Faxon Sentinel 12" 8.6 BLK AR-10 Pistol

(1 review)
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The Sentinel 8.6 BLK, part of Faxon's Summit Line of firearms, boasts a billet aluminum receiver set, G3 Aluminum Streamline M-LOK Handguard, new 8.6 BLK MuzzLok® Muzzle Device, and the impressive 1:3 twist Modified Big Gunner Profile Barrel. The Faxon Sentinel is backed by Faxon's Lifetime Guarantee.

Faxon Sentinel in 8.6 BLK rifles are optimized for supersonic ammunition. Use of subsonic ammunition may require adjustment to rifle for optimal performance.


  • 7075 Billet Aluminum Receiver Set
  • Faxon 12" 1:3 Twist Big Gunner Profile 8.6 BLK Barrel
    • 4150 CMV, Nitrided
  • Faxon MuzzLok® 8.6 BLK 3-Port Muzzle Brake
  • Faxon G3 Aluminum Streamline M-LOK Handguard
  • Faxon G2 Superfinished AR-10 BCG
  • Faxon AR-10 Height Gas Block
  • SBA3 Pistol Brace
  • Faxon Trigger by Rise Armament
  • B5 Pistol Grip
  • Ambi Charging Handle
  • Ambi Safety Selector
  • ​​​​​​​Pistol-Length Gas System


Weights & Dimensions:

  • Weight: 7.87 lbs
  • Length: 29.25"
  • Depth: 7.5"
  • Width: 2

ADVISORY: At the time of product launch, 8.6 BLK is not of SAAMI spec. Early production ammunition may be inconsistent or cause malfunction of firearm.

Note: Cannot be shipped to CA, CT, DC, HI, IL, MD, MA, NJ, or NY state



  • 5
    Solidly built AR

    Posted by PeteM on Aug 18th 2022

    This is one solid AR build. Quality components and fitment. I ordered this as a pre-order several days before the release, and it shipped well before the release date. I am still in the process of procuring 8.6 ammo / ammo components, so I haven't been able to shoot it, but I have zero doubts that this will meet or exceed my expectations.