Chattahoochee Munitions manufactures CM10 AR10 rifles, SBRs and pistols in twelve cartridges: 458 SOCOM XL, 375 Raptor, 8.6 Blackout, 308 Winchester, 6.5 Creedmoor, 7mm-08 Remington, 338 Federal, 358 Winchester, 22 Creedmoor, 22-250 Remington, 6mm Creedmoor and 243 Winchester. The CM10 comes as 8 and 12.5-inch pistols or SBRs and as 16 to 24-inch AR10 rifles, all on 7075-T6 billet receivers, plus the CM10-SD 308 Subsonic AR10. Chattahoochee Munitions also sells CM10 8.6 Blackout barrels and magazines for every CM10 cartridge.
The CM10 is a short-barrel subsonic semi-auto first. Its large frame takes cartridges that are too long for an AR15 magazine, so the 650 gr 458 SOCOM XL, the 400 gr 375 Raptor and heavy 8.6 Blackout bullets run in a 12.5-inch semi-automatic, tuned with an adjustable gas block and buffer to cycle with an enclosed suppressor. The same platform then carries the 308 based and high velocity cartridges in 16 to 24-inch AR10 rifles for hunting, predators and reach.
What Is the CM10?
The CM10 is the Chattahoochee Munitions large-frame semi-automatic, an AR10 on SR25-pattern architecture. Each one pairs CNC-machined 7075-T6 billet receivers with a Superlative Arms adjustable gas block, an adjustable AR10 buffer and a TriggerTech Duty trigger, so the gas system can be set for the ammunition and suppressor you actually use. The 375 Raptor and 458 SOCOM XL models are the CM10 Centerfeed, which feeds long subsonic cartridges from a metal AICS-pattern magazine.
CM10 AR10 Specifications
- Receivers: 7075-T6 billet aluminum, CNC machined, flared magazine well, integral trigger guard, upper without a forward assist
- Patterns: SR25 pattern with DPMS High Profile compatibility on most cartridges; DPMS low profile with a centerfeed barrel extension on the CM10 Centerfeed (375 Raptor and 458 SOCOM XL)
- Controls: ambidextrous safety, magazine release and bolt release, and the CM10 ambidextrous charging handle
- Gas and buffer: Superlative Arms adjustable gas block, ODIN Works adjustable AR10 buffer; pistol, carbine or rifle-length gas set per cartridge and barrel length
- Barrels: 416R stainless steel on most cartridges, made by Mos-Tek on the 375 Raptor, 8.6 Blackout, 358 Winchester and 308 Subsonic AR10; CrMV on the 6mm Creedmoor; E100 Blackout or Tactical Grey Cerakote
- Twist: set per cartridge, from 1:3 (8.6 Blackout) to 1:14 (22-250 Remington); see the lineup table below
- Trigger: TriggerTech Duty, single-stage straight, single-stage curved or two-stage straight, 3.5 lb
- Handguard: CM10 LWS M-LOK in 11.5 or 15 inches, SLR ZRO on the 8.6 Blackout pistols and SBRs, and a suppressor-enclosing SD handguard on the 308 Subsonic AR10
- Furniture: B5 Systems stock and grip, or an adjustable brace on pistols
- Magazines: Magpul PMAG LR/SR on SR25-pattern models; modified MDT metal AICS-pattern on the Centerfeed, 10 rounds for 375 Raptor and 7 rounds for 458 SOCOM XL
- Muzzle: threaded, with optional muzzle brake selection or a thread protector
- Weight: 6 lb 12 oz (8-inch 8.6 Blackout) to 10 lb 4 oz (24-inch 6.5 Creedmoor); listing weights are shipping weights
- Finishes: Black Tungsten Cerakote, Cobalt Kinetics Green Cerakote, FDE Metallic Cerakote or Carbon Grey Cerakote, depending on the model
- Manuals: the CM15 and CM10 safety manual and the CM10 Centerfeed addendum are on the Manuals page
CM10 AR10 Rifles, SBRs and Pistols
Every short CM10 can be ordered as a pistol or an SBR. The barrel, receivers and trigger are identical; the pistol uses an adjustable brace and the SBR uses a B5 Systems stock. An SBR is regulated under the National Firearms Act (see NFA Firearms), and the 16 to 24-inch CM10 AR10 rifles need no NFA paperwork.
