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The Obsidian Series is Diamondback's upgraded take on their proven DB15, and it shows in the details. Instead of a bare-bones carbine you'd need to spend a weekend swapping parts on, this one arrives with ambidextrous safety and magazine release, an enhanced bolt catch, an upgraded charging handle, and Magpul furniture already installed. The whole rifle wears a Flat Dark Earth Cerakote finish over forged 7075-T6 aluminum receivers, and at roughly 6.6 pounds it carries easy whether you're working a carbine class or just burning through a range day.
The 16 inch medium-profile barrel is 4150 chrome moly vanadium steel with a black nitride finish, and the 1:8 twist stabilizes everything from lightweight 55 grain plinking ammo up to heavier 77 grain match loads. Diamondback paired it with a mid-length gas system and a pinned gas block, which is a combination worth caring about. The longer gas system softens the recoil impulse compared to a carbine-length setup, and pinning the gas block means it stays put round after round. Behind it all sits a shot-peened, magnetic-particle inspected Mil-Spec 8620 bolt carrier, so the parts taking the abuse are built to handle it.
The 15 inch free-float M-LOK handguard uses an anti-rotation design with a full-length Picatinny top rail and integrated QD mounts, giving you plenty of real estate for lights, grips, and sling attachments. Magpul handles the furniture with an adjustable stock and MOE-K2 pistol grip, and the Obsidian muzzle brake up front helps keep the muzzle flat during quick follow-up shots. There are no sights included, so plan on adding an optic or backup irons, and the flat top rail gives you room for whichever direction you go. One 30-round Magpul PMAG ships in the box, so you're ready to load up as soon as your glass is mounted.
No, this rifle ships optic ready without sights. The full-length Picatinny rail on the upper receiver and handguard gives you plenty of room to mount a red dot, LPVO, or a set of backup iron sights, whichever suits how you plan to run it.
Yes. It's chambered for 5.56 NATO, which means it safely handles both 5.56 NATO and .223 Remington ammunition. That flexibility makes it easy to feed with whatever range or defensive ammo you have on hand.
The 1:8 twist is a great middle-ground rate for 5.56. It stabilizes common 55 grain range ammo just fine while also handling heavier 62 to 77 grain loads, so you can shoot budget plinking ammo and match-grade stuff through the same barrel without issue.
Yes, the 15 inch M-LOK handguard is a free-float, anti-rotation design that doesn't contact the barrel. That helps with consistency and accuracy, and the M-LOK slots plus integrated QD mounts make it simple to add lights, hand stops, and sling swivels wherever you want them.
| UPC | 810035756014 |
|---|---|
| Manufacturer | |
| Manufacturer Part Number | DB1784K061 |
| Action | |
| ATF Type | RIFLE |
| Barrel Length | 16'' |
| Caliber/Gauge | .223 REM/5.56 NATO |
| Capacity | 30 |
| Color | Flat Dark Earth |
| Length | 7.5'' |
| Magazine Included | 1 x 30-Round |
| Model | |
| Number of Magazines | 1 30 rd. PMag |
| Package Height | 3.2 |
| Package Width | 8.9 |
| Product Type | AR |
| Safety | Ambidextrous |
| Shipping Weight | 8.3 |
| Sights | No Sights |
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