CM7S 300 Blackout 12.5″ Bolt Action Short Barrel Rifle – WOOX

300 Blackout Hunting Rifle with WOOX Walnut Furniture

The CM7S 300 Blackout Hunting Rifle combines a modern three-lug bolt action with genuine walnut WOOX furniture and a 12.5-inch, 1:5 twist Mos-Tek barrel. It is manufactured for hunters who want the ammunition flexibility and suppressor compatibility of .300 Blackout in a stable, adjustable bolt-action firearm.

This complete Chattahoochee Munitions rifle uses the PVD-coated CM7S action, TriggerTech Rem 700 Primary trigger and a WOOX furniture system consisting of an Exactus stock, Furiosa forend and aluminum monocore configured for the CM7S. The result blends traditional walnut with the rigidity, adjustability and mounting capability expected from a modern chassis rifle.

This firearm is configured as a short-barreled rifle. It must be shipped to an appropriately licensed SOT/FFL and transferred following the required National Firearms Act approval process.

Explore the complete Chattahoochee Munitions Sector 300 ecosystem for related .300 Blackout firearms, magazines and technical resources.

Why Choose a 300 Blackout Hunting Rifle?

A 300 Blackout Hunting Rifle provides hunters with access to both subsonic and supersonic ammunition in a compact short-action firearm. The CM7S bolt action does not rely on ammunition-generated gas pressure to cycle, allowing the shooter to evaluate different compatible loads without adjusting a gas block or buffer system.

Subsonic ammunition can reduce the firearm’s sound signature when paired with an appropriate suppressor, while supersonic ammunition offers a different velocity, trajectory and terminal-performance envelope. Hunters must select a projectile designed to perform at the anticipated impact velocity, confirm accuracy and point of impact, and comply with all applicable hunting regulations.

The 12.5-inch barrel is not presented as necessary for additional .300 Blackout velocity beyond CM’s preferred 10–10.5-inch performance range. In this WOOX configuration, the additional barrel length complements the proportions and balance of the full-size walnut furniture while still maintaining a compact SBR profile.

CM7S Three-Lug Bolt Action

The CM7S is a steel action based on the Remington 700-style short-action footprint. Its three-lug bolt produces a 60-degree throw, providing efficient operation and additional clearance beneath an installed optic. Wire EDM raceways contribute to consistent tolerances and smooth bolt movement.

• Remington 700-style footprint
• Three-lug action with a 60-degree bolt throw
• M16-style extractor
• One-piece bolt with a 0.718-inch bolt-body diameter
• Wire EDM raceways
• Integrated 0.300-inch recoil lug
• Pinned 20 MOA Picatinny optics rail
• Large ejection port
• Lightened action body
• Approximately 25-ounce action weight
• 0.062-inch firing pin compatible with small-rifle-primer brass
• Tool-less fire-control removal
• Accepts Remington 700-style triggers
• 1-1/16-inch-16 barrel thread
• Side bolt-stop release
• Oversized bolt knob
• Spiral-fluted bolt
• Full PVD coating for corrosion resistance and smooth operation

12.5-Inch Mos-Tek Barrel

The barrel gives this 300 Blackout Hunting Rifle the stability and suppressor compatibility required for CM’s intended use. Chattahoochee Munitions uses a 12.5-inch Mos-Tek bolt-action barrel manufactured from 416R stainless steel and protected by E100 Blackout Cerakote.

Its 1:5 twist provides increased rotational stability for long, heavy subsonic projectiles. This is especially valuable when using .300 Blackout as a suppressed hunting cartridge. Every selected load should still be tested for accuracy and projectile stability before a suppressor is attached.

• Caliber: .300 AAC Blackout / 300 BLK
• Barrel length: 12.5 inches
• Barrel manufacturer: Mos-Tek
• Material: 416R stainless steel
• Rifling: 5R
• Twist rate: 1:5
• Crown: Shouldered crown
• Muzzle thread: 5/8×24
• Barrel installation: Remage barrel nut
• Finish: E100 Blackout Cerakote

WOOX Exactus Stock and Furiosa Forend

The WOOX furniture distinguishes this 300 Blackout Hunting Rifle from the chassis-based CM7S models. Genuine walnut provides the warmth and appearance of a traditional hunting rifle, while the internal aluminum structure and adjustable stock provide the stability and fit of a modern precision chassis.

Chattahoochee Munitions configures the WOOX system around the CM7S action using an Exactus walnut stock, Furiosa walnut forend and M5-pattern aluminum monocore.

WOOX Exactus Stock

• Genuine walnut construction
• Adjustable cheek riser
• Adjustable buttpad height
• Adjustable length of pull
• Bottom Picatinny rail
• QD sling mount

WOOX Furiosa Forend

• Genuine walnut exterior
• M-LOK interfaces at the 3, 6 and 9 o’clock positions
• Modern accessory mounting without sacrificing the appearance of walnut furniture

Aluminum Monocore

• Configured for the CM7S action
• M5-pattern bottom metal
• AICS-pattern magazine compatibility
• Rigid connection between the action, stock and forend

TriggerTech Rem 700 Primary Trigger

The rifle includes a TriggerTech Rem 700 Primary trigger with a flat or curved trigger-lever option. TriggerTech’s Frictionless Release Technology provides a crisp break and minimal overtravel.

Pull weight is externally adjustable from 1.5 to 4.0 pounds in one-ounce increments. Hardened 440C stainless-steel internal components provide corrosion resistance and extended service life. Product photographs may depict an earlier flat trigger with a removable shoe; current flat triggers no longer use that shoe.

