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Diamondback AR-15 for Sale

Founded: 2009

HQ: United States

Diamondback Firearms LLC is a United States manufacturer founded in 2009. The company built its reputation on slim micro-compact carry pistols and an AR-15–pattern rifle line, and later added a 5.7×28 pistol and a convertible .22 LR/.22 WMR revolver. Over 159 Diamondback auctions have run on FirearmLand. Bidders see the DB15, DB10, and Sidekick most often.

Diamondback AR-15 Auctions

1 active auctions ending soon

Diamondback DB15 5.56 NATO AR-15 AR15 DB 16" THREADED +CT OPTICS

Diamondback DB15 5.56 NATO AR-15 AR15 DB 16" THREADED +CT OPTICS

Diamondback DB15 556 DB-15 AR15 AR

Recently Sold

Diamondback DB15 5.56 NATO AR-15 AR15 7" Multi-Tone Camo DB RADIAN +2 MAGS

Sold On 09/21/2026

Diamondback DB15 5.56 NATO AR-15 AR15 7" Multi-Tone Camo DB RADIAN +2 MAGS

Diamondback DB15 556 DB 15 AR15 Honey Badger BRACE

Diamondback DB15 5.56 NATO AR-15 AR15 DB 16" Green & Black

Sold On 09/11/2026

Diamondback DB15 5.56 NATO AR-15 AR15 DB 16" Green & Black

Diamondback DB15 556 DB-15 AR15 AR M-LOK

Diamondback DB15 223 Wylde DB-15 AR15 18" AR +TASCO SCOPE

Sold On 09/04/2026

Diamondback DB15 223 Wylde DB-15 AR15 18" AR +TASCO SCOPE

Diamondback DB15 DB-15 AR15 AR Binary Trigger

Diamondback DB15 5.56 NATO AR-15 AR15 16" DB MAGPUL

Sold On 08/28/2026

Diamondback DB15 5.56 NATO AR-15 AR15 16" DB MAGPUL

Diamondback DB15 556 AR15 DB-15 AR M-LOK

Diamondback DB15 300 Blackout AR-15 AR15 16" DB THREADED

Sold On 08/24/2026

Diamondback DB15 300 Blackout AR-15 AR15 16" DB THREADED

Diamondback DB15 300-BLK-AAC DB-15 AR AR15 M-LOK

Diamondback DB15 5.56 NATO AR-15 AR15 DB 16" Black & FDE

Sold On 08/21/2026

Diamondback DB15 5.56 NATO AR-15 AR15 DB 16" Black & FDE

Diamondback DB15 556 DB-15 AR15 AR M-LOK

Diamondback DB15 5.56 NATO DB-15 AR AR15 16" M-LOK

Sold On 08/14/2026

Diamondback DB15 5.56 NATO DB-15 AR AR15 16" M-LOK

Diamondback DB15 556 DB-15 AR AR15

Diamondback DB15 5.56 NATO AR-15 AR15 16" DB +2 MAGS

Sold On 08/12/2026

Diamondback DB15 5.56 NATO AR-15 AR15 16" DB +2 MAGS

Diamondback DB15 556 DB-15 AR15 AR

Diamondback DB15 5.56 NATO AR-15 AR15 16" FDE DB Bronze/Tan

Sold On 07/15/2026

Diamondback DB15 5.56 NATO AR-15 AR15 16" FDE DB Bronze/Tan

Diamondback DB15 556 DB-15 AR15 AR

Diamondback DB15 300 AAC Blackout FDE AR-15 AR15 16" DB +ORIG BOX

Sold On 07/10/2026

Diamondback DB15 300 AAC Blackout FDE AR-15 AR15 16" DB +ORIG BOX

Diamondback DB15 AR DB-15 AR15 M-LOK

Diamondback DB15 5.56 NATO AR-15 AR15 16 DB THREADED +ORIG BOX

Sold On 07/09/2026

Diamondback DB15 5.56 NATO AR-15 AR15 16 DB THREADED +ORIG BOX

Diamondback DB15 556 DB 15 AR15 M-LOK

Diamondback DB15 Carbon Series 5.56 NATO AR-15 AR15 DB 16"