- 8-inch pistol or SBR: 8.6 Blackout, 6 lb 12 oz
- 12.5-inch pistol or SBR: 458 SOCOM XL, 375 Raptor, 8.6 Blackout and supersonic 308 Winchester, 7 lb 8 oz to 8 lb 3 oz
- CM10-SD 308 Subsonic AR10: a 12.5-inch 1:5 twist 308 Subsonic AR10, pistol or SBR, designed for subsonic ammunition and an enclosed suppressor, 7.5 lb
- 16-inch rifle: 458 SOCOM XL, 375 Raptor, 8.6 Blackout and 308 Winchester, 7 lb 12 oz to 8 lb 12.5 oz
- 18-inch rifle: 308 Winchester, 6.5 Creedmoor, 7mm-08 Remington, 338 Federal, 358 Winchester and 6mm Creedmoor, 7 lb 14 oz
- 20 and 22-inch rifle: 22-250 Remington and 243 Winchester at 20 inches and 22 Creedmoor at 22 inches, 9 lb 8 oz
- 24-inch rifle: 6.5 Creedmoor, 10 lb 4 oz
Shop every configuration in the CM10 category.
CM10 Cartridge Lineup
Every cartridge offered in CM10 AR10 rifles has its own hub with ballistics, barrel length, twist rate and hunting guides. Use this table to compare them, then follow the hub link for the details or the shop link for the firearms.
| Cartridge | CM10 barrel lengths | Twist | Subsonic | Cartridge hub | Shop |
|---|---|---|---|---|---|
| 458 SOCOM XL | 12.5 and 16 inches (Centerfeed) | 1:10 | Yes, 650 gr | Terminal 458 | CM10 458 SOCOM XL |
| 375 Raptor | 12.5 and 16 inches (Centerfeed) | 1:8 | Yes, 400 gr | Raptor Paddock | CM10 375 Raptor |
| 8.6 Blackout | 8, 12.5 and 16 inches | 1:3 or 1:5 | Yes | Area 8.6 | CM10 8.6 Blackout |
| 308 Winchester | 12.5, 16 and 18 inches (1:10); 12.5-inch CM10-SD (1:5) | 1:10 or 1:5 | Yes, CM10-SD | District 308 | CM10 308 |
| 6.5 Creedmoor | 18 and 24 inches | 1:8 | No | Variant Valley | CM10 6.5 Creedmoor |
| 7mm-08 Remington | 18 inches | 1:9 | No | Variant Valley | CM10 7mm-08 |
| 338 Federal | 18 inches | 1:10 | No | Variant Valley | CM10 338 Federal |
| 358 Winchester | 18 inches | 1:12 | No | Variant Valley | CM10 358 Winchester |
| 22 Creedmoor | 22 inches | 1:8 | No | Predator Plains | CM10 22 Creedmoor |
| 22-250 Remington | 20 inches | 1:14 | No | Predator Plains | CM10 22-250 |
| 6mm Creedmoor | 18 inches | 1:7.5 | No | Predator Plains | CM10 6mm Creedmoor |
| 243 Winchester | 20 inches | 1:8 or 1:10 | No | Predator Plains | CM10 243 Winchester |
The 458 SOCOM XL is a 458 SOCOM loaded with a longer 650 gr projectile to a 2.790-inch overall length in the CM10, which is beyond the AR15 magazine limit; read What Is 458 SOCOM XL?. The 375 Raptor was designed by Arne Brennan. The 6mm Creedmoor is often shortened to 6 Creedmoor.
