# Diamondback DB 15 - Guns For Sale

The Diamondback DB15 is an AR-15 chambered in 5.56 NATO (.223 Remington compatible) with a 16-inch chrome-moly steel barrel at a 1:8 twist rate. Carbine-length gas system. Upper and lower receivers are 7075-T6 aluminum. The free-floating M-LOK handguard accommodates optics, lights, and grips; a full-length Picatinny top rail runs over the receiver. Standard features include a 6-position adjustable stock, A2 pistol grip, and a mil-spec trigger. Made in the USA.

## Featured Firearms (64 total)

| Product | Caliber | Price |
|---------|---------|-------|
| [Diamondback DB15 FDE Tactical 7.62x39mm Semi-Auto Rifle, 28+1 Rds](https://gunsnation.com/p/diamondback-db15-fde-tactical-7-62x39mm-semi-auto-rifle-28-1-rds/UCEGBnTkw) | 7.62X39 | - |
| [Diamondback DB15 Carbine - 5.56mm, 16" Barrel, 30-Round Semi-Auto](https://gunsnation.com/p/diamondback-db15-carbine-5-56mm-16-barrel-30-round-semi-auto/UCEMYyPjf) | 5.56 NATO | - |
| [Diamondback DB15 FDE 5.56 NATO, 16" Barrel Semi-Auto Rifle](https://gunsnation.com/p/diamondback-db15-fde-5-56-nato-16-barrel-semi-auto-rifle/UCEGBnSZh) | 5.56 NATO | - |
| [Diamondback DB15 16" .300 AAC Blackout Semi-Auto Precision Rifle](https://gunsnation.com/p/diamondback-db15-16-300-aac-blackout-semi-auto-precision-rifle/UCEGBnTX4) | .300 AAC Blackout | - |
| [Diamondback DB15 5.56 NATO 16" M-LOK Lightweight AR Rifle](https://gunsnation.com/p/diamondback-db15-5-56-nato-16-m-lok-lightweight-ar-rifle/UCEMYyQ7W) | 5.56 NATO | - |
| [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) | 5.56 NATO | - |
| [Diamondback DB15 Compact 7.62 Tactical Rifle - Optic Ready](https://gunsnation.com/p/diamondback-db15-compact-7-62-tactical-rifle-optic-ready/UCEGBnTkp) | 7.62X39 | - |
| [Diamondback DB15 6.5 Grendel FDE Semi-Auto Rifle, 28rd, Optic-Ready](https://gunsnation.com/p/diamondback-db15-6-5-grendel-fde-semi-auto-rifle-28rd-optic-ready/UCEGBnTMb) | 6.5 Grendel | - |
| [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) | 5.56 NATO | - |
| [Diamondback DB15 Tactical .300 Blackout Rifle, 16" Barrel, 30-Rd](https://gunsnation.com/p/diamondback-db15-tactical-300-blackout-rifle-16-barrel-30-rd/UCEGBnT36) | .300 AAC Blackout | - |
| [Diamondback DB15 .223 Wylde Tactical Sporting Rifle - Black](https://gunsnation.com/p/diamondback-db15-223-wylde-tactical-sporting-rifle-black/UCEGBnTTl) | .223 Wylde | - |
| [Diamondback DB15 Midnight Bronze 5.56 NATO 10" M-LOK Pistol](https://gunsnation.com/p/diamondback-db15-midnight-bronze-5-56-nato-10-m-lok-pistol/UCEGBnTVx) | 5.56 NATO | - |
| [Diamondback DB15 Tactical 7.62x39 Rifle, 16" Barrel, 28+1 Rounds](https://gunsnation.com/p/diamondback-db15-tactical-7-62x39-rifle-16-barrel-28-1-rounds/UCEGBnTj7) | 7.62X39 | - |
| [Diamondback DB15: 5.56mm Semi-Auto Tactical Rifle - USA Made](https://gunsnation.com/p/diamondback-db15-5-56mm-semi-auto-tactical-rifle-usa-made/UCEMYyQ2p) | 5.56 NATO | - |
| [Diamondback DB15 5.56 NATO Semi-Auto AR Rifle - Black, Optic-Ready](https://gunsnation.com/p/diamondback-db15-5-56-nato-semi-auto-ar-rifle-black-optic-ready/UCEGBnTSs) | 5.56 NATO | - |
| [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) | 5.56 NATO | - |
| [Diamondback DB15 Midnight Bronze 5.56 NATO Pistol, 7" Barrel](https://gunsnation.com/p/diamondback-db15-midnight-bronze-5-56-nato-pistol-7-barrel/UCEGBnTVT) | 5.56 NATO | - |
| [Diamondback DB15 Tactical Rifle 5.56 NATO Semi-Auto - Black](https://gunsnation.com/p/diamondback-db15-tactical-rifle-5-56-nato-semi-auto-black/UCEGBnSYN) | 5.56 NATO | - |
| [Diamondback DB15 .350 Legend Tactical Rifle, 16" Barrel, Optic Ready](https://gunsnation.com/p/diamondback-db15-350-legend-tactical-rifle-16-barrel-optic-ready/UCEGBnTgl) | .350 Legend | - |
| [Diamondback DB15 Tactical .300 AAC Blackout Rifle](https://gunsnation.com/p/diamondback-db15-tactical-300-aac-blackout-rifle/UCEMYyPez) | .300 AAC Blackout | - |

*Showing 20 of 64 products*

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