CM10 7mm-08 Rem 18″ Rifle AR10 Black Tungsten

This is a 7mm-08 Rem AR10 rifle from Chattahoochee Munitions. We have been building in less mainstream calibers since our inception, both in AR and bolt-action platforms. 8.6BLK, 243 Win, 22-250 Rem, 338 Spectre, 400 Legend, 338 Federal, etc. Experience building with various lowers, uppers, and handguards, both in low and high profile, allowed us to weigh all pros and cons and create our perfect version of the rifle.

This will be one of the sturdiest-feeling weapons as everything is designed in tight tolerances. All of our rifles are equipped with HIPERFIRE (High Performance Firearms) Triggers; all are 2.5lb single stage Reflex (curved) or Competition (straight with shoe) or X2S Mod3 2-Stage; Reflex is pictured, Odin Adjustable Buffers, and Superlative Arms adjustable gas blocks.

CM10 Upper and Lower Receiver:

• SR25 Pattern though DPMS High Profile specs such as 16TPI barrel nut, barrel extension and BCG compatibility

• CNC machined from 7075-T6 billet aluminum

• Lightweight FCG Faces and Mag-well

• Lightweight Cuts on Upper with no Forward Assist

• Pictogram style Fire/Safe engravings on both sides

• Integral trigger guard for added overall strength

• Machined (not broached) Mag-well with wide flare

• Black Tungsten Cerakote

Lower Parts:

• CM Ambi Safety

• CM Ambi Mag Release

• CM10 Pivot and Takedown Pins

• HIPERFIRE 2.5lb single stage Reflex (curved) or Competition (straight with shoe) Trigger and pins, or Hiperfire X2S Mod3 2-Stage – pictured with Reflex

• CM10 Ambi Bolt Release

• B5 Systems Black Grip

Receiver Extension:

• B5 Systems Bravo Stock – Black

• CM Milspec Buffer Tube – Black Tungsten Cerakote

• QD Endplate

• Odin Adjustable Buffer AR10

Upper:

• CM10 Low Mass Bolt Carrier Group

  • 9310 steel HPT Bolt (High Pressure Tested/ Proof)

  • MPI Bolt (Magnetic Particle Inspected)

  • Shot Peened Bolt

  • Nitride-coated bolt

  • Nitride-coated Carrier

  • Nitride-coated Gas Key

  • Gas Key Hardened to USGI Specifications

  • Grade 8 Hardened Fasteners

  • Key Staked Per Mil-Spec

  • Tool Steel Extractor

  • T.E.A Extractor Spring

  • Black Extractor Insert

  • Mil-Spec Crane O-Ring

• CM10 Ambi Charging Handle – 7075 Aluminum

• CM Rifle Length Gas Tube – Melonite

• Superlative Arms .750 Adjustable Gas Block – Melonite

• CM10 LWS 15″ MLOK Handguard – Black Tungsten Cerakote

  • 6061 Aluminum

  • Dual Taper Attachment System

  • Steel Barrel Nut

  • QD Attachment at 3 and 9 o’clock positions

  • MLOK attachment on sides and bottom

  • Full Picatinny Top Rail

• B5 Systems Black Rail Covers

• Pictured with Silencerco ASR muzzle device; can sub for Rugged, Dead Air Keymo, Yankee Hill, Q Cherry Bomb

Barrel: 7mm-08 Rem Rifle

• CM 7mm-08 Rem 18″ Barrel

• 416R Stainless Steel

• 1:9 Twist

• 5/8×24 thread pitch

• .750 gas journal

• 5R Rifling

• Tactical Grey Cerakote

Magazine:

• 1x10rd PMAG 7.62 Black

OAL: 35″ to 38.250″

OAW: 7lb/14oz with unloaded magazine and no accessories (Weight and dimensions on other tab are for shipping purposes)

LOP: 11.875″ – 15.25″

Warranty – Limited Lifetime

• Limited to original purchaser

• Limited regarding functional performance

• Limited regarding original configuration

Why Choose the Chattahoochee Munitions CM10 7mm-08 Rem Rifle?

Finding a semi-automatic hunting rifle that seamlessly blends long-range flat trajectories, manageable recoil, and modern modularity can be a challenge. The 7mm-08 Rem chambering bridges this gap masterfully. Built on our ultra-precise CM10 AR10 platform, this 18″ rifle transforms a beloved bolt-action cartridge into a fast-cycling, exceptionally accurate, semi-automatic precision machine.

Whether you are targeting whitetail across open fields, tracking big game in dense woods, or looking for a soft-shooting alternative to the traditional .308 Winchester, the 7mm-08 Rem configuration offers unmatched ballistic efficiency, lower felt recoil, and terminal downrange energy.

Uncompromising Engineering & Precision Build Quality

Every CM10 7mm-08 Rem rifle is built with meticulous attention to detail, utilizing ultra-tight machining tolerances to eliminate upper-to-lower wobble and maximize accuracy potential:

• 18″ 416R Stainless Steel Barrel: Featuring 5R rifling and a 1:9 twist rate, this barrel stabilizes a wide variety of medium-to-heavy 7mm projectiles. The Tactical Grey Cerakote finish provides long-lasting corrosion and abrasion protection.