Why AR10 Rifles for Short-Barrel Subsonic
A subsonic bullet travels below the speed of sound, so it makes no supersonic crack, and a suppressor then reduces the muzzle blast. Heavy subsonic bullets are long, and a long cartridge needs a long magazine. The 650 gr 458 SOCOM XL and the 400 gr 375 Raptor are loaded beyond the AR15 magazine limit, so Chattahoochee Munitions chambers them in the large-frame CM10 Centerfeed, which feeds them from a metal AICS-pattern magazine.
A semi-automatic also needs enough gas to cycle its bolt carrier, and a subsonic load makes far less gas than a supersonic one. The CM10 answers that with an adjustable gas block and an adjustable AR10 buffer, so it can be tuned to cycle the load with the suppressor attached. Heavy subsonic bullets also finish burning their powder early, which is why the 12.5-inch CM10 sits at the center of the subsonic lineup. Read the subsonic guides for 458 SOCOM, 375 Raptor, 8.6 Blackout and 308 Winchester.
The 308 Winchester is the exception that proves the point. A standard 1:10 twist 308 AR10 is configured for supersonic ammunition and will not reliably cycle subsonic loads, so Chattahoochee Munitions manufactures the separate CM10-SD 308 Subsonic AR10 with a 1:5 twist, an SD handguard and an operating system matched to heavy subsonic bullets and an enclosed suppressor.
Choosing CM10 AR10 Rifles by Use
- Suppressed subsonic shooting: 458 SOCOM XL, 375 Raptor and 8.6 Blackout in 8 to 12.5 inches, or the 12.5-inch CM10-SD 308 Subsonic AR10.
- Deer and hogs: 8.6 Blackout, 375 Raptor, 458 SOCOM XL, 308 Winchester, 6.5 Creedmoor, 7mm-08, 338 Federal, 358 Winchester and 243 Winchester, with expanding hunting bullets.
- Bear and elk: Chattahoochee Munitions recommends the 375 Raptor or 458 SOCOM XL for bear, including black, brown and grizzly bear, and the 338 Federal or 375 Raptor for elk. 8.6 Blackout, 338 Federal and 358 Winchester are also bear-capable.
- Coyotes and predators: 22 Creedmoor, 22-250 Remington, 6mm Creedmoor and 243 Winchester in 18 to 22-inch AR10 rifles; read the predator hunting cartridges guide.
- Reach and precision: the 24-inch 6.5 Creedmoor, the 22 Creedmoor and the 18-inch 308 Winchester with supersonic ammunition.
CM7S vs CM10 vs CM15
Chattahoochee Munitions manufactures three platforms. The CM7S is the bolt action; the CM10 and CM15 are gas-operated semi-automatics.
| CM7S | CM10 | CM15 | |
|---|---|---|---|
| Type | Bolt action | Large-frame semi-auto (AR10) | Semi-auto (AR15) |
| Operation | Manual; nothing cycles | Gas operated | Gas operated |
| Subsonic ammunition | Any safe subsonic load runs | Load and gas setup matched | Load and gas setup matched |
| Suppressor | Enclosed | Enclosed for subsonic, flow-through for supersonic | Enclosed for subsonic, flow-through for supersonic |
| Trigger | TriggerTech Remington 700 Primary | TriggerTech Duty | TriggerTech Duty |
| Magazine | AICS pattern | AR10 pattern; AICS on the CM10 Centerfeed | AR15 pattern |
| More | CM7S bolt action rifles | Shop CM10 | CM15 AR15 rifles |
Choose CM10 AR10 rifles for fast follow-up shots with cartridges too long or too powerful for an AR15. Choose the CM7S for quiet subsonic shooting from the shortest package, since a bolt action adds no action noise. Read 375 Raptor bolt action vs semi-auto, 458 SOCOM bolt action vs semi-auto, 8.6 Blackout bolt action vs semi-auto and 308 bolt action vs semi-auto.
