FAXON MATCH SERIES HEAVY FLUTED 20" RIFLE-LENGTH 6.5 GRENDEL AR15 BARREL

Faxon
SKU:
15BG8R20FHQ-5R-NP3
|
UPC:
816341022133
Availability:
Usually Ships Within 2 Business Days
$340.00
(10 reviews)
Current Stock:
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Faxon Match Series — 20" Heavy Fluted 6.5 Grendel AR-15 Barrel (Rifle-Length Gas)

416R Stainless • 5R Rifling • Heavy Fluted • 1:8 Twist • Rifle-Length Gas • Nickel Teflon M4 Extension

The Faxon Match Series 20" Heavy Fluted 6.5 Grendel barrel brings long-range precision and unmatched durability to the AR-15 platform. The Heavy Fluted profile increases stiffness and heat dissipation while reducing overall weight, delivering superior accuracy and balance.

Each barrel is machined from 416R stainless steel with 5R button rifling for improved velocity, less fouling, and cleaner bores. After precision machining, the barrels are Nitride treated inside and out for corrosion resistance and extended barrel life. A Nickel Teflon–coated M4 extension ensures a tight receiver fit, reduced friction, and consistent accuracy.

Key Benefits

  • Heavy Fluted Profile: Increases rigidity and cooling efficiency while cutting unnecessary weight.
  • Match-Grade Precision: 416R stainless steel and 5R rifling ensure superior accuracy and ease of cleaning.
  • Rifle-Length Gas System: Ideal for long-range stability and smooth recoil impulse.
  • Durable Nitride Finish: Protects both the bore and exterior from corrosion and wear.
  • Nickel Teflon Extension: Enhances lubricity, corrosion protection, and fit consistency for improved accuracy.
  • Quality Control: Stress relieved, air-gauge tested, MPI inspected, and headspace verified.

Specifications

Caliber / Chamber
6.5 Grendel Type II
Length
20"
Twist Rate
1:8 Right-Hand Twist
Profile
Heavy Fluted
Gas System
Rifle-Length
Material
416R Stainless Steel
Rifling Method
Button-Rifled, 5R
Finish
Salt Bath Nitride (Inside & Out)
Muzzle Threads
5/8x24
Gas Block Diameter
.750"
Gas Block Journal Length
1.1"
Barrel Extension
M4 — Nickel Teflon Coated
Weight
1.98 lbs
Crown
Recessed 11° Target Crown

Frequently Asked Questions

What makes the Heavy Fluted profile ideal?
The Heavy Fluted design increases rigidity, improves heat dissipation, and reduces overall weight compared to a solid heavy barrel.
What is the benefit of 5R rifling?
5R rifling reduces bullet deformation and fouling, leading to increased accuracy, velocity, and easier maintenance.
Is this barrel compatible with my AR-15 platform?
Yes. This is a Type II 6.5 Grendel barrel designed for AR-15 builds using appropriate Type II bolts and magazines.

Overview: 20" Match Series Heavy Fluted 6.5 Grendel Barrel

The Faxon Match Series 20" Heavy Fluted 6.5 Grendel barrel delivers long-range precision, durability, and improved cooling capacity. Constructed from 416R stainless steel and 5R button-rifled for superior accuracy, each barrel undergoes rigorous inspection and Nitride treatment for maximum service life.

Featuring a Nickel Teflon–coated M4 extension, recessed target crown, and rifle-length gas system, this barrel is engineered for consistent accuracy and reliability—100% made in-house by Faxon Firearms in Cincinnati, Ohio.

Barrel Material:
416-R Stainless
Barrel Type:
5R Button Rifled
Caliber:
6.5 Grendel Type II
Barrel Length:
20"
Barrel Twist:
1:8
Barrel Profile:
Heavy Fluted
Barrel Gas System:
Rifle
Outside Finish:
QPQ Nitride
Muzzle Thread:
5/8x24
Gas Block Diameter:
.750"
Gas Block Journal Length:
1.1"
Barrel Extension:
M4 - Nickel Teflon Coated
Barrel Weight:
1.98lbs
Crown Type:
Recessed 11-degree Target Crown

Reviews

  • 5
    Barrel

    Posted by Rickey Rudd on Dec 23rd 2024

    Excellent machining, almost 6 ounces lighter than a 5.56 govt profile 20" barrel. Beautiful piece! Can hardly wait to send rounds downrange with the puppy!

  • 5
    Match 6.5 Grendel barrel

    Posted by Matthew Weaver on Aug 19th 2024

    Nice looking barrel. Just finished building my upper so I haven’t had the chance to take it to the range yet. I have 3 different barrels of theirs and due to medical issues I haven’t had a chance to shoot any of them. But I’m expecting good results.

  • 5
    6.5 grendel barrel

    Posted by george laudun on Mar 2nd 2024

    This was my first Faxon purchase along with a Faxon BCG for my build and I’m thoroughly pleased. The accuracy is outstanding and quality craftsmen ship are second to none. I’ll be buying more Faxon products for my next build.

  • 5
    Has served me well.

    Posted by Roger Pemberton on Nov 7th 2023

    This barrel has been great since building the rifle. It has shot every bullet I've tried in it sub MOA with typical load work up. I have since purchased a 16" 223 Wylde heavy fluted barrel that I suspect will shoot just as well.

  • 5
    20 inch 6.5G barrel

    Posted by Justin Smith on Aug 20th 2023

    Absolutely love this barrel. Looks great and shoots straight. Only have been able to go out 200 yards but I’m hitting quarters! Very pleased!

  • 5
    Barrel

    Posted by KURT T CARLSON on Dec 6th 2021

    Ordered the 6.5 grendel barrel. loaded up some 123 grn. bullets. Shoots a 5 shot half inch group. very pleased.

  • 5
    6.5 Grendel Heavy Fluted

    Posted by Larry Hartwick on Jul 25th 2018

    Really nice barrel, shoots as good as it looks. I've never had a bad barrel from Faxon.

  • 5
    6.5 Grendel, 20", heavy fluted barrel

    Posted by rYd on Mar 3rd 2018

    Quality product, fit and finish are all top notch. Have not had a chance to shoot it yet but I expect it will be very accurate. Only complaint I have is with USPS. Priority Mail took over two weeks to be delivered.

  • 5
    6.5 grendel barrel 20in. Fluted heavy

    Posted by Patrick Seiler on Feb 6th 2018

    I had an Alexander Arms 6.5 grendel years back. Faxon quality is above original. Was using Hornady match black. 2 in groupings at 100 yards. 200 2.5. That was with wind compensation. Best barrel for the money if you want to do a 6.5 grendel.