AICS Magazine System

The M5-pattern bottom metal accepts compatible AICS-pattern magazines. This firearm includes one 10-round Magpul PMAG 10 5.56 AC magazine, which Chattahoochee Munitions has tested and recommends for the CM7S chambered in .300 Blackout.

Additional CM-vetted magazines are available through the 300 Blackout bolt-action magazine page.

Suppressor-Ready Hunting Performance

The 5/8×24 muzzle thread accepts many compatible .30-caliber suppressor mounts, direct-thread suppressors and muzzle devices. Suppressors vary in bore diameter, mounting system, length and weight, so compatibility should be confirmed with the suppressor and mount manufacturers before installation.

An enclosed .30-caliber suppressor is generally the more suitable choice when maximum sound reduction with subsonic .300 Blackout is the priority. The manually operated CM7S does not require suppressor-generated backpressure to function and does not need gas-system tuning when changing ammunition.

This rifle is suppressor-ready but is not an SD configuration. The suppressor attaches forward of the muzzle rather than extending beneath the walnut forend. A suppressor is not included.

Subsonic and Supersonic Hunting Loads

A 300 Blackout Hunting Rifle can use compatible subsonic and supersonic ammunition, but the two categories serve different purposes and should not be treated as interchangeable.

• Subsonic ammunition: Uses heavier projectiles and prioritizes reduced sound when paired with an appropriate suppressor.
• Supersonic ammunition: Provides higher velocity, a different trajectory and a different terminal-performance envelope.

Even different subsonic loads can produce meaningful changes in velocity, accuracy and point of impact. Hunters must choose a projectile designed for reliable terminal performance at the expected impact velocity and confirm its performance through the firearm and suppressor combination that will be used.

Read the CM 300 Blackout subsonic guide for a more detailed discussion of twist rate, barrel length, suppressors and ammunition selection.

Field Handling and Adjustability

This 300 Blackout Hunting Rifle weighs 7 pounds 12 ounces and measures 31.75–32.50 inches in overall length. Its adjustable cheek riser supports consistent alignment behind the optic, while the adjustable buttpad height and length of pull allow the stock to be fitted to the shooter and field clothing.

The M-LOK forend accepts compatible accessories at the 3, 6 and 9 o’clock positions. A bottom Picatinny rail and QD sling mount provide additional support and carrying options. These features make the WOOX configuration suitable for blinds, stands, supported field positions and hunting in dense terrain.

Complete Rifle Specifications

• Manufacturer: Chattahoochee Munitions
• Model: CM7S WOOX
• Caliber: .300 AAC Blackout / 300 BLK
• Classification: Short-barreled rifle
• Action: Three-lug bolt action
• Barrel length: 12.5 inches
• Twist rate: 1:5
• Muzzle thread: 5/8×24
• Trigger: TriggerTech Rem 700 Primary, flat or curved
• Stock: WOOX Exactus walnut stock
• Forend: WOOX Furiosa walnut forend
• Bottom metal: M5 pattern
• Magazine pattern: AICS
• Included magazine: One 10-round Magpul PMAG 10 5.56 AC
• Weight: 7 pounds 12 ounces
• Overall length: 31.75–32.50 inches
• Length of pull: 13.75–14.75 inches
• Warranty: Limited lifetime warranty for the original purchaser, subject to applicable terms

Note: Weight and dimensions displayed in the separate WooCommerce information tab are for shipping purposes. The specifications above describe the firearm.

NFA Transfer Requirements

This firearm has a 12.5-inch barrel and a shoulder stock. It is therefore transferred as a short-barreled rifle. It will ship to the customer’s appropriately licensed SOT/FFL for completion of the required transfer process and collection of the applicable federal tax.

Customers are responsible for compliance with federal, state and local laws. State regulations may independently restrict SBR possession, suppressor possession, hunting methods, magazine capacity or the use of particular firearm configurations.

Frequently Asked Questions

Why use a 12.5-inch barrel on this WOOX rifle?

The 12.5-inch barrel complements the proportions and balance of the full-size WOOX furniture while maintaining a compact SBR configuration. It is not presented as necessary for additional velocity beyond CM’s preferred 10–10.5-inch .300 Blackout range.

Why does the barrel use a 1:5 twist?

The fast 1:5 twist provides increased rotational stability for long, heavy subsonic projectiles. Ammunition should still be tested for accuracy and stability before attaching a suppressor.

Can the rifle use subsonic and supersonic ammunition?

Yes. The CM7S action is manually operated and does not require gas-system changes when switching loads. Accuracy, point of impact, velocity and terminal performance can still vary substantially.

Does the rifle include a suppressor?

No. The barrel is threaded 5/8×24 for compatible suppressor mounts and muzzle devices, but the suppressor is selected separately.

Is this suitable for deer hunting?

A properly configured 300 Blackout Hunting Rifle can be used for deer where permitted, but projectile construction, impact velocity, distance and shot placement are critical. Hunters must select suitable ammunition and follow applicable hunting regulations.

Why choose WOOX furniture?

The WOOX system combines genuine walnut with an aluminum structural core, adjustable stock dimensions and modern accessory interfaces. It provides a traditional field-rifle appearance without giving up contemporary chassis functionality.

Is this rifle subject to NFA requirements?

Yes. The combination of its 12.5-inch barrel and shoulder stock makes this configuration an SBR. It must be transferred through the applicable NFA process.

A Modern Walnut 300 Blackout Hunting Rifle

The CM7S WOOX 300 Blackout Hunting Rifle combines a PVD-coated three-lug action, 12.5-inch 1:5 twist Mos-Tek barrel, TriggerTech Primary trigger and adjustable walnut furniture. It is a complete Chattahoochee Munitions short-barreled rifle manufactured for hunters who want modern precision, suppressor compatibility and traditional walnut in one cohesive firearm.