FAXON MATCH SERIES HEAVY FLUTED 20" RIFLE-LENGTH .308 WIN AR10 BARREL
Faxon
$349.00
(7 reviews)
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Faxon
FAXON MATCH SERIES HEAVY FLUTED 20" RIFLE-LENGTH .308 WIN AR10 BARREL
Faxon Match Series — 20" Heavy Fluted .308 Win AR-10 Barrel
416R Stainless • 5R Button Rifled • Heavy Fluted • Salt Bath Nitride (I/O) • Nickel Teflon Extension • 5/8x24 Threads • Rifle-Length Gas
The Faxon Match Series 20" Heavy Fluted .308 Win Barrel pushes precision and durability even further for long-range AR-10 builds. Manufactured 100% in-house in Cincinnati, Ohio, it pairs 416R stainless with 5R button rifling and a heavy fluted contour to maximize rigidity, cooling, and consistency across extended strings of fire.
After rigorous inspection, each barrel is Salt Bath Nitride treated inside and out to harden the bore and combat corrosion. A Nickel Teflon–coated DPMS/LR-308 extension adds dry lubricity and a snug receiver fit that supports accuracy and reliability.
Every Match Series barrel is stress-relieved, air-gauge tested, magnetic particle inspected, and individually headspaced with precision gauges—ready for match, duty, or hunting applications.
Key Benefits
- Heavy Fluted Contour: Increases stiffness and heat dissipation while trimming unnecessary weight.
- 416R Stainless + 5R Rifling: Match-grade steel and land/groove geometry to reduce jacket deformation, ease cleaning, and enhance velocity consistency.
- Nitride Inside & Out: Bore and exterior protection for long-term durability.
- Nickel Teflon Extension: Low-friction lockup and tighter receiver fit to support precision.
- Rifle-Length Gas: Smooth recoil impulse and reliable cycling for 20" AR-10 builds.
- 5/8x24 Threads: Standard interface for .30-cal muzzle devices and suppressors.
- Individually MPI & Headspaced: Safety and consistency verified on every barrel.
Specifications
Important Product Note
Match Series barrels are manufactured to tight tolerances. Verify proper torque, receiver fit, and headspace when installing on DPMS-pattern receivers. Faxon recommends professional installation. Improper installation or incompatible parts may cause damage or void warranty.
Frequently Asked Questions
What advantages does 5R rifling provide?
5R places lands opposite grooves and reduces sharp angles, limiting jacket deformation, improving velocity consistency, and easing cleaning.
Why choose a heavy fluted contour?
You get the stiffness of a heavy barrel with better cooling and lower weight than a bull contour—ideal for precision and sustained strings of fire.
Is this barrel suppressor-ready?
Yes. Standard 5/8x24 threading fits most .30-cal suppressors and muzzle devices. Verify suppressor caliber rating.
Overview: 20" Match Series Heavy Fluted .308 Win Barrel
The Faxon Match Series 20" Heavy Fluted .308 Win Barrel blends 416R stainless, 5R rifling, and full QPQ treatment to deliver long-range accuracy, corrosion resistance, and consistent harmonics. The Nickel Teflon extension promotes slick, repeatable lockup in DPMS/LR-308 receivers for dependable precision.
Every barrel is proudly made in Cincinnati, Ohio, then stress-relieved, air-gauge verified, MPI inspected, and precision headspaced—so you can focus on performance from the first shot to the last.
- Barrel Material:
- 416-R Stainless
- Barrel Type:
- 5R Button Rifled
- Caliber:
- .308 WIN
- Barrel Length:
- 20"
- Barrel Twist:
- 1:10
- 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:
- LR-308 (DPMS Compatible)
- Barrel Weight:
- 2.4 lbs
- Crown Type:
- Recessed 11-degree Target Crown
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Reviews
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Amazing barrel
This barrel felt amazing right out of the box. Shoots even better!!
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Perfect barrel
I bought this barrel for a buddy’s build. I loved it so much I bought one for myself!!
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308 20in greatness
This barrel is amazing!! Got it for a friends build and now I have to get one for me!!
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Opens up w/ heat
I like to accuracy test my semi-auto barrels after warming them up a little as well as starting with a cold gun. While this barrel performs well for me when cold (1.2 MOA 5 round groups, acceptable for my purposes), I get poor performance when warm (slowly fire 1 20 round magazine, reload with 5 rounds of match ammunition and group), opening up to about 2.4 MOA in a lateral string pattern - still good from a military standpoint but a little disappointing. I wonder if this isn't partly due to the stresses introduced by machining out the flutes and if a barrel with less external work done might be better. This barrel strongly prefers heavier ammo, with best performance so far coming from 175 gr. Nosler and SIG loads.
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Faxon 20" match 308. Good shooting barrel.
When it showed up there was a bad ding on the shoulder side were the barrel nut makes contact and applies torque to upper reciver. I had to file that away. Fitment to the upper was super tight and I loved that. So as for aesthetics would have been 5 out of 5 easy if not for the dent/ding. Why not ship your match barrels in something better then a bag? That's seriously my only issue as this barrel shoots really well and the bore is seriously nice. FAXON PLEASE UPDATE YOUR PACKAGKING!
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Extremely impressed
I purchased this barrel based on several weeks of research and more research, trying to find the best quality I could afford for my build. The packaging and shipping were excellent. The nitride finish is very robust. After following the break-in process, this barrel will certainly out-perform me. From Hornady match ammo to bargain bulk ammo this barrel takes it all and still delivers superb accuracy and very easy cleaning. I will definitely recommend this barrel and Faxon Firearms to anyone. High quality without the ultra-elite price.
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Another great barrel
I purchased this barrel several months ago and have been able to put approx 300 rds of match ammo through it.After following Faxon's break in procedure I have been able to consistently shoot 1/2 - 5/8 inch groups at 100 yards and ring 8" and 10" plates at 600 yards with no problem. This is the second barrel I have purchased from Faxon and could'nt be any happier. The other barrel is a 20" 308 pencil on a light weight hunter build. This barrel is sitting on a JD Machine matched upper & lower, Faxon match bolt carrier, SLR adjustable gas block, SLR ultra light handguard, Gamma VG6 break, CNC 3.5 trigger, Magpul PRS Gen3 stock, Vortex Razor HD 5x20. Atlas bipod. My son in law is an active duty Marine Corps Sount Sniper and instructor at Sniper School. He loves this rigle and says it will out shoot their Knights M110 SASS all day long. I'm shooting Hornady 168 BTHP Match and Federal 168 BTHP Sierra Match King.