CM10 Barrels and Magazines
- Barrels: the 8.6 Blackout AR10 barrel, the 16-inch Mos-Tek barrel used in CM10 8.6 Blackout rifles, and the rest of the CM10 barrels
- Centerfeed magazines: the 458 SOCOM XL magazine (7 rounds, CM7S and CM10) and the CM10 375 Raptor magazine (10 rounds)
- 8.6 Blackout magazines: 10-round and 20-round
- 308 Winchester magazines: 10-round and 20-round Magpul PMAG LR/SR
- 308 based cartridges: the 358 Winchester magazine, which also fits 6.5 Creedmoor, 7mm-08 and 338 Federal
- Predator cartridges: the 243 Winchester magazine for 243 Winchester, 22 Creedmoor and 6mm Creedmoor, and the 22-250 magazine
- Browse every one in CM10 magazines and accessories
Suppressors for CM10 AR10 Rifles
With subsonic ammunition, Chattahoochee Munitions recommends an enclosed suppressor on the CM10, such as the PLACID 375 on 375 Raptor, and the adjustable gas block and buffer tune the rifle to it. The CM10-SD 308 Subsonic AR10 needs an enclosed suppressor to cycle. With supersonic ammunition, a flow-through suppressor is recommended on the CM10. Confirm the suppressor is rated for your caliber. Read the suppressor guides for 458 SOCOM, 375 Raptor, 8.6 Blackout and 308 Winchester.
CM10 AR10 Rifles FAQ
Who makes the CM10 AR10?
Chattahoochee Munitions manufactures the CM10 in Roswell, Georgia, as complete factory AR10 rifles, SBRs and pistols in twelve cartridges, plus CM10 barrels and magazines.
Who makes a subsonic AR10?
Chattahoochee Munitions manufactures CM10 AR10 SBRs, pistols and rifles for subsonic 458 SOCOM XL, 375 Raptor and 8.6 Blackout, and the CM10-SD 308 Subsonic AR10, a 12.5-inch 1:5 twist AR10 for subsonic 308 Winchester.
What is the CM10 Centerfeed?
The CM10 Centerfeed is the 375 Raptor and 458 SOCOM XL version of the CM10. It uses DPMS low profile billet receivers, a centerfeed barrel extension and a metal AICS-pattern magazine so the long subsonic cartridges feed reliably. It does not lock the bolt open on the last round. Read CM10 vs CM10 Centerfeed.
Which CM10 cartridges are subsonic?
458 SOCOM XL, 375 Raptor, 8.6 Blackout and the CM10-SD 308 Subsonic AR10. The 1:10 twist 308 Winchester CM10s and the 6.5 Creedmoor, 7mm-08, 338 Federal, 358 Winchester, 22 Creedmoor, 22-250, 6mm Creedmoor and 243 Winchester are supersonic.
What is the difference between a CM10 pistol and SBR?
The barrel, receivers and trigger are identical. The pistol uses an adjustable brace and the SBR uses a B5 Systems stock. The SBR is regulated under the National Firearms Act.
What suppressor should I use on a CM10?
An enclosed suppressor rated for the caliber with subsonic ammunition, and a flow-through suppressor with supersonic ammunition. The CM10-SD 308 Subsonic AR10 needs an enclosed suppressor to cycle.
What magazines does the CM10 use?
Magpul PMAG LR/SR magazines on SR25-pattern models, and modified MDT metal AICS-pattern magazines on the CM10 Centerfeed: 10 rounds for 375 Raptor and 7 rounds for 458 SOCOM XL.
How much does a CM10 weigh?
From 6 lb 12 oz for an 8-inch 8.6 Blackout pistol or SBR to 10 lb 4 oz for a 24-inch 6.5 Creedmoor rifle. Every 18-inch AR10 rifle weighs 7 lb 14 oz. Listing weights are shipping weights.
What is the difference between the CM10 and the CM7S?
The CM10 is a gas-operated AR10 semi-automatic for faster follow-up shots. The CM7S is a manually operated bolt action with an enclosed suppressor recommendation. 375 Raptor, 458 SOCOM XL, 8.6 Blackout and 308 Winchester are offered on both.
Does Cobalt Kinetics Green Cerakote mean another company makes the CM10?
No. Cobalt Kinetics Green Cerakote is the finish color. Chattahoochee Munitions manufactures every CM10.