Daniel Defense DDM4 300S SBR 300 BLK


This Rifle under NFA law is classified as a short barrel rifle (SBR) and requires a federal tax stamp. This entails a wait period as well. Please research and understand this process before purchase.

Caliber – 300 BLK

Capacity – 30 + 1 Rounds

Barrel Length – 10.3″

Twist – 1:8″

Threads – 5 ⁄ 8 × 24

Muzzle – Daniel Defense Flash Suppressor

Rail – DDM4 Rail 9″

Sights – Optic Ready / Picatinny Rail

Overall Length – 26 3/4″– 29 7/8”

Weight – 5.77 lbs

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he DDM4 300S AR15 style rifle is designed for those demanding a high-performance, short-barrel rifle chambered in the versatile 300 Blackout cartridge. Built around a 10.3 inch barrel, the 300S uses standard 5.56 bolts and magazines to deliver .30 caliber projectiles with greater muzzle energy than comparable 5.56mm platforms. With a wide variety of factory ammunition made for everything from home defense, target shooting, hunting, suppressed operation, and tactical applications, the 300S is capable of delivering exceptional performance from a compact, fast-handling package. The independently ambi GRIP-N-RIP Charging Handle accommodates left- and right-handed shooters. This rifle also comes with the ergonomic Daniel Defense Buttstock and Pistol Grip.

Additional information


Daniel Defense


.300 AAC Blackout


30 Rounds

Firearm Type

Semi-Auto, Short Barrel Rifle (SBR)