M4cqb Replacement Barrel Assembly 10.3in
$298.49 at Ammunition Depot · 5 stores
In stock
Best price
$359.99at Brownells
Out of stock checked Oct 22, 2026
In stock now instead
- M4cqb Replacement Barrel Assembly 10.3in $298.49at Ammunition Depot
- AR-15 14.5" Purebred Saucepack .223 Wylde $360.00at Ammunition Depot
- Daniel Defense 5.56mm, Carbine, 1:7, GOV - 11.5" $365.00at Ammunition Depot
Where to buy
| Store | Price | Availability | Buy | Add to build |
|---|---|---|---|---|
| Brownells Best price | $359.99checked Oct 22, 2026 | Out of stock | Buy at Brownells | |
| MidwayUSA | $372.99checked 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.
AR-15 14.5" Purebred Saucepack .223 Wylde
$360.00 at Ammunition Depot · 6 stores
In stock
Daniel Defense 5.56mm, Carbine, 1:7, GOV - 11.5"
$365.00 at Ammunition Depot · 5 stores
In stock
AR-15/M16 5.56 Hammer Forged Barrels - 10.3" Government Carbine 5.56 Barrel, 1-7 Twist
$365.00 at Ammunition Depot · 7 stores
In stock
Geissele CHF 5.56mm Barrel 11.5 in Taper Chrome Lined 1/2x28 1-7 Twist Carbine Length Tapered
$365.00 at MidwayUSA · 2 stores
In stock
AR-15 18" Purebred Saucepack .223 Wylde
$365.40 at OpticsPlanet · 4 stores
In stock Sale
Price history
Lowest in-stock price in the last 30 days: $372.99 at MidwayUSA. Dashed line = out of stock. Tracking since Sep 27, 2026.
Show the prices as a table
| Store | Latest | Lowest | Highest |
|---|---|---|---|
| Brownells | $359.99 | $359.99 | $359.99 |
| MidwayUSA | $372.99 | $372.99 | $372.99 |
Since Sep 27, 2026.
About this part
The AR15/M16 16" 5.56 M4 Barrel Assembly is a 16" 5.56 / .223 barrel from Colt. It's sold by 2 stores, from $359.99 to $372.99. The lowest in-stock price in the last 30 days was $372.99 at MidwayUSA.
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
- 16" · Handguards
Specifications
- Manufacturer
- Colt
- Platform
- AR-15
- Caliber
- 5.56 mm NATO
- Barrel length
- 16"
From the manufacturer
Factory Colt 16" 5.56x45mm NATO Barrel Assembly ready for your next build. Barrel Assemblies includes front sight base, front sight tower & parts, handguard cap and barrel nut. Muzzle is threaded 1/2-28 for installation of various muzzle devices. Bore is chrome lined, for extended service life and corrosion resistance. Features 1-7 twist for superior performance with heavier bullets.
AR-15, Issue:11, Page:019
Big Book Catalog, Issue:70, Page:017
Rating
No ratings yet
Log in to rate this part.
Comments
Please log in to read and leave comments.