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Diamondback's Diamond Series is where the DB15 line stops being a budget AR and starts feeling like something you'd build yourself. This one wears a Midnight Bronze finish over forged 7075-T6 aluminum receivers, and the parts list reads like a wish list: Magpul ACS-L stock, MOE-K2+ grip, a 15 inch anti-rotation M-LOK S-rail handguard, and a crisp drop-in single stage trigger that breaks clean without the gritty mil-spec takeup most factory rifles ship with.
The 16 inch barrel is 4150 chromoly with a black nitride finish inside and out, so it shrugs off wear and cleans up fast. A 1:8 twist stabilizes everything from 55 grain plinking ammo up through heavier 77 grain match loads, which makes this a genuinely flexible range and training rifle. The mid-length gas system is the real story here though. Compared to a carbine-length setup, it softens the recoil impulse noticeably, and the pinned gas block means it stays put no matter how hard you run the gun. Down at the bolt, Diamondback uses a shot-peened mil-spec 8620 carrier, and the muzzle wears a Diamondback CNC-machined brake on standard 1/2×28 threads if you'd rather swap in your own device.
The flat-top upper ships without sights, so plan on adding a red dot, LPVO, or a set of backup irons. Between the full-length top rail and all that M-LOK real estate on the 15 inch handguard, you've got room for a light, sling mounts, and a hand stop without crowding anything. The ACS-L stock adjusts for length of pull and locks up tight, so it works whether you're layered up in winter gear or running it slick in a t-shirt.
At 6.95 pounds it handles quick, balances well with that long handguard, and the bronze-on-black look stands out on a rack full of plain black rifles. One 30 round Magpul PMAG comes in the box, so you're ready to shoot the day you pick it up.
The Diamond Series is Diamondback's upgraded tier of the DB15. You get a nicer drop-in single stage trigger, a pinned gas block instead of a set-screw unit, Magpul ACS-L and MOE-K2+ furniture, and the longer 15 inch anti-rotation M-LOK handguard. It's the same reliable platform with the parts most people upgrade first already handled at the factory.
No, it ships with a bare flat-top Picatinny rail and no iron sights. That's a plus if you're planning to run a red dot or scope anyway, since you're not paying for sights you'd pull off. Budget for an optic or a set of flip-up irons before your first range trip.
Yes. The chamber is cut for 5.56 NATO, which safely handles both full-pressure 5.56 and .223 Remington ammo. Combined with the 1:8 twist barrel, it shoots a wide range of bullet weights well, from cheap 55 grain range ammo to heavier match loads.
It is. A mid-length system on a 16 inch barrel gives the gas more dwell time and a softer impulse than a carbine-length setup, so the rifle cycles smoother and recoil feels gentler. The pinned gas block also means it won't walk out of alignment under heavy use like set-screw blocks sometimes can.
| UPC | 810035753150 |
|---|---|
| Manufacturer | |
| Manufacturer Part Number | DB1758K071 |
| Action | |
| ATF Type | RIFLE |
| Barrel Finish | Black Nitride |
| Barrel Length | 16" |
| Caliber/Gauge | .223 REM/5.56 NATO |
| Capacity | 30 + 1 |
| Length | 34 |
| Number of Magazines | 1 30 rd. PMag |
| Package Height | 9.0 |
| Package Width | 3.5 |
| Product Type | Rifle |
| Safety | Thumb |
| Shipping Weight | 12.95 |
| Sights | No Sights |
| Thread Pattern | 1/2"-28 tpi |
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