CM7S 300 Blackout 10″ Lightweight Compact Bolt Action SBR or Pistol – Cobalt Kinetics Green

300 Blackout Deer Hunting Rifle for Compact, Suppressed Field Use

The CM7S 300 Blackout Deer Hunting Rifle is a compact bolt-action firearm manufactured for hunters who value maneuverability, deliberate shot placement and effective suppressed performance. Its 10-inch barrel places this configuration within Chattahoochee Munitions’ preferred 10–10.5-inch performance range for .300 Blackout while preserving the handling advantages of a short firearm.

This complete firearm combines the PVD-coated CM7S action, a Mos-Tek 416R stainless barrel, the billet CM7 chassis and a TriggerTech Rem 700 Primary trigger. Customers may select a pistol configuration with a telescoping Tailhook brace or an SBR configuration with a telescoping buttpad. The selected option determines the firearm’s legal classification.

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

Why Choose a 10-Inch 300 Blackout Deer Hunting Rifle?

A 300 Blackout Deer Hunting Rifle should match the cartridge’s practical strengths. Chattahoochee Munitions positions .300 Blackout primarily as a compact, suppressor-oriented cartridge, particularly with subsonic ammunition. The 10-inch barrel provides a practical balance of powder utilization, stability and overall firearm length without adding unnecessary barrel beyond the cartridge’s most useful operating range.

The manually operated CM7S action also eliminates the cycling variables associated with a semi-automatic firearm. Hunters can select an appropriate subsonic or supersonic hunting load without needing to tune a gas system or buffer assembly. This makes the CM7S especially useful when testing different bullet weights, suppressors and purpose-designed expanding projectiles.

Ammunition selection remains critical. Hunters should choose a projectile engineered to expand or perform at the expected impact velocity, confirm accuracy through their individual firearm and follow all applicable state hunting regulations.

CM7S Action – Full PVD Coated

The CM7S is a steel bolt action with a Remington 700-style short-action footprint. Chattahoochee Munitions manufactures this firearm around a compact three-lug action with a 60-degree bolt throw. Full PVD coating provides increased corrosion resistance and contributes to smooth operation in demanding field conditions.

• 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 for consistent tolerances and smooth cycling
• 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

Mos-Tek 10-Inch 1:5 Twist Barrel

The barrel is central to the purpose of this 300 Blackout Deer Hunting Rifle. Chattahoochee Munitions uses a 10-inch Mos-Tek bolt-action barrel manufactured from 416R stainless steel. Its 1:5 twist rate supports the stability requirements of heavy .300 Blackout projectiles, while 5R rifling and a shouldered crown complete the precision-oriented barrel specification.

• Caliber: .300 AAC Blackout / 300 BLK
• Barrel length: 10 inches
• Barrel manufacturer: Mos-Tek
• Material: 416R stainless steel
• Rifling: 5R
• Twist rate: 1:5
• Crown: Shouldered crown
• Muzzle thread: 5/8×24
• Installation system: Remage barrel nut
• Finish: E100 Blackout Cerakote

TriggerTech Rem 700 Primary Trigger

This firearm includes a TriggerTech Rem 700 Primary trigger in the customer’s choice of a flat or curved trigger lever. TriggerTech’s Frictionless Release Technology provides a crisp break with minimal overtravel. The 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 long service life. Product photographs may show an earlier flat trigger with a removable shoe; current flat triggers no longer use that shoe.

CM7 Billet Chassis

The Cobalt Kinetics Green CM7 chassis gives the 300 Blackout Deer Hunting Rifle a rigid, compact foundation with field-ready mounting and adjustment features. It is machined from a single block of billet aluminum and accepts AICS-pattern magazines.

• Cobalt Kinetics Green Cerakote finish
• Single-piece billet-aluminum construction
• Flared magazine well for AICS-pattern magazines
• Ambidextrous magazine release
• Large trigger guard for gloved operation
• Accepts AR-15 pistol grips without an integrated dovetail
• Modular rear-interface system
• M-LOK-compatible forend
• Dual integrated QD sling sockets
• Full-length bottom ARCA rail

The firearm includes the CM Precision Vertical Crossover Grip developed in collaboration with MK Machining. A CM-vetted magazine should be used for dependable feeding. Explore the recommended 300 Blackout bolt-action magazine.

Pistol or Short-Barreled Rifle Configuration

This 300 Blackout Deer Hunting Rifle is offered with two rear-interface options. Customers must select the configuration appropriate for their intended use and comply with all federal, state and local requirements.

