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There's a reason the 11.5-inch AR has such a loyal following. You keep enough barrel to get respectable velocity out of 5.56 NATO, but the whole package shrinks down to something that moves fast through doorways, fits in smaller bags, and balances beautifully with a suppressor up front. The Diamondback DB15 SBR is Diamondback's take on that formula, built in Cocoa, Florida with forged 7075 T-6 aluminum receivers and a black nitride finished barrel that shrugs off wear and cleans up easy.
Diamondback didn't cheap out on the furniture here, and that matters. You get a genuine Magpul CTR adjustable stock, which locks up tighter than the mil-spec collapsible stocks most factory guns ship with, plus Magpul MBUS flip-up sights front and rear so you can put rounds on target the day it comes home. The 9-inch M-LOK anti-rotation handguard free-floats the barrel and gives you plenty of real estate for a light, a hand stop, or whatever else your setup calls for. Underneath it all runs a carbine-length gas system, a smart pairing with the 11.5-inch barrel that keeps the gun cycling smoothly instead of beating itself up the way over-gassed shorties tend to do.
The muzzle wears standard 1/2×28 threads behind an A2 flash hider, so swapping to your favorite can or brake takes about a minute with a wrench. The 1:8 twist rate is the sweet spot for 5.56, stabilizing everything from lightweight 55 grain plinking ammo up to the heavier 69 and 77 grain loads that shine out of shorter barrels.
At 32.75 inches with the stock extended, this is a genuinely handy rifle for home defense, truck duty, or just having fun at the range. One 30-round Magpul PMAG comes in the box, and the whole gun runs standard AR-15 parts, so upgrades and spares are never hard to find. It's a well-sorted short barrel build from a company that's been quietly earning its reputation for years.
Yes. The 11.5-inch barrel is threaded 1/2×28, which is the standard pattern for 5.56 muzzle devices and suppressor mounts. It ships with an A2 flash hider installed, so you can run it as-is or spin on your own can or brake in a couple minutes.
The 1:8 twist handles the full range of common 5.56 and .223 bullet weights. For shorter barrels like this, a lot of folks lean toward 62 to 77 grain loads since heavier bullets tend to hold their performance better when velocity drops. That said, standard 55 grain ammo runs fine for range days and plinking.
It does. Diamondback ships this one with Magpul MBUS flip-up front and rear sights already installed, plus one 30-round PMAG. Between those and the Magpul CTR stock, it's ready to shoot the day you bring it home, no extra purchases required.
Yes, the DB15 is built on the standard AR-15 platform, so triggers, grips, stocks, magazines, and small parts all interchange. The 9-inch M-LOK handguard accepts any M-LOK accessory, and the flat-top upper takes whatever optic mount you prefer.
| UPC | 815875016014 |
|---|---|
| Manufacturer | |
| Manufacturer Part Number | DB2377K001 |
| Barrel Length | 11.5" |
| Caliber/Gauge | .223 REM/5.56 NATO |
| Capacity | 30 |
| Color | Black |
| Model | |
| Sights | Magpul Backup Flip Sight |
| Product Type | SBR |
| Action | |
| ATF Type | SBR |
| Number of Magazines | 1 30 rd. PMag |
| Length | 32.75 |
| Package Width | 3.5 |
| Package Height | 9.0 |
| Shipping Weight | 14.0 |
| Sights Type | Adjustable Sights |
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