7mm-08 Semi Auto Rifle — CM10 Black Tungsten
The 7mm-08 Semi Auto Rifle from Chattahoochee Munitions brings 7mm-08 Remington to the CM10 large-frame semi-automatic platform. This Black Tungsten configuration features an 18-inch 416R stainless steel barrel, precision-machined billet receivers, a TriggerTech Duty trigger, and a rifle-length gas system with a Superlative Arms adjustable gas block.
Part of Variant Valley, this complete rifle combines Black Tungsten receivers, handguard, and receiver extension with black B5 Systems furniture. The barrel receives a contrasting Tactical Grey Cerakote finish.
For additional cartridge context, explore our 308 Winchester Cartridge Family guide, then return to Variant Valley to compare related CM configurations.
7mm-08 Semi Auto Rifle Features
CM manufactures firearms across both bolt-action and semi-automatic platforms, including less mainstream chamberings. The CM10 reflects that experience through its receiver configuration, component selection, and adjustable gas and buffer systems.
This 7mm-08 Semi Auto Rifle includes ambidextrous controls, a 15-inch M-LOK handguard, and an adjustable B5 Systems Bravo stock. Its component package provides a consistent CM10 layout for customers seeking an alternative chambering in a familiar large-frame AR platform.
CM10 Upper and Lower Receivers
- Receiver configuration: SR25 pattern with DPMS High Profile specifications
- Barrel nut threads: 16 TPI
- Construction: CNC-machined 7075-T6 billet aluminum
- Lightening cuts around the fire-control area and magazine well
- Upper receiver lightening cuts with no forward assist
- Pictogram-style Fire/Safe markings on both sides
- Integral trigger guard
- Machined magazine well with a wide flare
- Finish: Black Tungsten Cerakote
Lower Receiver Components and Trigger
- CM ambidextrous safety
- CM ambidextrous magazine release
- CM10 pivot and takedown pins
- CM10 ambidextrous bolt release
- B5 Systems black pistol grip
- Trigger: TriggerTech Duty
- Trigger options: Single-stage straight, single-stage curved, or two-stage straight
- Total trigger pull weight: 3.5 lb for all options
Stock and Receiver Extension
- B5 Systems Bravo stock — black
- CM mil-spec receiver extension — Black Tungsten Cerakote
- QD endplate
- Odin adjustable AR10 buffer
CM10 Bolt Carrier Group
- 9310 steel bolt
- High-pressure-tested bolt
- Magnetic-particle-inspected bolt
- Shot-peened bolt
- Nitride-coated bolt, carrier, and gas key
- Gas key hardened to USGI specifications
- Grade 8 hardened gas-key fasteners, staked per mil-spec
- Tool steel extractor
- T.E.A. extractor spring
- Black extractor insert
- Mil-spec Crane O-ring
Charging Handle and Gas System
- CM10 ambidextrous charging handle — 7075 aluminum
- CM rifle-length gas tube — Melonite finish
- Superlative Arms .750-inch adjustable gas block — Melonite finish
The rifle-length gas system and adjustable gas block are paired with the CM10 Bolt Carrier Group and an Odin adjustable buffer. These components provide adjustment capability for the rifle’s operating system.
CM10 LWS Handguard
- Length: 15 inches
- Material: 6061 aluminum
- Finish: Black Tungsten Cerakote
- Dual taper attachment system
- Steel barrel nut
- QD attachment points at the 3 and 9 o’clock positions
- M-LOK attachment slots on the sides and bottom
- Full Picatinny top rail
- B5 Systems black rail covers
7mm-08 Semi Auto Rifle Barrel Specifications
The CM10 uses an 18-inch CM 7mm-08 Remington barrel with 416R stainless steel construction, 5R rifling, and a 1:9 twist rate. Tactical Grey Cerakote completes the barrel exterior.
- Caliber: 7mm-08 Remington
- Barrel length: 18 inches
- Barrel material: 416R stainless steel
- Rifling: 5R
- Twist rate: 1:9
- Muzzle threads: 5/8×24
- Gas journal: .750 inch
- Barrel finish: Tactical Grey Cerakote
Muzzle Device Selections
The rifle is pictured with a SilencerCo ASR muzzle device. Alternative selections may include Rugged, Dead Air KeyMo, Yankee Hill, or Q Cherry Bomb, subject to the options available for this product.
Any selected muzzle device and suppressor must have the appropriate bore clearance and manufacturer approval for 7mm-08 Remington. A matching thread pitch alone does not establish compatibility.
Magazine, Weight, and Dimensions
- Included magazine: One 10-round PMAG 7.62 — black
- Overall length: 35–38.250 inches
- Weight: 7 lb 14 oz with unloaded magazine and no accessories
- Length of pull: 11.875–15.25 inches
The weight and dimensions listed in the shipping tab are for shipping purposes. The firearm measurements are provided above.
Explore Variant Valley and Related Articles
This 7mm-08 Semi Auto Rifle belongs to Variant Valley, your destination for this part of the CM caliber lineup. Use the hub to explore related complete firearms and the cartridge-family guide for additional reading.
- Variant Valley: Explore the hub and related CM configurations.
- 308 Winchester Cartridge Family: Read the broader cartridge-family guide.
- 338 Federal vs. 358 Winchester: Compare two other chamberings represented in Variant Valley.
- CM10 Collection: View additional large-frame semi-automatic configurations.
For more information about the adjustable gas-system component included with this rifle, visit Superlative Arms.
Limited Lifetime Warranty
This rifle includes CM’s limited lifetime warranty, limited to the original purchaser and subject to the warranty terms regarding functional performance and the original firearm configuration.
7mm-08 Semi Auto Rifle FAQ
What barrel does this rifle use?
This configuration uses an 18-inch 416R stainless steel barrel chambered in 7mm-08 Remington, with 5R rifling, a 1:9 twist rate, 5/8×24 muzzle threads, and Tactical Grey Cerakote.
Which trigger options are available?
TriggerTech Duty options include single-stage straight, single-stage curved, and two-stage straight. Each option has a total pull weight of 3.5 lb.
Which bolt carrier group is included?
The rifle includes the CM10 Bolt Carrier Group with a 9310 steel bolt, high-pressure testing, magnetic-particle inspection, and nitride-coated bolt, carrier, and gas key.
Which parts receive Black Tungsten Cerakote?
The upper and lower receivers, 15-inch CM10 LWS handguard, and receiver extension receive Black Tungsten Cerakote. The B5 Systems Bravo stock, pistol grip, and rail covers are black.
What magazine is included?
The rifle includes one black 10-round PMAG 7.62 magazine.
Where can I explore related cartridges and CM configurations?
Read our 308 Winchester Cartridge Family guide, then visit Variant Valley to explore related complete firearms.
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