Description
Picture this: you’re glassing a ridgeline at 400 yards, the wind is a steady 10 mph from the west, and you need a single, precise shot to count. That’s the scenario where a rifle’s true capability is measured. The Diamondback DB10 M-Lok 15″ 6.5 Creedmoor 20″, /, 20 rd is built for that moment. It’s a direct-impingement AR-10 platform rifle chambered in the renowned 6.5 Creedmoor cartridge, featuring a 20-inch barrel for maximum velocity, a 15-inch M-Lok handguard for modularity, and ships with a 20-round magazine. This rifle delivers long-range precision in a reliable, semi-automatic package right out of the box, requiring no gunsmithing to get you on target.
Let’s talk about what makes this rifle work. The heart of the system is that 20-inch, button-rifled barrel in 6.5 Creedmoor. This length is the sweet spot for the cartridge, allowing the sleek, high-BC bullets to reach their optimal velocity for extended range and reduced wind drift. The result is a flat-shooting, hard-hitting platform that bridges the gap between .308’s power and the laser-like trajectories of dedicated target rounds. With an overall length of approximately 39 inches and a weight around 9.5 lbs unloaded, it’s a stable platform for prone or supported shooting.
The 15-inch M-Lok handguard is where practicality meets personalization. It’s a full-length, free-float tube that gives you real estate for a bipod, a sling mount, a light, or a vertical grip—whatever your mission profile demands. The slim, ergonomic profile provides a solid grip and excellent heat dissipation. Since it’s built on the AR-10/SR-25 pattern, the DB10 offers broad parts compatibility. You can easily upgrade the trigger, stock, or grip with components from brands like Magpul or LaRue Tactical. The rifle’s MSRP is set at a competitive $1173.77.
Here’s the thing—reliability is non-negotiable. The DB10 utilizes a mil-spec compatible bolt carrier group and a carbine-length gas system tuned for the 6.5 Creedmoor, ensuring consistent cycling with a wide range of ammunition. The included 20-round magazine gives you ample capacity for a string of shots at the range or in the field. This rifle is available at firearms-missouri.com for Missouri residents and nationwide, ready for your FFL transfer.
| Caliber | 6.5 Creedmoor |
| Barrel Length | 20 Inches |
| Handguard | 15-inch M-Lok |
| Magazine Capacity | 20 Rounds |
| Action | Semi-Automatic, Direct Impingement |
| Platform | AR-10 / SR-25 Pattern |
Pros: Excellent long-range performance from the 6.5 Creedmoor cartridge and 20-inch barrel. Highly customizable M-Lok handguard. Reliable AR-10 platform with strong aftermarket support. Comes ready to run with a 20-round mag.
Cons: The full-length configuration is less ideal for tight-quarters use. Ammunition cost is higher than .223/5.56. As with any precision rifle, performance is tied to quality optics, a significant additional investment.
So who is this rifle for? It’s for the hunter who takes ethical shots across Missouri crop fields or western canyons. It’s for the precision-minded sport shooter who wants to stretch their legs on a 1,000-yard range without the bolt-action manual of arms. It’s for the prepared citizen who values a capable, semi-automatic platform for reaching out accurately if ever necessary. This isn’t a close-quarters blaster; it’s a purpose-built tool for measured, decisive engagements at distance.
Frequently Asked Questions
Q: Is the DB10 compatible with .308 Winchester ammunition?
A: No. It is chambered specifically for 6.5 Creedmoor. While both cartridges are used in AR-10 platforms, they are not interchangeable. Always use the correct, specified ammunition for your firearm.
Q: What type of optics mount does it use?
A: The upper receiver has a flat top Picatinny rail, which is the standard for mounting scopes, red dots, and other optics. You will need to purchase scope rings or a one-piece mount separately to fit your chosen optic.
Q: Can I use PMAGs from my AR-15 with this rifle?
A: No. The DB10 uses AR-10/SR-25 pattern magazines, which are larger than standard AR-15 magazines. Magpul makes excellent PMAGs in the SR-25/LR-308 pattern that are compatible with this rifle.
If you’re ready for a rifle that brings serious long-range capability to a trusted semi-auto platform, the Diamondback DB10 in 6.5 Creedmoor is a solid choice. See the full details and check availability on our site.
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