Daniel Defense DDM4 300 S .300 AAC Blackout 10.3in

The Daniel Defense DDM4 300 S is a factory short-barreled rifle built on the DDM4 platform and chambered in .300 AAC Blackout. It pairs a 10.3-inch S2W-profile barrel with Daniel Defense rail ergonomics and a DD improved flash suppressor for a compact, service-oriented package. This configuration is suited to shooters seeking a compact, accurate rifle for confined or close-range use and general range work.

Key Specifications

• Chambered in .300 AAC Blackout.
• The barrel measures 10.3 inches.
• Operates as a Semi-Auto action.
• Finished in Matte Black.
• The listed weight is 5.77 lbs.
• Overall length is reported as 26.75 inches.
• Rate of twist is 1-in-8.
• Equipped with a DDM4 Rail 9.0.
• Features a DD Improved Flash Suppressor.
• Classified as a Short Barrel Rifle (NFA) for transfer and compliance purposes.

Built to Daniel Defense standards, the DDM4 300 S combines a compact 10.3-inch S2W barrel, established DDM4 ergonomics, and rugged finishes for dependable performance in confined environments. Its combination of size, weight, and platform features makes it a logical choice for shooters who prioritize a compact, capability-focused rifle for range, duty-style applications, or close-quarters scenarios.