# Diamondback Firearms Semi Automatic Rifles - Guns For Sale

Diamondback Firearms semi-automatic rifles include DB15 and DB10 platforms chambered in popular calibers such as 5.56 NATO, .308 Win, 6.5 Creedmoor, and 300 AAC Blackout. This catalog tag features tactical, precision, and optic-ready configurations, including 16 inch and 18 inch DB10 models, 16 inch DB15 rifles, adjustable Magpul stocks, and finishes like FDE/black, Midnight Bronze, and Olive Drab Green.

Shop Diamondback DB15 and DB10 Gen 1 rifles for AR-style handling, range use, and sporting applications. From 5.56 tactical rifles with 30-round magazines to .308 Win and 6.5 Creedmoor precision builds, these Diamondback semi-auto rifles cover compact carbines, larger-frame platforms, and ready-to-customize setups.

## 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 | - |
| [DB10 Precision Bronze 6.5 Creedmoor Semi-Auto Rifle](https://gunsnation.com/p/db10-precision-bronze-6-5-creedmoor-semi-auto-rifle/UCEGBnT59) | 6.5 Creedmoor | - |
| [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 Carbon DB10 White .308 Win 16" Semi-Auto Rifle](https://gunsnation.com/p/diamondback-carbon-db10-white-308-win-16-semi-auto-rifle/UCEGBnTnu) | .308 Win | - |
| [Diamondback DB9: 9mm Semi-Auto Rifle, 16" Barrel, 32rd Mag](https://gunsnation.com/p/diamondback-db9-9mm-semi-auto-rifle-16-barrel-32rd-mag/UCEGBnTmQ) | 9mm | - |
| [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 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 DB10 .308 Win 18" Semi-Auto Rifle - Midnight Bronze](https://gunsnation.com/p/diamondback-db10-308-win-18-semi-auto-rifle-midnight-bronze/UCEGBnT4X) | .308 Win | - |
| [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 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 | - |
| [Diamondback DB15 Tactical 5.56 NATO Rifle - Optic Ready FDE/Black](https://gunsnation.com/p/diamondback-db15-tactical-5-56-nato-rifle-optic-ready-fde-black/UCEGBnTVq) | 5.56 NATO | - |
| [Diamondback DB15 5.56 NATO - Tactical Sport Semi-Auto Rifle](https://gunsnation.com/p/diamondback-db15-5-56-nato-tactical-sport-semi-auto-rifle/UCEGBnSt8) | 5.56 NATO | - |

*Showing 20 of 64 products*

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*Data from [GunsNation](https://gunsnation.com)*