M4cqb Replacement Barrel Assembly 10.3in
$298.49 at Ammunition Depot · 5 stores
In stock
Best price
$300.00at AR15Discounts
checked Oct 1, 2026
Where to buy
| Store | Price | Availability | Buy | Add to build |
|---|---|---|---|---|
| AR15Discounts | $300.00checked Oct 1, 2026 | Check store | Buy at AR15Discounts |
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
Dashed line = out of stock. Tracking since Oct 1, 2026.
Show the prices as a table
| Store | Latest | Lowest | Highest |
|---|---|---|---|
| AR15Discounts | $300.00 | $300.00 | $300.00 |
Since Oct 1, 2026.
About this part
The FBI 5.56 11.5" Cold Hammer Forged Barrel, Carbine Gas is an 11.5" 5.56 / .223 barrel from Centurion Arms with a carbine gas system. One store lists it, AR15Discounts at $300.00.
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
- Carbine · Handguards
- Barrel length
- 11.5" · Handguards
Specifications
- Manufacturer
- Centurion Arms
- Platform
- AR-15
- Caliber
- 5.56 mm NATO
- Gas system
- Carbine
- Barrel length
- 11.5"
From the manufacturer
11.5-inch cold hammer forged, chrome-lined 5.56 barrel in Centurion's FBI (HBAR) profile with a carbine gas system and tabbed .750 gas journal.
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