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Ar-15 Modern Series Barrels 5.56mm - Ar-15 Modern Series 10.5 Carbine Barrel Gov'T
Our editorial team reviews specifications, product data, and field-use information to keep pages accurate.
$133.00
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SKU: 915000011
Overview
Built for AR-15 builders and upgraders, this 10.5-inch Government-profile barrel is aimed at compact rifle setups where a shorter barrel length and familiar contour are part of the plan. It is chambered in 5.56 NATO, so it accepts both 5.56x45mm and .223 Remington ammunition. Ballistic Advantage describes it as precision machined from 4150 chrome-moly-vanadium steel alloy, with a nickel-boron coated barrel extension and M4 feed ramps to support reliable feeding and extraction. For hunters and shooters assembling a short-barreled AR platform, it offers a straightforward option centered on compatibility and practical function.
Why Hunters Choose the Ballistic Advantage
Chambered 5.56
NATO, accepting both 5.56x45mm and
Precision Machined
From 4150 chrome-moly-vanadium steel alloy
Nickel-boron Coated
Barrel extension included
M4 Feed
Ramps are built in for
Available Multiple
Chamberings, lengths, and contours for
Key Features
- Ballistic Advantage AR-15 barrel in the Modern Series
- 10.5-inch carbine barrel with Government contour
- Chambered in 5.56 NATO for 5.56x45mm and .223 Remington ammo
- Precision machined from 4150 chrome-moly-vanadium steel alloy
- Nickel-boron coated barrel extension with M4 feed ramps
- Designed for AR-15 builds or upgrades
Best Used For
- AR-15 builders selecting a 10.5-inch 5.56 NATO barrel for a compact carbine setup
- Shooters upgrading an AR-15 with a Government-profile barrel and M4 feed ramps
- Users wanting a barrel chambered for both 5.56x45mm and .223 Remington ammunition
- Rifle builders looking for a Ballistic Advantage barrel in the Modern Series lineup
Specifications
| Barrel Extension | Nickel-boron coated |
|---|---|
| Barrel Length | 10.5 |
| Caliber | 5.56 NATO |
| Chambering | 5.56 NATO |
| Compatible Ammo | 5.56x45mm and .223 Remington |
| Contour | Carbine |
| Feed Ramps | M4 feed ramps |
| Material | 4150 chrome-moly-vanadium steel alloy |
| Profile | Government |
Pros
- Chambered in 5.56 NATO, accepting both 5.56x45mm and .223 Remington ammunition.
- Precision machined from 4150 chrome-moly-vanadium steel alloy.
- Nickel-boron coated barrel extension included.
- M4 feed ramps are built in for feeding and extraction support.
- Available in multiple chamberings, lengths, and contours for build flexibility.
Considerations & Trade-offs
- This is a 10.5-inch carbine-length barrel, so it is geared toward compact AR-15 builds rather than longer-range or general-purpose configurations.
- The Government contour reflects a specific profile choice, which may not suit builders looking for a lighter or differently balanced barrel shape.
- It is chambered in 5.56 NATO, so it is intended for 5.56x45mm and .223 Remington ammunition rather than other chamberings.
- The description does not include a complete specification set for the barrel, so buyers may need to verify fitment details against their build requirements before purchase.
Suggested Comparisons
- AR-15 replacement barrels
- 5.56 NATO chambered barrels
- Government profile barrels
- AR-15 upper receiver components
Suggested Accessories
- AR-15 upper receiver assembly
- Muzzle device
- Barrel nut wrench
- Cleaning kit
Frequently Asked Questions
What chambering is this barrel made for?
This barrel is chambered in 5.56 NATO, and the description says it accepts both 5.56x45mm and .223 Remington ammunition.
What barrel profile is listed for this model?
The product title identifies it as a Government contour barrel in the AR-15 Modern Series.
What material is the barrel made from?
The long description states that Ballistic Advantage precision machines these barrels from 4150 chrome-moly-vanadium steel alloy.
Does this barrel include M4 feed ramps?
Yes. The description says it has a nickel-boron coated barrel extension with M4 feed ramps.
Is this barrel intended for a specific type of AR-15 build?
The description says Ballistic Advantage offers these barrels in different chamberings, lengths, and contours so builders can find the barrel needed for a rifle build or upgrade. This specific model is the 10.5-inch Government contour version listed in the title.