The Diamondback DB10 is a semi-automatic rifle chambered in .308 Win with an 18-inch fluted 416 stainless steel barrel and a 7075-T6 aluminum receiver. It holds 20+1 rounds, weighs 8.73 lbs, and adjusts from 36 to 39.25 inches with the Magpul CTR stock. The barrel twist rate is 1 in 10 inches. 
 

Key Specifications 

• Model: DB10 
• Caliber: .308 Win 
• Action: Semi-Auto 
• Capacity: 20+1 rounds 
• Barrel Length: 18" 
• Overall Length: 36"-39.25" (Adjustable) 
• Weight: 8.73 lbs 
• Stock Type: Adjustable Magpul CTR 
• Safety Mechanism: Manual Thumb Safety 
• Sights: Optic Ready (None included) 
• Receiver Material: 7075-T6 Aluminum 
• Barrel Description: Fluted 416 Stainless Steel 
• Twist Rate: 1 in 10" 
• Muzzle Device: Flash Hider 
   

Detailed Features 

The fluted 416 stainless steel barrel reduces weight compared to a solid-profile barrel and dissipates heat faster during extended strings. The 7075-T6 aluminum receiver is hard-wearing. The Magpul CTR stock adjusts length of pull across a practical range for different shooters. No sights are included — the receiver is ready for a Picatinny-mounted optic. The flash hider at the muzzle reduces muzzle rise during firing and keeps follow-up shots on target.

The DB10 in .308 Win Midnight Bronze draws attention from buyers who want a distinctive finish on a practical .308 platform. The Midnight Bronze look is the first thing most owners comment on — it stands out from the standard black or gray options common in this segment.

Affordability is a consistent positive. The DB10 sits at a competitive price for a semi-automatic .308, and accuracy and reliability with common ammunition types get generally good marks from owners who have put rounds through it.

Customization gets a thumbs up — the Diamondback platform accepts a wide variety of aftermarket parts, and owners appreciate having options.

On the negative side: build quality variability surfaces in user reports. Some note fit-and-finish concerns or parts that feel less refined than more expensive alternatives. Weight at 8.73 lbs is another common complaint, particularly for owners who want to carry the rifle for extended periods. A minority report initial setup friction — minor assembly issues or optic-zeroing challenges that required some patience. Specific replacement parts for the DB10 can also be harder to source than for the more common AR-15 platform.