Barrel PartsBallistic AdvantageSold by Brownells

Ballistic Advantage

Premium Series 6mm Arc Mid-Length Barrels For Ar-15 - 6mm Arc 16'''' 1-7 Twist Spr Mid-Length Bbl Threaded Black

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

16-inch 6mm

ARC barrel for AR-15 platforms

Hardened 416r

Stainless steel construction

Qpq Corrosion-resistant

Finish

1:7 Twist

Mid-length gas system

Spr Profile

.750-inch gas block journal

$232.75
View on Brownells

You'll be taken to Brownells to complete your purchase.

Hunter's Outpost earns a commission from affiliate links at no extra cost to you.

SKU: 430108652

Overview

Built for AR-15 setups chambered in 6mm ARC, this 16-inch barrel is suited to hunters and shooters looking to configure a compact rifle with a mid-length gas system and SPR profile. It is machined from hardened 416R stainless steel and finished with QPQ, with a nickel boron coated extended M4 feed ramp extension included in the design. The 1:7 twist rate, .750" gas block journal, and 5/8x24 threaded muzzle provide a clear specification set for compatible builds. At 39.3 oz, it is a substantial barrel option for a purpose-driven rifle setup.

Why Hunters Choose the Ballistic Advantage

16-inch Barrel

Length suits compact AR-15 builds

Hardened 416r

Stainless steel construction is clearly

Qpq Corrosion-resistant

Finish adds a practical protective

1:7 Twist

Rate is listed for this

Mid-length Gas

System is specified for the

Key Features

  • 16-inch 6mm ARC barrel for AR-15 platforms
  • Hardened 416R stainless steel construction
  • QPQ corrosion-resistant finish
  • 1:7 twist rate with mid-length gas system
  • SPR profile with .750-inch gas block journal
  • 5/8x24 threaded muzzle
  • Nickel Boron coated extended M4 feed ramp extension

Best Used For

  • Hunters building a 6mm ARC AR-15 with a 16-inch mid-length barrel setup
  • Shooters wanting an SPR-profile barrel for a more purpose-built rifle configuration
  • Users needing a threaded 5/8x24 muzzle for compatible muzzle devices
  • Builders prioritizing a .750-inch gas block journal for standard component fitment
  • Owners choosing Ballistic Advantage Premium Series components for a matched build

Specifications

Blade FinishQPQ Corrosion Resistant
Caliber6mm ARC
Feed Ramp ExtensionNickel Boron Coated Extended M4 Feed Ramp Extension
Gas Block Journal0.750"
Gas System LengthMid-Length
Length16"
MaterialHardened 416R Stainless Steel
Muzzle5/8x24
ProfileSPR
Twist Rate1:7"
Weight39.3 oz

Pros

  • 16-inch barrel length suits compact AR-15 builds chambered in 6mm ARC.
  • Hardened 416R stainless steel construction is clearly specified in the product data.
  • QPQ corrosion-resistant finish adds a practical protective surface.
  • 1:7 twist rate is listed for this barrel.
  • Mid-length gas system is specified for the barrel configuration.
  • Nickel Boron coated extended M4 feed ramp extension is included.

Considerations & Trade-offs

  • This is a 16-inch barrel, so it offers less compactness than shorter options while still keeping the mid-length gas system.
  • The .750" gas block journal means compatibility depends on using a matching gas block size.
  • The 1:7" twist rate is fixed, so it is best suited to shooters who want that specific twist rather than a more flexible setup.
  • The threaded 5/8x24 muzzle requires compatible muzzle devices or accessories.

Suggested Comparisons

  • AR-15 barrels
  • 6mm ARC upper components
  • Mid-length gas system barrels
  • Threaded rifle barrels

Suggested Accessories

  • AR-15 upper receiver
  • Gas block
  • Muzzle device
  • Barrel nut

Frequently Asked Questions

What cartridge is this barrel made for?

This barrel is listed as a 6mm ARC barrel for AR-15 platforms.

What are the key specifications provided for this barrel?

The listed specs are: 16" length, hardened 416R stainless steel, SPR profile, QPQ corrosion resistant finish, 1:7" twist rate, mid-length gas system, .750" gas block journal, 5/8x24 threaded muzzle, and 39.3 oz weight.

Does this barrel include any feed ramp feature?

Yes. The description says Ballistic Advantage Premium Series Barrels feature a Nickel Boron Coated Extended M4 Feed Ramp Extension.

What finish is on the barrel?

The barrel is listed with a QPQ corrosion resistant finish.

What muzzle threading does this barrel use?

The muzzle is listed as 5/8x24 threaded.