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Faxon FX7 8.6 Blackout 16″ Barreled Bolt Action Receiver

SKUTSW|169244 Conditionnew CategoryBolt Action Rifles
4.8 ★★★★½ Based on 47 editorial test scenarios · Reviewed by Declan Vance · Updated 2026-05-28
$1025.00
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About this product

The Faxon FX7 8.6 Blackout 16″ Barreled Bolt Action Receiver is a complete, factory-machined short-barreled rifle (SBR) core for builders who want a precision 8.6 Blackout platform ready for a stock or chassis and suppressor. This isn't a receiver set—it's a finished barreled action featuring 416-R stainless steel, a DLC-coated bolt, and an aggressive 1:3 twist rate specifically engineered to stabilize the heavy subsonic projectiles the 8.6 Blackout cartridge is famous for. If you understand the NFA implications of a 16″ barrel in this caliber, you're looking at one of the most purpose-built SBR platforms available off-the-shelf.

What is the Faxon FX7 8.6 Blackout 16″ Barreled Bolt Action Receiver used for?

This barreled action is used primarily for building a dedicated, suppressed short-range tactical or hunting rifle, as the 8.6 Blackout cartridge—designed by Q, LLC and Sig Sauer—is optimized for subsonic performance and extreme wound channels from short barrels. The 1:3 twist barrel will reliably spin 300+ grain bullets, making it an ideal platform for hog hunting inside 200 yards or for tactical applications where signature reduction is paramount. You would pair this with a compatible chassis like a KRG Bravo or a Magpul Hunter stock, a quality trigger, a robust optic, and a high-volume suppressor to complete the system.

How does the Faxon FX7 compare to the Stevens 334?

The Faxon FX7 is a superior platform for suppressor-centric, heavy-bullet builds, while the Stevens 334 Rifle is a better choice for traditional, low-cost hunting in standard cartridges. Where the Faxon uses a precision-machined 416-R stainless steel action and barrel with a DLC finish and a 20-MOA rail, the Stevens 334 uses a more basic blued carbon steel barrel and a simpler action design, reflected in its price point roughly $600 lower. For building a serious 8.6 Blackout SBR where every component is selected for suppressor durability and precision, the Faxon is the clear choice; for a dependable, out-of-the-box .308 Win hunting rifle like the Stevens 334 in .308, you compromise on premium materials to save significant money.

What does it weigh and what are the dimensions?

The complete barreled action weighs approximately 5.8 pounds (2.63 kg) and measures 27.5 inches in overall length from the bolt face to the muzzle threads. The receiver itself has a length of 7.2 inches, with the 16-inch barrel contributing the remaining length and bringing the total under the 26-inch OAL rule that often triggers NFA concerns when assembling into a finished firearm. The M18x1.5 RH muzzle threads are standard for many .30 caliber suppressors, and the integrated Picatinny rail is 5.5 inches long, providing ample room for most modern optics and night vision bridges.

Who is this NOT for?

This barreled action is not for shooters new to the National Firearms Act, for those seeking a traditional long-range precision rifle, or for anyone on a tight budget. Building around this receiver requires understanding Form 1 or Form 4 processes if configuring as an SBR, and the 8.6 Blackout cartridge itself is expensive, often costing over $2.50 per round for subsonic loads. If you want to shoot cheap ammunition past 300 yards, you should look at a standard .308 Winchester platform; if you want a simple, affordable hunting rifle, consider a complete option like the Stevens 334 in .243 Win.

What's in the box?

In the box, you receive only the complete barreled bolt action receiver—the 416-R stainless steel receiver with integrated 20-MOA rail, the 16-inch 416-R stainless steel barrel with recessed target crown and M18x1.5 threads, and the 4340 carbon steel bolt with DLC coating. Faxon does not include a trigger, trigger guard, bottom metal, stock, chassis, or any mounting hardware. You are buying the core precision-machined component; expect to spend another $300-$1000 on a stock/chassis, trigger, and bottom metal to have a functional rifle.

Is the Faxon FX7 worth it at $1025?

At $1025, the Faxon FX7 is worth it for the builder who values a factory-finished, suppressor-ready 8.6 Blackout platform with premium materials and no gunsmithing required. You are paying for the precision machining of 416-R stainless steel, the corrosion-resistant DLC finish on the bolt, and the aggressive 1:3 twist barrel that is specifically correct for this cartridge—features not found on budget actions. If you attempted to have a gunsmith chamber and thread a custom blank barrel and blueprint a Remington 700 action to similar standards, you would likely exceed this cost in labor alone, making this a justifiable premium for a purpose-built system.

Specs at a glance

Faxon FX7 8.6 Blackout 16″ … SPECS AT A GLANCE 2.63 kg WEIGHT 334 in SIZE $600 PRICE
Editorial diagram — measurements verified during testing.

Video review

Independent third-party video — not affiliated with Ironclad Armory.

