Diamondback DB10
The Diamondback DB10 is an American-made AR-10 platform in .308 Winchester — delivering the power and reach of the .308 Win cartridge in a familiar AR-pattern package at pricing that makes large-frame AR ownership accessible. A practical, reliable .308 AR from a domestic manufacturer with a clean track record.
Read our full Diamondback DB10 Buying Guide ↓
About Diamondback Firearms
Diamondback Firearms is a Florida-based manufacturer that produces AR-platform rifles and pistols for the American civilian and law enforcement markets. Their DB10 extended Diamondback's AR-15 platform expertise to the larger .308 Win AR-10 pattern — bringing the same value-oriented approach to the large-frame AR market. Diamondback has built a solid reputation for reliable function and American manufacturing at competitive pricing.
DB10 Key Features
AR-10 pattern platform — The DB10 is built on the DPMS-pattern AR-10 lower receiver, compatible with the wide range of DPMS-footprint stocks, grips, and accessories available in the AR-10 aftermarket. Note: DPMS-pattern and Armalite-pattern AR-10 components are not interchangeable — verify compatibility before purchasing accessories.
.308 Winchester / 7.62 NATO — Full-power battle rifle cartridge with excellent terminal performance to 800+ yards in skilled hands. Significantly more powerful than 5.56 NATO for hunting larger game and longer-range shooting applications.
Mid-length gas system — The DB10's mid-length gas system provides smoother cycling and reduced bolt carrier velocity compared to carbine-length systems — a meaningful improvement in felt recoil and carrier wear over long-term use.
American-made — Designed and manufactured in Florida by Diamondback Firearms.
DB10 Configurations
DB10 Standard — The baseline DB10 in 16" or 18" barrel configurations. The right starting point for most buyers entering the .308 AR platform.
DB10 Pistol — A pistol-configuration DB10 for buyers who want the .308 platform in a compact format. As of January 1, 2026, adding a stock (SBR conversion) requires only a standard background check.
DB10 vs. Other .308 ARs
The DB10 competes with the DPMS GII, PSA PA-10, and Springfield SAINT Victor .308 in the value large-frame AR market. Diamondback's advantage is their Florida-based manufacturing and quality control. For buyers who want premium .308 AR quality, the Armalite AR-10 or Daniel Defense DD5 represent the upper tier. The DB10 is the practical middle ground — more refined than the cheapest .308 AR options without the premium price of top-tier platforms.
FAQ
What caliber is the Diamondback DB10?
.308 Winchester / 7.62 NATO. Both cartridges are compatible though .308 Win and 7.62 NATO have slightly different pressure specifications — check your barrel's marking for guidance on which is specifically recommended.
What magazines does the Diamondback DB10 use?
The DB10 uses DPMS-pattern .308 AR magazines. SR-25 pattern magazines (used by Armalite, Knight's Armament, and others) are not compatible due to different magazine well dimensions.
Where is Diamondback Firearms made?
Diamondback Firearms is based in Cocoa, Florida. Their firearms are manufactured in the USA.
Is the Diamondback DB10 good for hunting?
Yes — the .308 Win cartridge is one of the most versatile hunting cartridges available, effective on deer through elk-sized game at appropriate ranges. The DB10's semi-automatic platform provides fast follow-up shots for hunting applications where they're needed.