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Ballistic Advantage

Ar-15 Modern Series Barrels 5.56mm - Ar-15 Modern Series 7.5 Pistol Length Barrel

Our editorial team reviews specifications, product data, and field-use information to keep pages accurate.

Ar-15 Modern

Series pistol-length barrel for 5.56

Precision Machined

From 4150 chrome-moly-vanadium steel alloy

Nickel-boron Coated

Barrel extension

Includes M4

Feed ramps for feeding and

Accepts Both

5.56x45mm and .223 Remington ammunition

$109.25
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SKU: 915000009

Overview

Built for AR-15 builds and upgrades, this 7.5-inch pistol-length barrel is aimed at shooters who want a compact 5.56 NATO option for a short-barreled setup. It is precision machined from 4150 chrome-moly-vanadium steel alloy and includes a nickel-boron coated barrel extension with M4 feed ramps to support reliable feeding and extraction. Chambered for 5.56 NATO, it will accept both 5.56x45mm and .223 Remington ammunition. The DRP profile is described as a stocky design suited to short pistol-length configurations.

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 provided for feeding

Offered 7.5-inch

Pistol-length configuration for compact AR-15

Key Features

  • AR-15 Modern Series pistol-length barrel for 5.56 NATO chambering
  • Precision machined from 4150 chrome-moly-vanadium steel alloy
  • Nickel-boron coated barrel extension
  • Includes M4 feed ramps for feeding and extraction support
  • Accepts both 5.56x45mm and .223 Remington ammunition
  • Distinct Rigid Profile designed for short pistol builds

Best Used For

  • For AR-15 builders selecting a 7.5-inch pistol-length barrel for a compact setup.
  • For shooters wanting a 5.56 NATO chamber that also accepts .223 Remington ammunition.
  • For upgrade projects where a precision-machined barrel with M4 feed ramps is specified.
  • For users building or replacing parts on a short-barreled AR-15 platform.
  • For buyers focused on Ballistic Advantage AR-15 barrel options and profile selection.

Specifications

Accepts Ammunition5.56x45mm and .223 Remington
Barrel Extension CoatingNickel-boron
Barrel Length7.5
Barrel Length Unitin
Barrel ProfileDRP (Distinct Rigid Profile)
Chambering5.56 NATO
Feed RampsM4
Material4150 chrome-moly-vanadium steel alloy
Pistol LengthYes

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 provided for feeding and extraction support.
  • Offered in a 7.5-inch pistol-length configuration for compact AR-15 builds.

Considerations & Trade-offs

  • This is a 7.5 pistol-length barrel, so it is intended for compact AR-15 builds rather than full-length rifle configurations.
  • It is chambered in 5.56 NATO, which allows use of both 5.56x45mm and .223 Remington ammunition, but it is not a different chambering option.
  • The description emphasizes barrel options and profile variety, but does not provide details on weight, length beyond the title, or other fitment specifics beyond the stated pistol-length format.
  • The DRP profile is described as stocky and designed for short setups, which may suit compact builds but is a more specialized choice than longer, general-purpose barrel profiles.

Suggested Comparisons

  • AR-15 pistol barrels
  • 5.56 NATO barrels
  • AR-15 barrel upgrades
  • AR-15 upper receiver components

Suggested Accessories

  • Barrel nut
  • Gas system components
  • Muzzle device
  • Upper receiver assembly

Frequently Asked Questions

What chambering is this barrel made for?

This barrel is chambered in 5.56 NATO, so it is intended to accept both 5.56x45mm and .223 Remington ammunition.

What type of AR-15 build is this barrel intended for?

The title identifies it as a 7.5-inch pistol-length barrel in Ballistic Advantage’s Modern Series, so it is aimed at AR-15 pistol-length builds.

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 any feed ramp or extension features?

Yes. The description says it has a nickel-boron coated barrel extension with M4 feed ramps to help ensure reliable feeding and extraction.

What profile is this barrel?

The product text identifies the DRP, or Distinct Rigid Profile, and describes it as a stocky profile designed for short pistol-length use.