Sold On 07/08/2026

Diamondback DB15 Carbon Series 5.56 NATO AR-15 AR15 DB 16"

Diamondback DB15 Carbon Series 556 DB-15 AR AR15

Diamondback DB15 Pistol 5.56 NATO DB-15 AR AR15 7" Grey THREADED

Sold On 07/01/2026

Diamondback DB15 Pistol 5.56 NATO DB-15 AR AR15 7" Grey THREADED

Diamondback DB15 Pistol 556 DB AR-15 AR15

Diamondback DB15 5.56 NATO AR-15 AR15 16" FDE & Black DB Threaded +2 MAGS

Sold On 07/01/2026

Diamondback DB15 5.56 NATO AR-15 AR15 16" FDE & Black DB Threaded +2 MAGS

Diamondback DB15 556 AR15 AR-15 DB M-LOK

Diamondback DB15 5.56 NATO AR-15 AR15 16 DB THREADED +ORIG BOX

Sold On 06/22/2026

Diamondback DB15 5.56 NATO AR-15 AR15 16 DB THREADED +ORIG BOX

Diamondback DB15 DB AR-15 AR15 M-Lok

Diamondback DB15 5.56 NATO DB-15 AR AR15 16" THREADED +2 MAGS

Sold On 06/15/2026

Diamondback DB15 5.56 NATO DB-15 AR AR15 16" THREADED +2 MAGS

Diamondback DB15 AR AR15 DB-15 K2+ Grip

Diamondback DB15 5.56 NATO DB-15 AR AR15 16' +2 MAGS, CVLIFE OPTICS

Sold On 06/15/2026

Diamondback DB15 5.56 NATO DB-15 AR AR15 16' +2 MAGS, CVLIFE OPTICS

Diamondback DB15 AR15 AR DB-15 M-LOK AGR-43 GRIP

Diamondback DB15 5.56 NATO DB-15 AR15 16" AR THREADED +2 MAGS

Sold On 06/03/2026

Diamondback DB15 5.56 NATO DB-15 AR15 16" AR THREADED +2 MAGS

Diamondback DB15 556 DB-15 AR AR15 +FOREGRIP

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Diamondback DB15 300 Blackout AR-15 AR15 16 DB Two-tone THREADED

