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Plenty of AR-15s in this range hand you a bare bones parts kit and call it a day. The Diamondback DB15 Obsidian takes the opposite approach. This is the upgraded tier of Diamondback's DB15 lineup, and the parts list reads like somebody built the rifle they wanted to own. Breek Arms Warhammer ambidextrous charging handle, Battlearms enhanced bolt catch, ambi safety and mag release, Magpul CTR stock and MOE K2+ grip, all sitting on forged 7075-T6 receivers with a clean Jungle Green Cerakote finish that stands out without screaming for attention. The barrel stays black nitride for contrast, and it looks sharp in person.
The 16-inch barrel is 4150 Chrome Moly Vanadium with a 1:8 twist, which is the sweet spot for stabilizing everything from 55 grain plinking ammo up to heavier 77 grain match loads. The mid-length gas system is the detail a lot of folks overlook, and it matters. Compared to a carbine-length system, it smooths out the recoil impulse and is easier on parts over the long haul. Up front, Diamondback's own Obsidian muzzle brake keeps the muzzle flat during quick strings, and the 1/2×28 threads mean you can swap it for a suppressor mount or flash hider whenever you want.
The 15-inch free float M-LOK handguard is Diamondback's anti-rotation V4 S-Rail, with a full-length Picatinny top and integrated QD sling mounts including one right up front. That gives you room for a light, laser, hand stop, and a full C-clamp grip without anything feeling cramped. The top rail comes bare, so plan on adding your own optic or irons, which frankly is how most people prefer it anyway.
Diamondback ships this one with a 30-round Magpul Gen M3 PMAG, so you can head straight to the range. At 6.6 pounds bare, it carries easily and balances well with an optic and light mounted. Whether it ends up as a range gun, a home defense rifle, or your go-to truck companion, the Obsidian brings upgrades you would normally be buying piece by piece.
No, it ships optics ready with a bare top rail. The full-length Picatinny rail on the upper and handguard gives you plenty of mounting room for a red dot, LPVO, or flip-up irons. Most buyers in this price range already have a preferred optic, so Diamondback left the choice up to you.
The 1:8 twist is a great all-purpose rate that stabilizes a wide spread of bullet weights. It handles cheap 55 grain range ammo just fine and really shines with 62 to 77 grain loads. It also shoots both 5.56 NATO and .223 Remington safely.
It comes closer than most factory ARs. You get an ambi safety selector, ambi mag release, a Battlearms enhanced bolt catch, and a Breek Arms Warhammer ambidextrous charging handle. Left-handed users can run this rifle without fighting the controls.
Yes. The barrel is threaded 1/2×28, which is the standard pattern for 5.56 muzzle devices and suppressor mounts. Just remove the factory Obsidian muzzle brake and install your mount of choice. The mid-length gas system also tends to play nicer with suppressed shooting than shorter carbine setups.
| UPC | 810035756229 |
|---|---|
| Manufacturer | |
| Manufacturer Part Number | DB1784K791 |
| Action | |
| ATF Type | RIFLE |
| Barrel Finish | Black Nitride |
| Barrel Length | 16" |
| Caliber/Gauge | .223 REM/5.56 NATO |
| Capacity | 30 + 1 |
| Number of Magazines | 1 30 rd. PMag |
| Package Height | 3.3 |
| Package Width | 9.0 |
| Product Type | Rifle |
| Safety | Battlearms Ambidextrous |
| Shipping Weight | 8.35 |
| Sights | No Sights |
| Thread Pattern | 1/2×28" |
| Color | GREEN |
| Model |
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