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Ballistic Advantage

Premium Series 6.5 Grendel Rifle Barrels For Ar-15 - 6.5 Grendel 20'''' 1-8 Twist Dmr Rifle Bbl Threaded Ss

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

18-inch 6.5

Grendel Type 2 chambered barrel

Machined From

A bead-blasted finish

Premium Series

Barrel includes a nickel boron

1:8 Twist

Rate and rifle-length gas system

0.750-inch Gas

Block journal and 5/8x24 threaded

$251.75
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SKU: 430108651

Overview

Built for AR-15 setups chambered in 6.5 Grendel Type 2, this 18-inch barrel is suited to hunters and shooters looking for a rifle-length option with an SPR profile. It is machined from hardened 416R stainless steel with a bead blasted finish and includes a Nickel Boron coated extended M4 feed ramp extension. The .750" gas block journal and 5/8x24 threaded muzzle support compatible installation, while the longer .750" profile dimension is intended for proper fitment with the OPS Inc 12th model collar and suppressor. At 39.3 oz, it is a substantial barrel choice that may be best suited to builds where that added profile is acceptable.

Why Hunters Choose the Ballistic Advantage

18-inch 6.5

Grendel Type 2 chambered barrel

Machined From

Bead blasted finish

1:8 Twist

Rate supports this barrel’s specified

Rifle-length Gas

System and .750-inch gas block

5/8x24 Threaded

Muzzle provides standard suppressor or

Key Features

  • 18-inch 6.5 Grendel Type 2 chambered barrel for AR-15 builds.
  • Machined from hardened 416R stainless steel with a bead-blasted finish.
  • Premium Series barrel includes a nickel boron coated extended M4 feed ramp extension.
  • 1:8 twist rate and rifle-length gas system.
  • 0.750-inch gas block journal and 5/8x24 threaded muzzle.
  • SPR profile with a 39.3-ounce listed weight.

Best Used For

  • Hunters building an AR-15 in 6.5 Grendel Type 2 for a rifle-length setup
  • Users needing an 18-inch barrel with 1:8 twist and .750-inch gas block journal
  • Shooters planning compatibility with an OPS Inc 12th model collar and suppressor
  • Those wanting a bead-blasted stainless barrel for a premium-series AR-15 build

Specifications

Blade FinishBead Blasted
Caliber6.5 Grendel
ChamberType 2
Compatibility NoteLonger .750 profile dimension necessary for proper installation of the OPS Inc 12th model collar and suppressor
Feed Ramp ExtensionNickel Boron Coated Extended M4 Feed Ramp Extension
Gas Block Journal.750 in
Gas System LengthRifle
Length18 in
MaterialHardened 416R Stainless Steel
Muzzle Thread5/8x24 Threaded
Other InfoGrendel Type 2 Chamber
Part NumberBABL65G003P
ProfileSPR
Twist Rate1:8
Weight39.3 oz

Pros

  • 18-inch 6.5 Grendel Type 2 chambered barrel for AR-15 builds
  • Machined from hardened 416R stainless steel with bead blasted finish
  • 1:8 twist rate supports this barrel’s specified 6.5 Grendel configuration
  • Rifle-length gas system and .750-inch gas block journal are clearly specified
  • 5/8x24 threaded muzzle provides standard suppressor or muzzle device compatibility
  • Nickel Boron coated extended M4 feed ramp extension included

Considerations & Trade-offs

  • This barrel is configured around a 6.5 Grendel Type 2 chamber, so compatibility should be checked carefully against the intended upper and bolt setup.
  • The 18-inch length and 39.3 oz weight make it a more substantial option than shorter or lighter barrels, which may matter for carry-focused builds.
  • The .750" profile dimension is specifically noted as necessary for proper installation of the OPS Inc 12th model collar and suppressor, so it is a more specialized fit than a general-purpose profile.
  • The 5/8x24 threaded muzzle and rifle-length gas system are fixed specifications, so this barrel is best suited to builds planned around those dimensions.

Suggested Comparisons

  • AR-15 barrels
  • 6.5 Grendel barrels
  • threaded rifle barrels
  • stainless steel rifle barrels

Suggested Accessories

  • AR-15 upper receiver
  • Gas block
  • Muzzle device
  • Suppressor collar

Frequently Asked Questions

What chambering is this barrel cut for?

It is listed as a 6.5 Grendel Type 2 chambered barrel.

What are the key listed specifications for this barrel?

The provided specs list an 18-inch length, 1:8 twist rate, rifle-length gas system, .750-inch gas block journal, 5/8x24 threaded muzzle, and a weight of 39.3 oz.

What material and finish are specified?

The barrel is described as machined from hardened 416R stainless steel with a bead blasted finish.

Does this barrel include any special feed ramp feature?

Yes. The product description says it features a Nickel Boron Coated Extended M4 Feed Ramp Extension.

Is this barrel intended for use with an OPS Inc 12th model collar and suppressor?

The description says the longer .750-inch profile dimension is necessary for proper installation of the OPS Inc 12th model collar and suppressor.