Sold On 06/01/2026

Diamondback DB15 300 Blackout AR-15 AR15 16 DB Two-tone THREADED

Diamondback DB15 DB-15 AR AR15 M-Lok

Diamondback DB15 Carbon Series 5.56 NATO AR-15 AR15 16 DB +ORIG BOX

Sold On 05/29/2026

Diamondback DB15 Carbon Series 5.56 NATO AR-15 AR15 16 DB +ORIG BOX

Diamondback DB15 Carbon Series DB-15 AR AR15 M-Lok

Diamondback DB15 Pistol 5.56 NATO AR-15 AR15 10 DB THREADED

Sold On 05/29/2026

Diamondback DB15 Pistol 5.56 NATO AR-15 AR15 10 DB THREADED

Diamondback DB15 DB-15 AR AR15 SB TAC BRACE M-LOK

Diamondback DB15 338 ARC AR-15 AR15 11" DB Brace THREADED

Sold On 05/27/2026

Diamondback DB15 338 ARC AR-15 AR15 11" DB Brace THREADED

Diamondback DB15 DB 15 AR15 M-Lok

Diamondback DB15 5.56 NATO AR-15 AR15 16 DB THREADED +5 MAGS, CASE

Sold On 05/25/2026

Diamondback DB15 5.56 NATO AR-15 AR15 16 DB THREADED +5 MAGS, CASE

Diamondback DB15 DB AR-15 AR15 M-Lok

Diamondback DB15 5.56 NATO AR-15 AR15 16" DB THREADED

Sold On 05/22/2026

Diamondback DB15 5.56 NATO AR-15 AR15 16" DB THREADED

Diamondback DB15 AR DB-15 AR15 M-Lok

Diamondback DB15 5.56 NATO AR-15 AR15 16 FDE DB THREADED

Sold On 05/20/2026

Diamondback DB15 5.56 NATO AR-15 AR15 16 FDE DB THREADED

Diamondback DB15 DB-15 AR AR15 M-Lok B5 FOREGRIP

Diamondback DB15 5.56 NATO AR15 DB AR-15 +RAIL, LAW TACTICAL FOLDER, 2 MAGS

Sold On 05/19/2026

Diamondback DB15 5.56 NATO AR15 DB AR-15 +RAIL, LAW TACTICAL FOLDER, 2 MAGS

Diamondback DB15 AR15 DB AR-15 M4 16" CMC Trigger

Diamondback DB15 5.56 NATO AR-15 AR15 16" DB MAGPUL +3 MAGS

Sold On 05/15/2026

Diamondback DB15 5.56 NATO AR-15 AR15 16" DB MAGPUL +3 MAGS

Diamondback DB15 DB 15 AR15 M-Lok AR MAG LULA

Diamondback DB15 MZ OR FDE 5.56 NATO AR-15 AR15 16 DB Two-Tone +3 MAGS

Sold On 05/08/2026

Diamondback DB15 MZ OR FDE 5.56 NATO AR-15 AR15 16 DB Two-Tone +3 MAGS

Diamondback DB15 DB DB15MZ AR-15 AR15 M-Lok

Diamondback DB15 5.56 NATO AR-15 AR15 7" FDE DB +4 MAGS & ORIG CASE

Sold On 05/06/2026

Diamondback DB15 5.56 NATO AR-15 AR15 7" FDE DB +4 MAGS & ORIG CASE

Diamondback DB15 DB 15 556 AR15 PDW

Diamondback DB15 5.56 NATO AR-15 AR15 16" FDE & Black DB +2 MAGS

Sold On 05/06/2026

Diamondback DB15 5.56 NATO AR-15 AR15 16" FDE & Black DB +2 MAGS

Diamondback DB15 AR15 556 AR-15 Free-Float M-LOK

Diamondback DB15 5.56 NATO AR-15 AR15 16" DB +SIG ROMEO-MSR RED DOT

Sold On 04/08/2026

Diamondback DB15 5.56 NATO AR-15 AR15 16" DB +SIG ROMEO-MSR RED DOT

Diamondback DB15 556 AR15 AR-15

Diamondback DB15 5.56 NATO AR-15 AR15 7" FDE DB

Sold On 04/01/2026

Diamondback DB15 5.56 NATO AR-15 AR15 7" FDE DB

Diamondback DB15 556 AR-15 AR15 DB

Diamondback DB15 5.56 NATO AR-15 AR15 16" FDE +2 MAGS

Sold On 03/25/2026

Diamondback DB15 5.56 NATO AR-15 AR15 16" FDE +2 MAGS

Diamondback DB DB15 556 AR-15 AR15

Diamondback DB15 16" 5.56 NATO AR-15 AR15 Magpul MOE Tactical +ORIG BOX

Sold On 03/18/2026

Diamondback DB15 16" 5.56 NATO AR-15 AR15 Magpul MOE Tactical +ORIG BOX

Diamondback DB DB15 556 AR-15 AR15 M-LOK

Diamondback (DB) DB15 5.56 NATO 16" AR-15 AR15 +5 MAGS

Sold On 03/13/2026

Diamondback (DB) DB15 5.56 NATO 16" AR-15 AR15 +5 MAGS

Diamondback DB-15 5.56X45 AR15 Tactical-AR 556

Diamondback DB15 5.56 NATO AR-15 AR15 16" +3 MAGS

Sold On 03/13/2026

Diamondback DB15 5.56 NATO AR-15 AR15 16" +3 MAGS

Diamondback DB DB15 556 AR-15 AR15

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