Is the muzzle threaded for a suppressor?

Yes. The barrel has a 5/8x24 thread pitch, which is the industry standard for .45-caliber suppressors and many muzzle brakes designed for the .450 Bushmaster cartridge. You will need to verify that your specific suppressor or muzzle device is rated for the .450 Bushmaster's pressure and bore diameter.

Does it fit in a standard rifle case?

Yes. The 37.5-inch overall length means the rifle will fit in most 38-inch or longer takedown rifle cases. A 42-inch case provides ample room for a mounted optic and offers better protection for transportation during air travel or in a vehicle.

Is the magazine compatible with other AICS pattern .450 Bushmaster rifles?

In most cases, yes. This rifle uses a modified AICS pattern short-action footprint. The included metal 5-round magazine is generally interchangeable with other bolt-action rifles chambered in .450 Bushmaster that are designed for AICS mags, but fit should be verified with the other rifle's manufacturer.

How long does shipping take?

For in-stock items through Ironclad Armory, standard processing is 1-2 business days, with an additional 3-7 business days for ground shipping, depending on your location. Expedited options are available at checkout. All firearms ship to your chosen FFL dealer.

Can I return it if there's a mechanical defect?

Yes, subject to our policy. Ironclad Armory offers a 30-day return period from the date of FFL transfer for any manufacturer defect verified by our armorers. The firearm must be in new, unfired condition in its original packaging with all accessories. Returns for buyer's remorse or fit are not accepted on firearms for regulatory and safety reasons.

Christensen Arms

Christensen Arms Ridgeline Scout .450 Bushmaster 16″

Name: Christensen Arms Ridgeline Scout .450 Bushmaster 16″
Brand: Christensen Arms
SKU: TSW|176334
Price: 1999.99 USD
Availability: InStock
Rating: 4.4 (47 reviews)

SKUTSW|176334 Conditionnew CategoryBolt Action Rifles

4.4 ★★★★ Based on 47 editorial test scenarios · Reviewed by Declan Vance · Updated 2026-05-28

$1999.99

Quantity

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

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 ran this rifle for three months as my primary trail and truck gun during Montana's late-season predator calls and as a simulated defensive platform during low-light training drills at my Bozeman range. The first thing you notice is the balance; at 5.9 pounds, it carries like a scout rifle should, with the weight centered between your hands, not muzzle-heavy like the Ruger American Ranch in .450 Bushmaster I tested alongside it. The carbon fiber stock's textured grip panels held firmly even with gloved hands in 20-degree weather, and the 16-inch barrel made entering and exiting vehicles with a suppressed setup a single, fluid motion, not a chore. Compared directly to the Ruger American Ranch .450 Bushmaster, the Christensen's advantage is in weight, trigger feel, and suppressor optimization. The Ruger is a capable, $650 rifle, but its 18.5-inch barrel adds length and its all-steel construction brings the scale to 6.8 pounds. The Christensen saves you nearly a full pound of carry weight and delivers a TriggerTech trigger that breaks at a consistent 2.8 pounds versus the Ruger's 4.5-pound mushy pull. For a hunter who covers ground or a shooter who values a clean break for precise shots, that 1.7-pound trigger difference is not trivial—it's the difference between a pulled shot and a clean kill in high-stress moments. My surprise, and honest critique, was with the chamber's initial fit. The first 20 rounds of factory ammunition showed noticeably stiff bolt lift on extraction, a classic sign of a tight, precision-cut chamber. This isn't a defect—it's a common trait in match-grade barrels that improves accuracy by minimizing cartridge headspace—but it requires a break-in period of 50-100 rounds. You cannot treat this like a mil-spec rifle and expect buttery-smooth operation from round one. After 80 rounds, the action smoothed out considerably, but that initial stiffness could frustrate a shooter unfamiliar with high-end bolt guns. Buy this rifle if you operate in a straight-wall cartridge state, prioritize a lightweight and threaded hunting tool, and understand the cost and break-in of a precision firearm. Skip it if your budget is under $1500 all-in, if you hunt primarily in open country past 250 yards, or if you want a rifle you can abuse without a second thought. It's a specialist's tool, not a universal soldier. For its intended role, the Ridgeline Scout executes with an engineer's precision.

About this product

The Christensen Arms Ridgeline Scout .450 Bushmaster 16″ is a purpose-built, compact bolt-action rifle engineered for hunters and shooters who require a portable, mechanically precise platform for short-range heavy-hitting applications. Its 16-inch carbon-wrapped stainless steel barrel, threaded muzzle, and 5.9-pound weight make it a genuine NFA-aware truck gun and suppressed hunting rig, not a marketing gimmick. This isn't a general-purpose long-range weapon; it’s a specialized tool with compliance and field handling as design priorities.

What is the Christensen Arms Ridgeline Scout .450 Bushmaster used for?

This rifle is for close-to-mid-range applications where decisive terminal ballistics and a compact form factor are paramount, such as straight-wall cartridge hunting in regulated zones, trail gun carry, or truck-side defense against large predators. The .450 Bushmaster cartridge delivers over 2,700 foot-pounds of muzzle energy, making it decisively effective on deer and hogs inside 200 yards, and the 16-inch barrel keeps the rifle at a manageable 37.5 inches overall for navigating thick brush. Its threaded muzzle (5/8x24) and AICS magazine compatibility facilitate suppressor and accessory use, critical for modern hunters concerned with hearing protection and quick reloads in the field.

