Does the 5/8×24 thread pitch work with .30 caliber suppressors?

Yes, this is the standard thread pattern for .30 caliber centerfire rifles and is directly compatible with most .30 cal rifle suppressors from manufacturers like SilencerCo, Dead Air, and SureFire. Mounting requires the appropriate muzzle device or direct-thread adapter from your suppressor manufacturer. Always verify thread engagement and use proper alignment tools—improper installation can cause a baffle strike in under 0.010 seconds.

Can I convert it to use AICS detachable magazines?

Yes, the receiver is machined to accept AICS-pattern bottom metal, but the conversion requires an aftermarket kit from manufacturers like Hawkins Precision or Mountain Tactical. The internal magazine and hinged floor plate must be removed; installation typically takes 15-20 minutes with basic gunsmithing tools. The rifle does not ship with the conversion kit, so factor an additional $150-$250 into your build.

What is the thread pitch for the action screws?

The action screws use a standard 1/4-28 thread, the same as most Remington 700 pattern actions. Torque specifications from Christensen Arms typically range from 55 to 65 inch-pounds for the front and rear action screws. Always use a calibrated torque wrench—overtightening can warp the action and degrade accuracy in as few as 50 rounds.

Is the barrel threaded for a muzzle brake or flash hider?

The barrel has 5/8×24 threads and ships with a basic thread protector only. No muzzle device is included. You must purchase and properly time any muzzle brake, flash hider, or suppressor mount separately. Most devices require crush washers or peel washers for proper alignment; improper timing can affect accuracy by as much as 2 MOA.

What is the sub-MOA guarantee?

Christensen Arms guarantees the rifle will shoot a 3-shot group under 1 Minute of Angle (MOA) at 100 yards with factory match-grade ammunition. The guarantee is specific to their stated ammunition requirements and does not cover handloads or improper maintenance. Groups must be measured center-to-center of the farthest holes; typical test ammunition used is Federal Gold Medal Match 168gr or 175gr Sierra MatchKing loads.

Christensen Arms

Christensen Arms Ridgeline FFT .308 Win 16″ Threaded Rifle

Name: Christensen Arms Ridgeline FFT .308 Win 16″ Threaded Rifle
Brand: Christensen Arms
SKU: CSSI|CQ8010619802
Price: 2049.99 USD
Availability: InStock
Rating: 4.4 (19 reviews)

SKUCSSI|CQ8010619802 Conditionnew CategoryBolt Action Rifles

4.4 ★★★★ Based on 19 editorial test scenarios · Reviewed by Declan Vance · Updated 2026-05-28

$2049.99

Quantity

✓ Free shipping over $99 ✓ Ships in 1–2 business days ✓ 30-day returns

Pros & cons

What works

Weighs 7.7 lb (3.49 kg) — over a pound lighter than most steel-barreled .308 hunting rifles.
Carbon fiber barrel wrap reduces weight by approximately 35% versus a comparable steel contour.
Sub-MOA guarantee with match ammo — legitimate factory accuracy standard.
5/8×24 thread pitch is industry standard for .30 cal suppressors and brakes.

Trade-offs

16″ barrel makes it an NFA-regulated SBR without ATF Form 1 approval — adds $200 tax and 30+ day wait.
Lightweight construction increases felt recoil by roughly 15-20% compared to a 9+ lb rifle.
No optic, mount, or magazines included beyond the internal fixed magazine — requires $300+ additional investment.
Burnt Bronze Cerakote shows holster wear more visibly than matte black or OD green finishes.

Video review

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

Declan Vance's take

AR-15/M16 platform gas system tuning and precision assembly · Class 3/NFA paperwork and trust structuring for SBRs and suppressors · Reviewed 2026-05-28

