The Daniel Defense DDM4A1 RII is an AR-pattern rifle chambered in 5.56 NATO with a 14.5-inch barrel; this is a short-barreled configuration and transfer requires additional federal paperwork. Capacity is 32+1 rounds. The rifle ships in a matte black finish. 
 

Key Specifications 

• Brand: Daniel Defense 
• Model: DDM4A1 RII 
• Caliber: 5.56 NATO 
• Action: Semi Auto 
• Capacity: 32+1 
• Barrel Length: 14.5 in 
• Color/Finish: Black 
   

Detailed Features 

• 14.5-inch barrel in 5.56 NATO (short-barreled configuration; additional federal paperwork required for transfer) 
• 32+1 round capacity 
• AR-pattern platform with matte black finish 
• RII designation consistent across vendor listings

Owners of the Daniel Defense DDM4A1 RII point to Daniel Defense's manufacturing quality as the main draw. The 14.5-inch barrel gives a more compact package than a standard 16-inch AR without the full SBR weight penalty on the paperwork side, though buyers know going in that the transfer process takes time.

The DDM4A1 RII has a reputation for tight tolerances and consistent performance out of the box. Most owners find very little to adjust or replace after purchase, which is a common theme with Daniel Defense rifles at this price level.

The price draws the most consistent criticism. Buyers weighing the DDM4A1 RII against less expensive AR-pattern options acknowledge they are paying a premium for the Daniel Defense name and quality control. Those who go ahead with the purchase tend to report satisfaction; those who pass usually cite cost as the only reason.