M4cqb Replacement Barrel Assembly 10.3in
$298.49 at Ammunition Depot · 5 stores
In stock
Best price
$337.99at Brownells
Out of stock checked Oct 22, 2026
In stock now instead
- M4cqb Replacement Barrel Assembly 10.3in $298.49at Ammunition Depot
- V Seven AR-15 5.56 Stainless Match Barrel Medium Contour 8.5in … $342.41at OpticsPlanet
- Criterion Barrels Service Rifle DCM TARget Crown Barrel AR-15 .… $332.49at MidwayUSA
Where to buy
| Store | Price | Availability | Buy | Add to build |
|---|---|---|---|---|
| Brownells Best price | $337.99checked Oct 22, 2026 | Out of stock | Buy at Brownells | |
| MidwayUSA | $392.99checked Oct 22, 2026 | Out of stock | Buy at MidwayUSA |
Prices and availability change often, so confirm on the store's site before you buy. We may earn a commission from these links.
Similar barrels in stock
This part is out of stock at every store we track. These similar barrels are in stock, with today's prices.
V Seven AR-15 5.56 Stainless Match Barrel Medium Contour 8.5in 556M7T 8.5
$342.41 at OpticsPlanet
In stock Sale
Criterion Barrels Service Rifle DCM TARget Crown Barrel AR-15 .223 Rem Match 20in Heavy Service Rifle Rifle 1-7 Twist Polished
$332.49 at MidwayUSA · 2 stores
In stock
Core .223wylde 13.9" 1-8 Tapered Mid-Length Chrome-Line Thrd
$329.99 at Brownells · 3 stores
In stock
AR-15/M16 5.56 Hammer Forged Barrels - 14.5" Mid-Length 5.56 Gov'T Barrel, 1-7 Twist
$348.00 at Kentucky Gun Co · 7 stores
In stock
Daniel Defense .223 Rem/5.56 16" Stripped Mid-Length Barrel, Black Phosphate
$348.00 at Kentucky Gun Co · 2 stores
In stock
Price history
Dashed line = out of stock. Tracking since Sep 27, 2026.
Show the prices as a table
| Store | Latest | Lowest | Highest |
|---|---|---|---|
| Brownells | $337.99 | $337.99 | $337.99 |
| MidwayUSA | $392.99 | $392.99 | $392.99 |
Since Sep 27, 2026.
About this part
The Barrel 5.56mm NATO 11.5" 1-7 Black is an 11.5" 5.56 / .223 barrel from Colt. It's sold by 2 stores, from $337.99 to $392.99.
Fits and works with
- Caliber
- 5.56 / .223 · Shop matching ammo
- Bolt
- Standard AR-15 (5.56 / 300 BLK / .350 Legend) · Bolt carrier groups
- Barrel length
- 11.5" · Handguards
Specifications
- Manufacturer
- Colt
- Color
- Black
- Platform
- AR-15
- Caliber
- 5.56 mm NATO
- Barrel length
- 11.5"
From the manufacturer
Genuine Colt Quality - Ready for Your Next AR-15 Pistol / SBR Build
This genuine Colt 11.5" Government Profile Barrel epitomizes modern warfare’s need for speed, light weight, and mobility - AND it’s ready to install on your next AR-15 pistol or SBR. Also known as the Commando Barrel, it’s forged from ordnance-grade carbon steel, with a chrome-lined bore and chamber, plus a traditional matte black Parkerized finish.
The Colt 11.5" Government Profile Barrel comes with the barrel extension, M4-type (round) front handguard cap, and front sight tower/gas block ALL installed. The gas port is drilled for a carbine-length gas tube - giving you an extra measure of reliability in a pistol build.
- 1-7" rifling twist
- 1/2"-28 tpi muzzle threads
- Front sight tower/gas block has bayonet lug
- Front sight post IS included
- Carbine-length gas tube not included
- OAL of entire assembly: 12-1/8"
- All NFA rules apply
Built with compatibility in mind, Colt’s 11.5" Government Profile Barrel fits any standard "mil-spec" AR-15 / M16 / M4 upper receiver, and it’s chambered for 5.56x45mm NATO, so it will also safely fire civilian .223 Remington ammo as well.
Colt was the first supplier of AR-15 / M16 rifles to U.S. military. Nobody has more experience with the AR platform! Why build your next AR-15 with anything less a Colt barrel?
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