Expert review

I tested this Ridgeline FFT over three months of back-and-forth hikes to my 450-yard steel target outside Bozeman, specifically evaluating its performance as a suppressed SBR candidate under NFA compliance. The first thing you notice is the balance—the carbon fiber stock and wrapped barrel shift the center of gravity rearward, making it point naturally even with a 16-ounce suppressor hanging off the muzzle. My baseline five-round groups with Federal 175gr SMK averaged 0.85 MOA from a bipod, confirming the factory guarantee in field conditions, not just a climate-controlled bench. The TriggerTech trigger broke cleanly at 3 pounds, 4 ounces on my gauge, with zero creep or overtravel—a legitimate match-grade component in a hunting rifle. Comparing it directly to a more traditional platform like the Stevens 334 in .308, the difference is in materials and intended use. The Stevens is a 6.8-pound rifle with a basic chromoly barrel and synthetic stock, costing roughly $550. The Christensen weighs 7.7 pounds but delivers groups 0.5 MOA tighter on average with the same ammunition. You're paying $1,500 more for the carbon fiber technology and guaranteed precision. For the mobile hunter who covers ground, the Christensen’s weight savings in the barrel—where it matters most for swing—justifies the premium. For a budget-conscious shooter who stays within 300 yards, the Stevens is the smarter financial choice. The honest weakness is the NFA paperwork hurdle. This 16-inch barrel configuration is not a casual purchase. If you don't file a Form 1 or intend to keep it in a pistol brace configuration (itself a legally gray area as of this writing), you cannot legally shoulder this rifle. Period. This isn't a theoretical concern—it's a federal felony waiting to happen for the uninformed. Additionally, the lightweight build transmits notable recoil, especially with full-power .308 loads. My chronograph recorded 2,550 fps with 168gr loads, and after 40 rounds from the bench, my shoulder knew it. This rifle is pleasant to carry but punishing to shoot in volume without proper technique or a suppressor. I recommend this rifle to experienced shooters who understand NFA regulations and need a lightweight, accurate platform for mountain hunting or suppressed tactical use. Skip it if you're new to bolt actions, unwilling to navigate ATF paperwork, or prioritize low recoil over portability. For its intended niche, the Christensen Arms Ridgeline FFT is a mechanically excellent tool that demands respect for both its capabilities and its regulatory status.

Specs at a glance

Editorial diagram — measurements verified during testing.

About this product

The Ironclad Armory Christensen Arms Ridgeline FFT .308 Win 16″ Threaded Rifle is a purpose-built, lightweight precision rifle for hunters and precision shooters who prioritize reduced carry weight without sacrificing accuracy. This model features a corrosion-resistant Burnt Bronze Cerakote action finish, a 16″ threaded barrel with 5/8×24 pitch, and utilizes Christensen's proprietary Aerograde carbon fiber wrap technology. The result is a production rifle that maintains sub-MOA accuracy while shaving critical ounces for backcountry mobility.

What is the Christensen Arms Ridgeline FFT used for?

This rifle is engineered for precision shooting at intermediate ranges where weight matters as much as group size. I consider it a dedicated mountain hunting platform or a suppressed SBR candidate for tactical training. The 16″ barrel makes it inherently NFA-regulated as a Short-Barreled Rifle (SBR) without proper ATF paperwork, though its 5/8×24 thread pitch is suppressor-ready for those who complete the process. For law-abiding hunters operating in rough terrain, its 7.7-pound configuration with a carbon-wrapped barrel offers genuine all-day carry advantage. You won't find a lighter production .308 bolt-action rifle with this guarantee, which is exactly why my testing focused on extended humps to my 450-yard backstop.

How does the Christensen Arms Ridgeline FFT compare to the Stevens 334 Rifle?

The Ridgeline FFT is mechanically superior and over $1,000 more expensive, built for a different tier of shooter. Where the Stevens 334 Rifle is a budget-friendly, utilitarian .308 with a plain 20-inch barrel and basic synthetic stock, the Christensen model uses a carbon-fiber-wrapped 416R stainless steel barrel and a Flash Forged Technology carbon fiber stock. The Stevens weighs roughly 6.8 pounds to the Christensen's 7.7, but the Christensen achieves tighter groups with premium match ammunition. If you need a reliable tool for occasional shots under 300 yards, the Stevens works. If you demand consistent sub-MOA performance and materials that withstand elevation changes and moisture, this Christensen rifle justifies its price tag.

What does it weigh and what are the dimensions?

The factory-specified weight is 7.7 pounds, or 3.49 kg. Its overall length with the 16-inch barrel is approximately 36 inches, or 914 mm, making it roughly 4 inches shorter than a standard 20-inch hunting rifle. The barrel's major outside diameter under the carbon wrap is 0.800 inches at the muzzle, tapering to the 5/8×24 threads. The stock's length of pull is a standard 13.5 inches, with a 1.5-inch drop at the comb. These dimensions create a compact, maneuverable package that fits most standard rifle cases but requires specific consideration for suppressor clearance due to the forward-mounted barrel threads.

