The Diamondback DB15 CA Compliant is an AR-15 in 5.56x45mm NATO built to California's legal requirements. At 6.80 lbs with a 16-inch barrel, it handles easily and the adjustable Magpul CTR stock fits a range of shooter sizes. Capacity is 10+1 rounds. 
 

Key Specifications 

• Model: DB15 CA Compliant 
• Caliber: 5.56x45mm NATO 
• Barrel Length: 16 inches 
• Action: Semi-Auto 
• Capacity: 10+1 rounds 
• Weight: 6.80 lbs 
• Overall Length: Adjustable from 32.75" to 36" 
• Receiver Material: 7075-T6 Aluminum 
• Stock Description: Adjustable Magpul CTR 
• Muzzle Type: Flash Hider 
• Twist Rate: 1:8" 
   

Features 

The 7075-T6 aluminum receivers and black nitride barrel finish keep weight low without sacrificing durability. The rifle ships optic-ready — no iron sights, so buyers will want to budget for glass or a red dot. The flash hider is useful in low-light conditions. Manual thumb safety is standard. The Magpul CTR stock is a well-known component with solid lockup and tool-free length adjustment.

Owners of the Diamondback DB15 CA AR-15 often point to price and weight as its strongest selling points. At 6.80 lbs it's easy to handle during long range sessions, and it competes well on cost against other CA-compliant AR-15s.

Reliability with common ammunition is generally reported as good, and accuracy at moderate distances is adequate for both recreational shooting and home defense.

Criticisms focus on build quality compared to higher-priced AR-15s — some users feel the fit and finish reflects the price point. Parts compatibility issues and minor reliability problems after heavy use come up occasionally. California-specific feature restrictions (magazine capacity, muzzle devices) are noted as limitations, though that's inherent to any CA-compliant rifle.