• Pistol: Telescoping Tailhook brace with adjustable cheek riser
• SBR: Telescoping buttpad with adjustable cheek riser
• Finish: Cobalt Kinetics Green and Coyote Cerakote

The SBR configuration requires shipment to an appropriately licensed SOT/FFL and approval under the National Firearms Act before transfer. State hunting laws may also regulate firearm classification, barrel length, magazine capacity and suppressor use.

Suppressor-Ready Bolt-Action Performance

The 5/8×24 muzzle thread accommodates many .30-caliber suppressor mounts and direct-thread suppressors. A suppressor can reduce muzzle report, but it does not make a firearm silent. Hearing protection remains recommended whenever practical.

Because the CM7S is manually operated, suppressor backpressure does not control firearm cycling. This gives the hunter greater flexibility when moving between subsonic and supersonic ammunition. Point of impact, accuracy and terminal performance can still change between loads, so each load should be confirmed before entering the field.

For a deeper examination of barrel length, twist rate, suppressor use and ammunition selection, read the Chattahoochee Munitions 300 Blackout subsonic guide.

Hunting Applications

The compact dimensions of this 300 Blackout Deer Hunting Rifle make it particularly useful in blinds, stands, thick vegetation and other environments where a long barrel can become cumbersome. The short action and telescoping rear assembly also simplify transport while preserving the stability and deliberate operation of a bolt-action platform.

Subsonic ammunition can provide reduced sound and recoil, but its effective hunting use depends heavily on bullet construction, impact velocity, shot placement and distance. Supersonic ammunition provides a different velocity and terminal-performance envelope. Neither category should be treated as universally suitable; hunters must match the load to the game and expected conditions.

Complete Firearm Specifications

• Manufacturer: Chattahoochee Munitions
• Model: CM7S
• Caliber: .300 AAC Blackout / 300 BLK
• Action: Three-lug bolt action
• Barrel length: 10 inches
• Twist rate: 1:5
• Muzzle thread: 5/8×24
• Trigger: TriggerTech Rem 700 Primary, flat or curved
• Chassis: CM7 billet-aluminum chassis
• Magazine pattern: AICS
• Finish: Cobalt Kinetics Green and Coyote Cerakote
• Weight: 6 pounds 2 ounces
• Overall length: 22.50–30.00 inches
• Length of pull: 6.0–13.5 inches

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

Who Is This CM7S For?

This 300 Blackout Deer Hunting Rifle is intended for hunters who want a short, maneuverable firearm with a fast-twist barrel and straightforward suppressor compatibility. It is especially well suited to shooters who prefer the ammunition flexibility, mechanical simplicity and closed-action suppression advantages of a bolt-action firearm.

Frequently Asked Questions

Why does this firearm use a 10-inch barrel?

Chattahoochee Munitions considers 10–10.5 inches the optimal general-purpose barrel range for its .300 Blackout applications. The 10-inch barrel retains compact handling while providing sufficient length for efficient powder utilization in the cartridge’s intended operating envelope.

Why does the barrel use a 1:5 twist rate?

The 1:5 twist provides increased rotational stability for heavy subsonic .300 Blackout projectiles. Ammunition compatibility and projectile stability should still be confirmed before attaching a suppressor.

Can it fire both subsonic and supersonic ammunition?

Yes. The bolt action is not dependent on ammunition-generated gas pressure for cycling. Accuracy, point of impact and terminal behavior will vary by load, so each selected cartridge should be tested independently.

Is a suppressor included?

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

Does this product transfer as a pistol or an SBR?

That depends on the option selected. The pistol configuration uses a Tailhook brace. The SBR configuration uses a buttpad and is subject to applicable NFA transfer requirements.

Is every .300 Blackout load appropriate for deer?

No. Hunters must select ammunition with suitable terminal performance at the anticipated impact velocity and comply with local hunting regulations. Confirm the selected load’s accuracy and point of impact before hunting.

A Purpose-Manufactured CM7S Hunting Firearm

The CM7S 300 Blackout Deer Hunting Rifle combines a fast-twist Mos-Tek barrel, PVD-coated three-lug action, adjustable TriggerTech trigger and compact billet chassis. It is a complete Chattahoochee Munitions firearm manufactured for hunters who want deliberate bolt-action operation, short overall length and practical suppressed performance from the .300 Blackout cartridge.