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Ar-15 Modern Series Barrels 5.56mm - Ar-15 Modern Series 13.7'''' Mid-Length Barrel Gov'T
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$152.00
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SKU: 915000103
Overview
Built for AR-15 builders and upgraders, this 13.7-inch mid-length Government-profile barrel is part of Ballistic Advantage’s Modern Series and is chambered in 5.56 NATO. It is intended for shooters who want a barrel option that works with both 5.56x45mm and .223 Remington ammunition while keeping the focus on a practical, familiar profile. The barrel is precision machined from 4150 chrome-moly-vanadium steel alloy and includes a nickel-boron coated barrel extension with M4 feed ramps to support feeding and extraction. For hunters and serious rifle users assembling a compact, purpose-driven carbine, it offers a straightforward barrel choice without unnecessary extras.
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 supports reliable feeding
M4 Feed
Ramps are included for compatibility
13.7-inch Mid-length
Government profile suits modern AR-15
Key Features
- 13.7-inch mid-length barrel in Government profile for AR-15 builds or upgrades.
- 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.
- Includes M4 feed ramps to support reliable feeding and extraction.
- Part of Ballistic Advantage's Modern Series barrels.
Best Used For
- AR-15 builders choosing a 13.7-inch mid-length barrel for a compact, purpose-built rifle
- Shooters wanting a 5.56 NATO chambered barrel that accepts .223 Remington ammunition
- Users upgrading an AR-15 with a Government profile barrel for a familiar handling balance
- Rifle builders prioritizing a precision-machined barrel with M4 feed ramps and nickel-boron extension
- Hunters and range shooters assembling a modern AR-15 around Ballistic Advantage barrel components
Specifications
| Barrel Extension Coating | Nickel-boron |
|---|---|
| Chambering | 5.56 NATO |
| Compatible Ammunition | .223 Remington, 5.56x45mm |
| Contour | Government |
| Feed Ramps | M4 feed ramps |
| Gas System Length | Mid-Length |
| Profile | Government |
| Steel Material | 4150 chrome-moly-vanadium steel alloy |
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 supports reliable feeding and extraction.
- M4 feed ramps are included for compatibility with AR-15 builds.
- 13.7-inch mid-length Government profile suits modern AR-15 configurations.
Considerations & Trade-offs
- This is a 13.7-inch mid-length barrel, so it’s a more compact setup than standard rifle-length options and should be chosen with that configuration in mind.
- It is chambered in 5.56 NATO, which allows use of both 5.56x45mm and .223 Remington ammunition, but it is not a dedicated .223-only barrel.
- The Government profile is a familiar AR-15 contour, but it may not suit builders looking for a lighter or more specialized profile.
- The product description emphasizes barrel and extension features, but does not provide complete build specifications, so compatibility should be verified against the rest of the rifle setup.
Suggested Comparisons
- AR-15 barrel
- 5.56 NATO barrel
- mid-length barrel
- government profile barrel
Suggested Accessories
- AR-15 upper receiver parts
- Muzzle device
- Barrel nut
- Handguard
Frequently Asked Questions
What chambering is this barrel built for?
This barrel is chambered in 5.56 NATO, and the product description says it accepts both military-type 5.56x45mm and civilian .223 Remington ammunition.
What profile is this specific barrel?
The title identifies it as a 13.7" Mid-Length Barrel in Government contour.
What material is the barrel made from?
The long description says Ballistic Advantage precision machines these barrels from 4150 chrome-moly-vanadium steel alloy.
Does this barrel include any feed ramp or extension details?
Yes. The description states 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 these barrels in different chamberings, lengths, and contours so you can find the exact barrel needed for a rifle build or upgrade.