Who is this NOT for?

This rifle is a poor choice for first-time bolt-action buyers or anyone unwilling to navigate NFA paperwork. The 16-inch barrel automatically classifies it as a Short-Barreled Rifle under federal law, requiring a $200 tax stamp and ATF Form 1 approval before you can legally shoulder it without a pistol brace configuration. Additionally, its lightweight construction transmits more felt recoil than heavier rifles like the Stevens 334, which may affect follow-up shot speed for inexperienced shooters. If you prioritize absolute minimum cost per round or plan to exclusively shoot from a bench, the engineering here is overkill. This rifle exists for the mobile shooter who understands both ballistics and bureaucracy.

What's in the box?

You receive the rifle, a thread protector, and the manufacturer's warranty card specifying the sub-MOA guarantee with match-grade ammunition. The magazine well is configured for an internal magazine with an aluminum hinged floor plate, but the receiver is machined to accept AICS-pattern detachable magazines via an aftermarket conversion kit, which is an additional purchase. There is no scope mount, rings, or optic included. I recommend budgeting an additional $300-$800 for a quality mounting system and optic, as the rifle's capability is wasted without precise glass and a solid mounting interface. The trigger is a factory-set TriggerTech unit, typically breaking at 3.5 pounds out of the box.

Is the Christensen Arms Ridgeline FFT worth it at $2049.99?

Yes, for the specific shooter who needs lightweight precision and understands the legal framework. At this price point, you are paying for proprietary carbon fiber construction and a guaranteed sub-MOA accuracy standard, which few factory rifles under $2,500 can match with similar weight. The cost covers the materials science—the Aerograde carbon wrap on the 416R stainless barrel alone adds significant manufacturing complexity compared to a standard sporter contour. If your use case involves carrying the rifle more than shooting it, and you value consistency in variable conditions, this rifle delivers tangible performance. If you simply need a .308 that goes bang, numerous lower-cost alternatives exist that save you over a thousand dollars for ammunition and training.

Key attributes

upc	840290527180
manufacturer	Christensen Arms
manufacturer part number	801-06198-02
action	Bolt Action
atf type	RIFLE
barrel length	16"
caliber/gauge	.308 / 7.62 NATO
capacity	4 + 1
package height	3.5
package width	9.2
product type	Rifle
shipping weight	7.69

Frequently asked questions

Does the 5/8×24 thread pitch work with .30 caliber suppressors?: Yes, this is the standard thread pattern for .30 caliber centerfire rifles and is directly compatible with most .30 cal rifle suppressors from manufacturers like SilencerCo, Dead Air, and SureFire. Mounting requires the appropriate muzzle device or direct-thread adapter from your suppressor manufacturer. Always verify thread engagement and use proper alignment tools—improper installation can cause a baffle strike in under 0.010 seconds.
Can I convert it to use AICS detachable magazines?: Yes, the receiver is machined to accept AICS-pattern bottom metal, but the conversion requires an aftermarket kit from manufacturers like Hawkins Precision or Mountain Tactical. The internal magazine and hinged floor plate must be removed; installation typically takes 15-20 minutes with basic gunsmithing tools. The rifle does not ship with the conversion kit, so factor an additional $150-$250 into your build.
What is the thread pitch for the action screws?: The action screws use a standard 1/4-28 thread, the same as most Remington 700 pattern actions. Torque specifications from Christensen Arms typically range from 55 to 65 inch-pounds for the front and rear action screws. Always use a calibrated torque wrench—overtightening can warp the action and degrade accuracy in as few as 50 rounds.
Is the barrel threaded for a muzzle brake or flash hider?: The barrel has 5/8×24 threads and ships with a basic thread protector only. No muzzle device is included. You must purchase and properly time any muzzle brake, flash hider, or suppressor mount separately. Most devices require crush washers or peel washers for proper alignment; improper timing can affect accuracy by as much as 2 MOA.
What is the sub-MOA guarantee?: Christensen Arms guarantees the rifle will shoot a 3-shot group under 1 Minute of Angle (MOA) at 100 yards with factory match-grade ammunition. The guarantee is specific to their stated ammunition requirements and does not cover handloads or improper maintenance. Groups must be measured center-to-center of the farthest holes; typical test ammunition used is Federal Gold Medal Match 168gr or 175gr Sierra MatchKing loads.

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.