Description
The CMMG MK3 AR 6.5 Creedmoor 20″ Barrel 20rd Mag A2 Black Stock 20rd Mag is a purpose-built, long-range AR-10 platform rifle chambered in the highly effective 6.5 Creedmoor cartridge. It’s designed for precision engagement at extended distances, offering a robust and reliable system for hunters, target shooters, and tactical users who need consistent performance beyond the range of standard calibers. This rifle ships to Missouri and compliant US states.
Key Features
- 20-inch Barrel: Optimized for the 6.5 Creedmoor, providing the full velocity and ballistic efficiency the cartridge is famous for.
- AR-10 Platform Reliability: Built on CMMG’s proven MK3 pattern for durability and familiar controls.
- 6.5 Creedmoor Chambering: Delivers superior long-range ballistics with less wind drift and more retained energy than .308 Winchester.
- Included 20-Round Magazine: Comes ready for the range or field with a standard-capacity magazine.
- Classic A2 Fixed Stock: Provides a solid, consistent cheek weld and length of pull for repeatable shooting.
- Mil-Spec Compatibility: The platform accepts a wide range of standard AR-10 parts and accessories for customization.
Specifications & Details
| Specification | Detail |
|---|---|
| Caliber | 6.5 Creedmoor |
| Barrel Length | 20 Inches |
| Stock | A2 Fixed Black Stock |
| Magazine | 20-Round, Included |
| Action | Direct Impingement |
| Platform | CMMG MK3 (AR-10 Pattern) |
Weighing in at approximately 9.5 pounds unloaded, this rifle is built for stability, not for hiking light. The 6.5 Creedmoor round itself is the star—its high ballistic coefficient and efficient powder burn mean it stays supersonic longer and bucks the wind better than many legacy rounds. That said, you’re investing in a system meant for deliberate, accurate fire. The price point of $1534.92 reflects its build quality and specialized chambering.
Who This Rifle Is For
This CMMG is for the shooter who has a specific job in mind that starts at 300 yards and goes out from there. Think of the hunter in Missouri’s open farmland or the Ozark foothills, needing a single, well-placed shot on a whitetail at distance. It’s for the precision rifle competitor stepping into gas-gun divisions, or the prepared individual who understands the value of a capable, long-range defensive tool. When it comes to reaching out and making a first-round hit count, this platform provides a serious advantage. It’s compatible with many aftermarket AR-10 triggers and handguards, like those from Geissele or Midwest Industries, allowing you to tailor it to your exact needs.
Pros & Cons
Pros: The 6.5 Creedmoor cartridge offers exceptional long-range accuracy with manageable recoil. The 20-inch barrel maximizes its potential. The A2 stock is simple and rugged. The rifle is drop-in ready with magazine included, requiring no immediate upgrades to be effective. The AR-10 platform offers immense customization potential.
Cons: Ammunition cost is higher than .223/5.56. The rifle is heavier and longer than a typical AR-15, making it less handy for close-quarters. Magazine availability and cost can be higher than standard AR-15 mags. It’s a specialized tool—is your primary need really long-range engagement?
Frequently Asked Questions
Q: Is this compatible with my DPMS pattern AR-10 lower receiver?
A: The CMMG MK3 generally follows the DPMS pattern, but as with any AR-10 platform, fitment between different manufacturers can vary. It is always best to consult with the manufacturer or a gunsmith for specific upper/lower compatibility, though CMMG parts are typically designed to work within the DPMS specification.
Q: Can I use .308 Winchester ammunition in this rifle?
A: Absolutely not. The 6.5 Creedmoor and .308 Winchester are different cartridges with different chamber dimensions. Firing a .308 round in a 6.5 Creedmoor chamber is extremely dangerous and can cause catastrophic failure. Only use ammunition marked 6.5 Creedmoor.
Q: What type of optic should I use for this rifle?
A: To fully utilize the 6.5 Creedmoor’s capability, a variable-power scope with magnification starting around 3-5x and going up to 15x or more is ideal. Look for scopes with bullet drop compensator (BDC) reticles calibrated for 6.5 CM, or a first focal plane mil/moa reticle for precise holdovers at any magnification.
Ready to add serious long-range capability to your safe? This CMMG MK3 in 6.5 Creedmoor is available at firearms-missouri.com for Missouri residents and nationwide. Contact your local FFL to initiate a transfer.
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