• Superlative Arms Adjustable Gas Block: Semi-auto big-bore rifles require precise gas management. The Superlative Arms block features patented bleed-off technology, allowing you to fine-tune cycling for supersonic hunting ammo or suppressed shooting while minimizing dirty gas blowback.

• Match-Grade HIPERFIRE Trigger System: Choose between the 2.5lb Reflex single-stage, Competition straight-shoe single-stage, or the X2S Mod3 2-stage trigger. Each option delivers a crisp break, minimal overtravel, and ultra-fast reset times.

• Odin Adjustable AR10 Buffer: Paired with our low-mass BCG, the adjustable buffer system softens impulse recoil, keeping your sight picture steady for lightning-fast follow-up shots.

Comprehensive Feature Breakdown

Component / Spec	Details & Manufacturing Standards
Caliber	7mm-08 Remington (7mm-08 Rem)
Platform	CM10 / SR25 Pattern (DPMS High Profile Spec)
Barrel	18″ 416R Stainless Steel with 5R Rifling, 1:9 Twist
Muzzle Thread	5/8×24 Thread Pitch (Selectable Brakes/Flash Hiders)
Receiver Material	CNC Machined 7075-T6 Billet Aluminum
Finish	Premium Black Tungsten Cerakote (Upper/Lower/Handguard)
Trigger	2.5lb HIPERFIRE (Reflex, Competition, or X2S Mod3 2-Stage)
Handguard	15″ CM10 LWS M-LOK Handguard with Full Picatinny Top Rail
Gas System	Rifle Length with Superlative Arms Adjustable Gas Block
Overall Weight	7 lbs 14 oz (Unloaded without optics)

Ballistic Superiority: The 7mm-08 Rem Advantage

The 7mm-08 Rem cartridge has long been praised by big-game hunters for its high ballistic coefficient (BC) projectiles, flat flight path, and impressive energy retention. Derived from necking down a .308 Winchester case to hold .284 caliber (7mm) bullets, it yields faster velocities and flatter trajectories than a standard .308 while delivering significantly less recoil than a .270 Win or .30-06.

When combined with Chattahoochee Munitions’ AR10 platform, the 7mm-08 Rem becomes an exceptionally capable tool for medium-to-large game, long-range steel targets, and precision shooting disciplines where fast follow-up shots matter most.

Customization & Factory Muzzle Options

Tailor your rifle directly from the workshop to fit your preferred shooting style:

1. Precision Trigger Profiles: Select from the curved Reflex single-stage, straight Competition shoe, or the crisp X2S Mod3 two-stage trigger for your preferred break and control.

2. Suppressor-Host Muzzle Options: Equip your 7mm-08 Rem rifle with top-tier mounting systems including the SilencerCo ASR Brake, Dead Air Keymo Brake or Flash Hider, Q Cherry Bomb, Rugged Brake/Flash Hider, or Yankee Hill Brake.

3. Ergonomic Furniture: Outfitted standard with a B5 Systems Bravo Stock, B5 Grip, and B5 M-LOK Rail Covers for an ultra-comfortable, non-slip grip in any shooting environment.

Helpful Links & Related Products

• Explore AR10 Platforms: Check out our alternative chamberings in the CM10 Lineup, including the popular CM10 308 Win Rifle and CM10 243 Win Rifle.

• Compact Calibers: Looking for shorter platforms? Browse our full collection of CM15 AR15 Firearms.

• Ammunition & Gear: Learn more about 7mm bullet specifications at Hornady Manufacturing or explore suppressor options for your rifle at the Silencer Shop Network.

Frequently Asked Questions (FAQ)

1. What makes the 7mm-08 Rem a great choice for an AR10 rifle?

The 7mm-08 Rem offers superior ballistic coefficient and sectional density compared to standard .308 Winchester rounds. It delivers flatter trajectories, less wind drift, and noticeably reduced recoil—making semi-automatic follow-up shots faster and more accurate.

2. Are magazines for the 7mm-08 Rem hard to find?

No! Because the 7mm-08 Rem uses the parent case of the .308 Winchester, it feeds perfectly out of standard AR10 / SR25 7.62x51mm magazines, including the included 10-round Magpul PMAG.

3. Can I shoot a suppressor on this 7mm-08 Rem rifle?

Absolutely. The rifle comes equipped with an 18″ barrel threaded in standard 5/8×24 and features a Superlative Arms adjustable gas block. You can select your choice of popular suppressor adapters (SilencerCo, Dead Air, Q, Rugged, YHM) directly at checkout.

4. What pattern upper and lower does this rifle use?

The CM10 platform is built around the popular SR25 pattern while following DPMS High Profile specifications for barrel nut threads (16TPI), barrel extensions, and bolt carrier groups for maximum industry compatibility.

5. What is the lead time for custom-built rifles?

Current manufacturing lead time for custom build orders like the CM10 7mm-08 Rem is approximately 2 weeks from purchase date to shipment to your transferring FFL dealer.