Button Rifled AR-15 M16 Barrel 10.5 Carbine 5.56mm
$241.50 at Kentucky Gun Co · 8 stores
In stock
Best price
$241.50at Kentucky Gun Co
In stock checked Oct 22, 2026
Where to buy
| Store | Price | Availability | Buy | Add to build |
|---|---|---|---|---|
| Kentucky Gun Co Best price | $241.50checked Oct 22, 2026 | In stock | Buy at Kentucky Gun Co | |
| MidwayUSA | $279.99checked Oct 22, 2026 | In stock | Buy at MidwayUSA | |
| Battlehawk Armory | $252.00Salechecked Oct 22, 2026 | Check store | Buy at Battlehawk Armory | |
| Palmetto State Armory | $279.99Salechecked Oct 15, 2026 | Check store | Buy at Palmetto State Armory | |
| GunMag Warehouse | $238.99checked Oct 4, 2026 | Out of stock | Buy at GunMag Warehouse | |
| Brownells | $279.00checked Oct 22, 2026 | Out of stock | Buy at Brownells | |
| OpticsPlanet | $279.00Salechecked Sep 30, 2026 | Out of stock | Buy at OpticsPlanet | |
| Ammunition Depot | $279.00checked Oct 4, 2026 | Out of stock | Buy at Ammunition Depot |
Prices and availability change often, so confirm on the store's site before you buy. We may earn a commission from these links.
Price history
Lowest in-stock price in the last 30 days: $236.67 at Kentucky Gun Co. Dashed line = out of stock. Tracking since Sep 28, 2026.
Show the prices as a table
| Store | Latest | Lowest | Highest |
|---|---|---|---|
| Ammunition Depot | — | $279.00 | $279.00 |
| Battlehawk Armory | $252.00 | $246.96 | $252.00 |
| Brownells | $279.00 | $279.00 | $279.00 |
| GunMag Warehouse | — | $238.99 | $238.99 |
| Kentucky Gun Co | $241.50 | $236.67 | $241.50 |
| MidwayUSA | $279.99 | $279.00 | $279.99 |
| OpticsPlanet | — | $279.00 | $279.00 |
| Palmetto State Armory | — | $279.99 | $279.99 |
Since Sep 28, 2026.
About this part
The Button AR-15 M16 Barrel 18 Rifle Length 5.56mm is a 5.56 / .223 barrel from FN America with a rifle gas system. It's sold by 8 stores (2 in stock), from $238.99 to $279.99. The lowest in-stock price in the last 30 days was $236.67 at Kentucky Gun Co.
Fits and works with
- Caliber
- 5.56 / .223 · Shop matching ammo
- Bolt
- Standard AR-15 (5.56 / 300 BLK / .350 Legend) · Bolt carrier groups
- Gas system
- Rifle · Handguards
Specifications
- Manufacturer
- FN America
- Platform
- AR-15
- Caliber
- 5.56 mm NATO
- Gas system
- Rifle
From the manufacturer
The United States military has trusted FN America to produce the guns used by our troops in combat zones across the world, and now, you can pick up the same U.S.-made M16 barrels used by our troops for your own AR-15. Each FN AR-15 BB M16 barrel is machined from chrome-moly vanadium steel sourced right here in the United States. After button-rifling, each FN AR-15 BB M16 barrel gets a chrome-lined bore and chamber that prevents corrosion and also minimizes heat erosion. This helps to extend the life of your rifle, as well as enhance reliability. After chrome-lining, each barrel is high-pressure tested and MPI-inspected to ensure it meets all military standards. Outside, the barrels a Mfg: Fn America
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