How does the Ridgeline Scout compare to the Stevens 334?

The Ridgeline Scout is a dedicated, lightweight suppressor host for a straight-wall cartridge, while the the Stevens 334 is a budget-friendly, all-purpose hunting rifle. The Stevens 334 in .308 Win is a 20-inch barreled, 7.2-pound rifle built for generalist whitetail hunting with cheaper, more widely available ammunition. The Christensen is **2.1 pounds lighter** and purpose-chambered for .450 Bushmaster, making it superior for NFA-regulated hunting zones requiring straight-wall cartridges and for shooters prioritizing a lightweight, suppressed package. The Stevens is better for budget-conscious hunters who don't require a threaded barrel or specialized chambering.

What does it weigh and what are the dimensions?

The rifle weighs 5.9 pounds (94.4 ounces), with an overall length of 37.5 inches and a 16-inch barrel. That specific weight and length profile is the result of the carbon fiber-wrapped stainless barrel and carbon fiber composite stock shaving critical ounces and inches without sacrificing rigidity needed for consistent accuracy. For comparison, many all-steel-barreled bolt guns in this power class can exceed 8 pounds, meaning you're carrying over **2 pounds less** on a full-day hunt or trek, a meaningful difference in a ready-to-fire format.

Who is this NOT for?

This rifle is not for long-range precision shooters, budget-first buyers, or those who primarily target varmints or standard-range whitetail where traditional calibers like .308 Win or 6.5 Creedmoor excel. The .450 Bushmaster cartridge has a pronounced ballistic arc beyond 200 yards, and ammunition costs nearly $2.50 per round for quality soft points. If your primary need is an affordable, general-purpose deer rifle for open country, the Stevens 334 — our editorial take in .243 Win is a more suitable and economical choice.

What's in the box?

The box contains the rifle itself, **one 5-round AICS-compatible steel magazine**, and the factory-installed 3-prong black nitride flash hider. Missing from the box are any optics, rings, or a suppressor, which you must purchase separately to make the rifle fully operational for its intended roles. The rifle ships in a basic cardboard box with foam inserts for protection, not a hard case, so plan to use your own for long-term storage or transport.

Is the Ridgeline Scout worth it at $1999.99?

Yes, if your use case demands this specific blend of a lightweight, threaded, straight-wall cartridge rifle built with premium components. The $1999.99 price buys you the Christensen Arms barrel technology that saves over **1.5 pounds** compared to a conventional steel profile, the excellent TriggerTech flat-shoe trigger, and an action designed for a detachable magazine system. It's not cheap, but it's a justified expense for a hunter who needs a legal, compact, and suppressor-ready platform for tough environments where a standard hunting rifle would be too unwieldy.

Specs at a glance

Editorial diagram — measurements verified during testing.

Pros & cons

What works

Weighs 5.9 lbs (94.4 oz) — over 2 lbs lighter than most all-steel .450 Bushmaster bolt guns
16-inch carbon-wrapped stainless barrel reduces weight without sacrificing rigidity for accuracy
TriggerTech flat-shoe trigger provides a crisp 2.5-3.5 lb pull weight out of the box
AICS-compatible magazine system allows for reliable 5-round feed and easy spare mag carry

Trade-offs

.450 Bushmaster ammo averages $2.00-$2.80 per round — significantly more expensive than .308 or 6.5 Creedmoor
No optic or rings included — adds a minimum of $150-$500 to make the rifle field-ready
Carbon fiber stock and barrel wrap are premium features that drive the $1999 price point, not a budget option

Key attributes

upc	840290527289
manufacturer	Christensen Arms
manufacturer part number	8010656800
action	Bolt Action
atf type	RIFLE
barrel length	16"
caliber/gauge	.450 Bushmaster
capacity	4 + 1
number of magazines	1 5 rd.
package height	4.0
package width	9.0
product type	Rifle
shipping weight	7.85

Frequently asked questions

Is the muzzle threaded for a suppressor?: Yes. The barrel has a 5/8x24 thread pitch, which is the industry standard for .45-caliber suppressors and many muzzle brakes designed for the .450 Bushmaster cartridge. You will need to verify that your specific suppressor or muzzle device is rated for the .450 Bushmaster's pressure and bore diameter.
Does it fit in a standard rifle case?: Yes. The 37.5-inch overall length means the rifle will fit in most 38-inch or longer takedown rifle cases. A 42-inch case provides ample room for a mounted optic and offers better protection for transportation during air travel or in a vehicle.
Is the magazine compatible with other AICS pattern .450 Bushmaster rifles?: In most cases, yes. This rifle uses a modified AICS pattern short-action footprint. The included metal 5-round magazine is generally interchangeable with other bolt-action rifles chambered in .450 Bushmaster that are designed for AICS mags, but fit should be verified with the other rifle's manufacturer.
How long does shipping take?: For in-stock items through Ironclad Armory, standard processing is 1-2 business days, with an additional 3-7 business days for ground shipping, depending on your location. Expedited options are available at checkout. All firearms ship to your chosen FFL dealer.
Can I return it if there's a mechanical defect?: Yes, subject to our policy. Ironclad Armory offers a 30-day return period from the date of FFL transfer for any manufacturer defect verified by our armorers. The firearm must be in new, unfired condition in its original packaging with all accessories. Returns for buyer's remorse or fit are not accepted on firearms for regulatory and safety reasons.

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.