembly.
The barrel is threaded ½"-28 at the muzzle, the standard for A1-pattern AR-15s, compatible with common flash hiders and muzzle devices designed for that thread pitch.
Yes. The 16-inch carbine length, black phosphate finish, and A1-pattern front-sight base make this barrel a solid choice for builders looking to assemble a period-correct or retro-inspired AR-15 or M16A1.
SKU: 194199658 • Weight: 2oz
Availability: In Stock
Current Stock: Out of stock
Building a retro-inspired AR-15 or M16A1? The Brownells AR-15/M16A1 Retro Carbine 5.56mm 16" barrel assembly is a purpose-built component that takes the guesswork out of period-correct rifle builds. This 16-inch barrel comes complete with front-sight base, barrel extension, and all the small parts needed to install it—no hunting through catalogs for missing springs, detents, or sling swivels.
The barrel itself is machined from 4150 chrome moly steel with a chrome-lined bore, a combination that delivers durability and corrosion resistance for shooters who plan to run this rifle hard. The 1-in-7" rifling twist is suitable for a range of 5.56x45mm NATO ammunition, from lighter training rounds to heavier match loads. Finished in black phosphate and threaded ½"-28 at the muzzle, it has that classic A1-era look while remaining fully functional on the range or in the field.
What sets this assembly apart is the completeness: you get the front-sight base with post, detent, and spring already fitted, plus the Delta ring, barrel nut, weld spring, snap ring, and handguard cap. That means fewer trips to the parts bin and less assembly time when you're focused on building the rifle right. Whether you're restoring a classic or assembling a faithful retro build from the ground up, this barrel assembly is the centerpiece that ties form and function together.
| Product | AR-15/M16A1 Retro Carbine Barrel Assembly |
| Chambering | 5.56x45mm NATO |
| Barrel Length | 16" |
| Barrel Twist | 1-in-7" |
| Muzzle Thread | ½"-28 |
| Barrel Material | 4150 Chrome Moly Steel (Chrome-Lined) |
| Finish | Black Phosphate |
| Front Sight Base Diameter | .625" |
| Included Components | Barrel extension, front-sight base with post/detent/spring/sling swivel, Delta ring, barrel nut, weld spring, snap ring, handguard cap |
This barrel is chambered in 5.56x45mm NATO with a 1-in-7" twist rate, making it suitable for standard 5.56 ammunition and military-spec rounds.
Yes. The assembly comes with the barrel extension, front-sight base (with post, detent, spring, and sling swivel), Delta ring, barrel nut, weld spring, snap ring, and handguard cap. You'll still need an upper receiver and installation tools to complete the assembly.
The barrel is threaded ½"-28 at the muzzle, the standard for A1-pattern AR-15s, compatible with common flash hiders and muzzle devices designed for that thread pitch.
Yes. The 16-inch carbine length, black phosphate finish, and A1-pattern front-sight base make this barrel a solid choice for builders looking to assemble a period-correct or retro-inspired AR-15 or M16A1.
SKU: 194199658 • Weight: 2oz