Description
The CMMG MK3 T .308 16″ Barrel RKM15 Hand Guard, 20rd Mag is a factory-built, direct-impingement AR-10 style rifle chambered in .308 Winchester/7.62x51mm NATO. It offers a 16-inch barrel configuration for a balance of power and maneuverability, coming ready to shoot with a 20-round magazine. This is a complete rifle system designed for reliable performance without the need for custom assembly.
Key Features
- Chambered in .308 Winchester for serious power and long-range capability.
- 16-inch barrel provides a versatile, handier platform than longer-barreled .308 rifles.
- RKM15 M-LOK handguard offers modern accessory mounting and heat management.
- Includes a 20-round magazine for immediate range use.
- Complete factory-built rifle—no gunsmithing required to get started.
Specifications & Details
| Specification | Detail |
|---|---|
| Caliber | .308 Winchester / 7.62x51mm NATO |
| Barrel Length | 16 inches |
| Handguard | RKM15 M-LOK |
| Magazine Capacity | 20 Rounds (included) |
| Action | Direct Impingement |
| Overall Length (Approx.) | ~35-36 inches |
Here’s the thing—getting into the .308 AR platform often means a hefty price tag or a complex build. The CMMG MK3 T sidesteps that by offering a turnkey solution at a compelling price point of $1343.34. That puts it in a competitive spot against other entry-to-mid-level .308 rifles, giving you more rifle for your money. Its mil-spec compatible design means a wide range of aftermarket AR-10 parts and accessories from brands like Magpul or Geissele can be used for customization down the line, protecting your investment.
Who This Rifle Is For
This rifle is built for the budget-conscious shooter who wants .308 power without custom shop prices. It’s ideal for hunters in Missouri’s varied terrain, where the 16-inch barrel is easier to manage in a blind or thick brush. It’s also a solid choice for a dedicated home defense or duty rifle where superior terminal ballistics are desired, or for a shooter wanting a single, versatile rifle for both target practice and practical application. The weight, likely around 8.5 to 9.5 pounds unloaded, is a practical tradeoff for the control it offers with the .308 round.
Pros & Cons
Pros: The primary advantage is value. You get a complete, reliable .308 rifle from a reputable manufacturer. The 16-inch barrel makes it more portable than a 20-inch model, and the M-LOK handguard is modern and usable right away. Being factory-built means it fits out of the box and is backed by CMMG’s warranty.
Cons: As with any .308 AR-platform rifle, expect more recoil and ammunition cost than a standard 5.56mm AR-15. The direct impingement system can run dirtier than a piston system, though it’s simpler and contributed to the lower price. Some may prefer a free-float handguard for ultimate precision, but the included RKM15 is a great starting point.
Frequently Asked Questions
Q: Is this a complete rifle, or just an upper receiver?
A: This is a complete, factory-assembled rifle. It includes the lower receiver, upper receiver, barrel, handguard, and a 20-round magazine. You will need to complete an FFL transfer for firearm purchases, but no additional parts are required to shoot.
Q: What type of magazines does it use?
A: The CMMG MK3 T .308 uses SR-25/DPMS pattern .308 magazines. The included 20-round magazine is this style, and many aftermarket options from brands like Magpul (PMAG® LR/SR GEN M3) are compatible. Always verify compatibility with your specific rifle.
Q: Is this rifle legal for hunting in Missouri?
A: Yes, the .308 Winchester caliber is an excellent and legal choice for Missouri deer, hog, and other big game hunting. The 16-inch barrel length is legal for hunting in the state, but always check the most current Missouri Department of Conservation regulations for any specific firearm restrictions in certain areas.
For a capable .308 rifle that prioritizes function and value over flashy extras, the CMMG MK3 T represents a smart buy. It’s available at firearms-missouri.com for Missouri residents and nationwide, ready to ship to your local FFL. See the full product page for more details and to check availability.
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