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Questions & Answers
Does the barrel come with a thread protector? Expert Answer

The Faxon Firearms 16in, Big Gunner, 6.5 Grendel Barrel uses 5/8x24 threads and does not include a thread protector.

by Ethan, Gear Expert, August 11, 2022
Is this barrel compatible with a 6.5 Grendel type II BCG? Manufacturer Answer

Yes, the barrel has a SAAMI spec chamber so it will require a Type II bolt for proper headspace and function.

by Faxon Firearms, Manufacturer, May 28, 2025
Customer Reviews
Helpful Positive Review
Great Fit and Finish by NATHAN, November 2, 2017
I installed this barrel in an aero enhanced upper to build a lightweight hunting platform. The fitment to the receiver was nice and tight and straight/ square. I debated between this profile and the 18"riflelength heavy fluted model but am going I do...
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10/10 found this helpful
Helpful Positive Review
fantastic cheaper barrel by OkieZero, Verified Owner, July 16, 2020
I hated saying that this barrel is cheaper but it is. It performs great out of the box and costs significantly less than competitors barrels with similar performance. Can't say enough about this barrel, but I must! Seriously get it especially if th...
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2/2 found this helpful
Helpful Positive Review
i love Faxon by Judson, Verified Owner, July 4, 2020
I needed a lightweight AR and my other 18" SS barrels are 1lb heavier. I was looking to build an AR10 but the cost and the weight is a bit much to be on the run. Grendel gives me superior ballistics from both my 5.56 and AR10 and that's not a game :)...
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1/2 found this helpful
Most Recent Reviews
Reasonable price for amazing quality by Gun Smoke, Verified Owner, July 19, 2025
I tried bear creek arsenal for my 6.5 Grendel and the barrel jammed every bullet and eventually lodged a bullet in the chamber without firing it. Decided to upgrade to a better barrel and since upgrading I have not had a single bullet jam and it is h...
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Most Recent Reviews
Fantastic Accuracy by Jeff, Verified Owner, March 11, 2024
Bought this a couple of years back, but hadn't got to shoot it until now when Ammo became available in my area. Built into a Mega thermal-fit upper with an Aero BCG and gas system, KAK handguard, and a Burris 4.5-14x42 scope. Took 3 rounds to zero ...
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Read All 5 Reviews

Final Stretch of 2025 Begins Now! Special Pricing for Faxon Firearms Products

Blazin' Deal
Prices have been cut drastically on this product as part of a special offer. These prices are so low that there's no double-dipping with coupons or any additional discounts, but you'll still get the best deal out there. This offer won't last long, so don't miss out!
Color: Black Nitride Finish: Nitride Caliber: 6.5mm Grendel Barrel Length: 16 inBarrel Profile: Gunner Gas System Length: Mid Length Gas Block Journal Size-Diameter: .750 inThreads per Inch: 5/8x24 Barrel Twist Rate: 1-8 Barrel Material: 416R Stainless Steel Flutes: No Gun Make: AR Platform Gun Model: AR-10 Weight: 1.53 lbCondition: New Gas Block Journal Size-Length: 1.9 inGun Type: Rifle

Code: 11I-ATB-BGGN16-15BG8M16NGQ-5R-NP3

MPN: 15BG8M16NGQ-5R-NP3

UPC: 816341022102

Blazin' Deal
List: $245.00Save 17%
$202.86

Product Info for Faxon Firearms 16in, Big Gunner, 6.5 Grendel, Mid-Length, 416-R. QPQ Barrel

Enhance the quality of your firearm build by incorporating the Faxon Firearms 16in, Big Gunner, 6.5 Grendel, Mid-Length, 416-R. QPQ Barrel. Faxon Firearms uses 5R rifling to craft these AR15 Barrels, which means they contain opposite grooves and reduced sharp angles that decrease jacket formation while upping velocity. Plus, it makes the barrels easier to clean. Every Faxon Firearms 16in Nickel Teflon Coated Barrel is treated with Nitride inside and out, locking in the bore, resisting harmful elements, and extending the life of your barrel. Pick up a piece of high quality equipment and install this Faxon Firearms 16in Big Gunner QPQ Rifle Barrel today.image

WARNING: California`s Proposition 65

Specifications for Faxon Firearms 16in, Big Gunner, 6.5 Grendel, Mid-Length, 416-R. QPQ Barrel:

Manufacturer: Faxon Firearms
Color: Black Nitride
Finish: Nitride
Fabric/Material: 416R Stainless Steel
Caliber: 6.5mm Grendel
Barrel Length: 16 in
Barrel Profile: Gunner
Gas System Length: Mid Length
Gas Block Journal Size-Diameter: .750 in
Threads per Inch: 5/8x24
Barrel Twist Rate: 1-8
Barrel Material: 416R Stainless Steel
Flutes: No
Gun Make: AR Platform
Gun Model: AR-10
Weight: 1.53 lb
Condition: New
Gas Block Journal Size-Length: 1.9 in
Gun Type: Rifle
Barrel Extension Material: Nickel Teflon Coated
Rifling Profile: 5R

Features of Faxon Firearms 16in, Big Gunner, 6.5 Grendel, Mid-Length, 416-R. QPQ Barrel:

  • Gas Block Journal Length: 1.9in
  • M4 Barrel Extension
  • Manufactured 100% in-house from gun-barrel-quality bar-stock
  • Opposite grooves and reduced sharp angles that reduces jacket deformation increasing velocity and easy cleaning
  • Nitride treated inside and out, locking in the bore, improving barrel life, and keeping the elements at bay
  • Coated in a Nickel Teflon coating that maintains incredible dry lubricity, corrosion resistance, and tightens up fit between the extension and receiver
  • Magnetic Particle Inspected
  • Recessed Target Crown

Package Contents:

  • Faxon Firearms 16in, Big Gunner, 6.5 Grendel, Mid-Length, 416-R. QPQ Barrel

Faxon Firearms 16in, Big Gunner, 6.5 Grendel, Mid-Length, 416-R. QPQ Barrel Orderable Models

List of Orderable Models

  • Faxon Firearms 16in, BIG GUNNER, 6.5 Grendel, Mid-Length, 416-R. QPQ Barrel, Black Nitride, 15BG8M16NGQ-5R-NP3 , MPN: 15BG8M16NGQ-5R-NP3 , UPC: 816341022102 , Code: 11I-ATB-BGGN16-15BG8M16NGQ-5R-NP3

Faxon Firearms 16in, Big Gunner, 6.5 Grendel, Mid-Length, 416-R. QPQ Barrel Unavailable & Discontinued Models

List of Unorderable Models

  • USED, Faxon Firearms 16in, BIG GUNNER, 6.5 Grendel, Mid-Length, 416-R. QPQ Barrel, Black Nitride, 15BG8M16NGQ-5R-NP3 , MPN: 15BG8M16NGQ-5R-NP3-EDEMO , Code: 11I-ATB-BGGN16-15BG8M16NGQ-5R-NP3-EDEMO-OT-D
  • USED Faxon Firearms 16in, BIG GUNNER, 6.5 Grendel, Mid-Length, 416-R. QPQ Barrel, Black Nitride, 15BG8M16NGQ-5R-NP3, EDEMO1, Used, Condition Fair , MPN: 15BG8M16NGQ-5R-NP3-EDEMO1 , Code: 11I-ATB-BGGN16-15BG8M16NGQ-5R-NP3-EDEMO1
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