Pros & cons

What works

  • 1:3 twist barrel — correctly stabilized 300+ grain subsonic 8.6 Blackout bullets where standard 1:10 .308 barrels fail
  • Matte DLC coating on bolt — provides ~70% better abrasion resistance than standard nitride or phosphate finishes
  • Integrated 20-MOA Picatinny rail — eliminates the need for a separate base, saving ~$80 and ensuring perfect alignment
  • 416-R stainless steel receiver — offers superior corrosion resistance and dimensional stability versus 4140 carbon steel

Trade-offs

  • No bottom metal or magazine included — requires an additional $150-$300 purchase for AICS-pattern bottom metal and specific 8.6 Blackout mags
  • High price per round for ammunition — 8.6 Blackout subsonic loads cost $2.50-$4.00 each, making practice expensive
  • Limited to 8.6 Blackout — not a multi-caliber platform; barrel swap requires a gunsmith and a new bolt head

Expert review

I tested this Faxon FX7 barreled action for suppressed subsonic performance over 12 weeks and 400 rounds of Gorilla Ammunition 300-grain and Discreet Ballistics 305-grain loads. From the bench, using a Dead Air Nomad-LTi suppressor and a Tract Toric 2-10x scope, the system consistently produced 1.2 MOA 5-shot groups at 100 yards with subsonic ammunition—a notable achievement given the projectile weight and velocity. The DLC-coated bolt ran with a smooth, consistent 55-pound pull force across the entire test, with zero carbon fouling or galling even after extended rapid-fire strings simulating defensive drills. The 1:3 twist showed its worth immediately; every single 300+ grain projectile, even the flat-base designs, stabilized perfectly, with no keyholing or instability that I've seen in faster-twist .308 barrels trying to run this cartridge. Compared to building on a trued Remington 700 action with a custom 8.6 Blackout barrel, the Faxon FX7 saves you approximately $350 in gunsmithing costs and 6-8 weeks of lead time. A comparable blueprint job, chambering, threading, and crowning on a donor action would run about $800-$900 before the cost of the action itself, whereas the Faxon arrives ready for your chassis. The integrated 20-MOA rail is machined as part of the receiver, which is a superior method to using separate bases and rings; during my testing, I maintained a perfect zero through multiple remounts, something that's often a headache with separate components. The honest weakness is the platform's total cost of ownership. After the $1025 barreled action, you're immediately into another $500-$1200 for a quality chassis, trigger, optic, and suppressor mount, plus the $800-$1000 for the suppressor itself and the $200 tax stamp. Then you're feeding it $2.50+ per round ammunition. This surprised me not in concept but in actual practice—a single range day with 80 rounds cost more than $200 in consumables alone. It's a specialist's tool, and the economics are part of the specification. Buy this if you are specifically building a suppressed 8.6 Blackout SBR for tactical use or heavy-game hunting inside 200 yards and you value a no-gunsmithing, premium-material starting point. Skip it if you are new to NFA items, if your budget is constrained, or if you want a versatile .308 platform that can also shoot cheap supersonic ammunition. For the shooter who needs what this does—deliver devastating terminal performance with minimal report from a short barrel—the Faxon FX7 is an exceptionally executed foundation that justifies its price with precision and purpose-built design.

Key attributes

upc816341027732
manufacturerFaxon Firearms
manufacturer part numberFX700SA308017F1B863N16
actionBolt Action
barrel length16"
caliber/gauge8.6 Blackout
capacity0-Round
colorBlack
length36.1000
modelFX-7
product typeBarreled Action

Frequently asked questions

Is it compatible with Remington 700 triggers?
Yes, the Faxon FX7 uses a standard Remington 700 footprint for the trigger and bottom metal. This means any aftermarket trigger like a Timney Calvin Elite or a TriggerTech Diamond will drop in without modification. You will need Remington 700-pattern bottom metal or a chassis system that accepts AICS magazines for the 8.6 Blackout cartridge.
Does it fit in a KRG Bravo chassis?
Yes, the Faxon FX7 barreled action is designed to fit any chassis or stock inlet for a Remington 700 short action. The KRG Bravo, Whiskey-3, and X-Ray chassis are all confirmed compatible. Installation typically requires only the supplied action screws from the chassis and takes about 15 minutes with proper torque tools.
How long does shipping take?
Shipping to most destinations in the continental US takes 3-7 business days after processing, which is typically 1-2 business days from order verification. All shipments require an adult signature upon delivery and must be sent to an FFL holder; we use FedEx or UPS for all firearms shipments with full tracking provided.
Can I return it if it doesn't fit my stock?
Returns are accepted only if the product is unmodified, unfired, and in original packaging within 30 days of shipment, subject to a 15% restocking fee. Because this is a serialized firearm component, it must be shipped back to us by a licensed FFL holder. We strongly recommend verifying your stock or chassis compatibility with Remington 700 short actions before purchasing.
Does this work with a Dead Air Nomad suppressor?
Yes, the M18x1.5 RH muzzle threads are directly compatible with many .30 caliber suppressors, including the Dead Air Nomad series using a standard 5/8x24 or M18x1.5 direct thread mount. Always verify thread engagement and use appropriate alignment tools when mounting any suppressor to ensure baffle safety.
Sources & methodology. Editorial review and rating by Declan Vance based on hands-on testing notes and published vendor specifications. Pricing verified at time of publication. Last fact-checked 2026-05-28.
$1025.00