# Diamondback DB15 Tactical 5.56 NATO Semi-Auto Rifle - Black 16" **Brand:** Diamondback Firearms **Category:** Semi-Automatic Rifles **Caliber:** 5.56 NATO ## Specifications - **Caliber:** 5.56 NATO - **Barrel Length:** 16" - **Capacity:** 30 rounds - **Finish:** Black Nitride - **Weight:** 108.8 oz - **Overall Length:** 36" - **UPC:** 810035754119 - **SKU:** UCEGBnTMN ## Description The Diamondback DB15 in black with a 16-inch barrel is chambered in 5.56x45mm NATO and built on a 7075-T6 aluminum receiver. The 4150 chrome moly barrel has a 1:8" twist rate, and the adjustable Magpul CTR stock brings overall length between 32.75" and 36". Weight is 6.80 lbs. ### Key Specifications - **Action**: Semi-Auto - **Caliber**: 5.56x45mm NATO - **Barrel Length**: 16 inches - **Capacity**: 30+1 rounds - **Weight**: 6.80 lbs - **Overall Length (OAL)**: Adjustable from 32.75" to 36" - **Safety**: Manual Thumb Safety - **Stock Description**: Adjustable Magpul CTR - **Muzzle Device**: Flash Hider - **Receiver Material**: 7075-T6 Aluminum - **Sights**: Optic Ready - **Barrel Description**: 4150 Chrome Moly with a twist rate of 1:8" ### Detailed Features - **Semi-Automatic Action**: Standard AR-15 semi-auto operation. The 1:8" twist rate handles 62-grain and heavier projectiles well, giving you flexibility in ammunition selection. - **Adjustable Magpul CTR Stock**: The CTR lets you dial in length of pull and has a friction lock that reduces wobble on the buffer tube, a practical improvement over a standard mil-spec stock. - **Optic Ready**: No iron sights included. Standard AR-15 flat top accepts any Picatinny-compatible mount. - **Flash Hider**: Reduces visible muzzle flash, useful in low-light conditions. - **4150 Chrome Moly Barrel**: Standard AR-15 barrel steel. Durable under normal use and accepts standard .223/5.56 pressure loads. ## Frequently Asked Questions **Q: What caliber is the DB15?** A: The DB15 is chambered in 5.56x45mm NATO, which also accepts .223 Remington ammunition. **Q: Who makes the DB15?** A: The DB15 is made by Diamondback Firearms. **Q: What is the barrel length of the DB15?** A: It has a 16-inch barrel made from 4150 chrome moly steel with a 1:8" twist rate. **Q: How many rounds does the DB15 hold?** A: It has a 30+1 capacity. **Q: What type of firearm is the DB15?** A: The DB15 is a semi-automatic rifle built on a 7075-T6 aluminum receiver in the AR-15 platform. **Q: Is the DB15 optic-ready?** A: Yes. It ships without iron sights and has a flat-top Picatinny rail that accepts any compatible optic mount. **Q: Where can I buy the DB15?** A: Compare current vendor offers on this page. ## What Reviewers Say *Quoted verbatim from YouTube reviews. Each link opens the video at the moment quoted.* > I think this is probably one of my favorite guns that I own it's the db15 by Diamondback and this thing is just a beast. > > — [Johnny Q](https://www.youtube.com/watch?v=5-f6l9Wlhe0&t=2s) > Now we don't recommend running this through your gun too much you know steel case we'll beat on your gun a good bit unless it's an old military surplus. > > — [CGA Defense](https://www.youtube.com/watch?v=lIlB3eq-MG4&t=155s) > It's ran perfect we haven't had a single issue and the only time we've had an issue is due to ammo not to the gun itself. > > — [CGA Defense](https://www.youtube.com/watch?v=lIlB3eq-MG4&t=263s) > It looks sexy and again for the price Diamondback Firearms or any of their AR platforms is probably one of the best you can get on the market. > > — [CGA Defense](https://www.youtube.com/watch?v=lIlB3eq-MG4&t=311s) ## What Customers Say *AI-generated insights from customer reviews* The DB15 in black at 16 inches is Diamondback's most common configuration and gets the most discussion across forums. The price point draws in first-time AR buyers and shooters who want a second rifle without a significant investment. For that audience, performance feedback is generally good, reliable operation, acceptable accuracy, and it takes standard AR-15 parts for customization. Build quality discussions are more mixed as users compare it to mid-tier and higher-end options. It holds up well for range use and casual home defense setup. Users who push it harder or compare it directly to Bravo Company or Daniel Defense note differences in fit, finish, and component tolerances. That's an honest comparison at different price points. The 1:8" twist gets a positive mention from users who want to run heavier 5.56 loads. Magpul CTR stock gets consistent praise over the basic M4-style stock it replaces. Customer service experiences with Diamondback are split in the usual way for this brand. Some owners report smooth warranty handling, others describe difficulty getting responses or satisfactory resolution. ## Pricing **13 offers available** | Vendor | Price | |--------|-------| | Shootingsurplus Com | $830.68 | | Gritrsports Com | $839.99 | | Kygunco Com | $841.85 | | Centerfiresystems Com | $841.99 | | Buds Gun Shop | $843.99 | | Impactguns Com | $847.69 | | Globalordnance Com | $856.75 | | Guns Com | $856.99 | | Grabagun Com | $859.99 | | Selwayarmory Com | $878.99 | *...and 3 more offers* ## Similar Products - [Diamondback DB15 5.56 NATO FDE Tactical Semi-Auto Rifle](https://gunsnation.com/p/diamondback-db15-5-56-nato-fde-tactical-semi-auto-rifle/UCEGBnTM6) - [Diamondback DB15 AR-15: Versatile 5.56 NATO Semi-Auto Rifle](https://gunsnation.com/p/diamondback-db15-ar-15-versatile-5-56-nato-semi-auto-rifle/UCEGBnTM0) - [Diamondback DB15 AR-15 Carbon 5.56 NATO 16" Semi-Auto Rifle](https://gunsnation.com/p/diamondback-db15-ar-15-carbon-5-56-nato-16-semi-auto-rifle/UCEGBnTSe) - [Diamondback DB15 CA AR-15, 5.56 NATO, 16" Barrel, Adjustable Stock](https://gunsnation.com/p/diamondback-db15-ca-ar-15-5-56-nato-16-barrel-adjustable-stock/UCEGBnTWS) - [Diamondback DB15 Multi-Cam 5.56 NATO Semi-Auto Rifle, Optic Ready](https://gunsnation.com/p/diamondback-db15-multi-cam-5-56-nato-semi-auto-rifle-optic-ready/UCEGBnTsX) - [Diamondback DB15 - 5.56 NATO, 16" Semi-Auto Rifle, Black Finish](https://gunsnation.com/p/diamondback-db15-5-56-nato-16-semi-auto-rifle-black-finish/UCEGBnSYb) --- *Data from [GunsNation](https://gunsnation.com)*