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Ar-15 Modern Series Barrels 5.56mm - Ar-15 Modern Series 16 Mid-Length Barrel Gov'T
Our editorial team reviews specifications, product data, and field-use information to keep pages accurate.
$133.99
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SKU: 915000018
Overview
This barrel is intended for AR-15 builders and upgraders who want a 16-inch, mid-length option in a Government profile. 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 and fitted with a nickel-boron coated barrel extension and M4 feed ramps. For hunters and shooters assembling a versatile rifle, it offers a straightforward configuration suited to a wide range of build goals.
Why Hunters Choose the Ballistic Advantage
Chambered 5.56
NATO, accepting both 5.56x45mm and
Mid-length Barrel
Configuration suits AR-15 builds and
Government Profile
Familiar option for AR-15 enthusiasts
Nickel-boron Coated
Barrel extension includes M4 feed
Available Multiple
Chamberings, lengths, and contours for
Key Features
- AR-15 Modern Series 16-inch mid-length barrel in Government profile
- Chambered in 5.56 NATO for use with 5.56x45mm and .223 Remington ammunition
- Precision machined from 4150 chrome-moly-vanadium steel alloy
- Nickel-boron coated barrel extension
- Includes M4 feed ramps to support feeding and extraction
- Part of Ballistic Advantage's Modern Series barrel lineup
Best Used For
- AR-15 builders wanting a 16-inch mid-length 5.56 NATO barrel for a general-purpose rifle setup.
- Shooters upgrading an existing AR-15 and looking for a Government-profile barrel option.
- Users who want a barrel chambered for both 5.56x45mm and .223 Remington ammunition.
- Builders prioritizing a precision-machined barrel with M4 feed ramps for a reliable feed system.
- Hunters or range shooters choosing from Ballistic Advantage's Modern Series barrel configurations.
Specifications
| Barrel Contour | Government |
|---|---|
| Barrel Extension Coating | Nickel-boron |
| Chambering | 5.56 NATO |
| Compatible Ammunition | 5.56x45mm and .223 Remington |
| Feed Ramps | M4 feed ramps |
| Gas System | Mid-Length |
| Profile | Government |
| Steel Alloy | 4150 chrome-moly-vanadium steel alloy |
Pros
- Chambered in 5.56 NATO, accepting both 5.56x45mm and .223 Remington ammunition.
- Mid-length barrel configuration suits AR-15 builds and upgrades.
- Government profile offers a familiar option for AR-15 enthusiasts.
- Nickel-boron coated barrel extension includes M4 feed ramps.
- Available in multiple chamberings, lengths, and contours for build flexibility.
- Precision machined from 4150 chrome-moly-vanadium steel alloy.
Considerations & Trade-offs
- This is a 16-inch mid-length Government-profile barrel, so it reflects a specific balance of length and contour rather than a lightweight or compact setup.
- It is chambered in 5.56 NATO, which also accepts .223 Remington, but it is not presented as a multi-caliber option beyond that.
- The description does not include key fit-and-finish details such as weight, handguard compatibility, or included accessories, so those should be verified before building.
- The long description is truncated and does not provide a complete profile explanation, so some configuration nuances are not fully documented here.
Suggested Comparisons
- AR-15 replacement barrels
- 5.56 NATO rifle barrels
- AR-15 upper receiver parts
- AR-15 build and upgrade components
Suggested Accessories
- Barrel nut
- Gas block
- Handguard
- Muzzle device
Frequently Asked Questions
What caliber is this barrel chambered in?
This barrel is chambered in 5.56 NATO, and the description says it accepts both 5.56x45mm and .223 Remington ammunition.
What profile is this barrel?
The product title identifies it as a 16" Mid-Length Barrel in Government contour/profile.
What material is the barrel made from?
The long description states the barrel is precision machined from 4150 chrome-moly-vanadium steel alloy.
Does this barrel include any feed-ramp or extension features?
Yes. The description says it has a nickel-boron coated barrel extension with M4 feed ramps.
Is this barrel intended for a new build or an upgrade?
The description says Ballistic Advantage offers barrels in multiple chamberings, lengths, and contours so you can find the exact barrel needed for either building or upgrading a rifle.