The Daniel Defense DDM4A1 Carbine is a 5.56 NATO semi-automatic rifle built around a Mil-Spec upper and lower receiver set with a Daniel Defense RIS II rail system. Its 14.5-inch cold hammer forged, chrome-lined M4-profile barrel features a 1:7 twist and a permanently pinned and welded Daniel Defense flash suppressor, producing a 16-inch total barrel assembly. The rifle includes a six-position stock, soft-touch pistol grip, low-profile carbine-length gas block, M16-profile bolt carrier group, H buffer, and a 10-round Magpul PMAG. No sights are included, allowing the user to select compatible iron sights or an optic for the full-length top rail.

Key features

• 5.56 NATO chambering also accepts .223 Remington ammunition
• 14.5-inch cold hammer forged, chrome-lined M4-profile barrel with a 1:7 twist
• Permanently pinned and welded flash suppressor creates a 16-inch total barrel assembly
• Daniel Defense RIS II handguard provides a rigid free-float mounting platform
• Mil-Spec receivers feature an enhanced flared magazine well and rear receiver QD swivel point
• Six-position receiver extension supports adjustable length of pull and storage-ready handling configurations

The DDM4A1 Carbine combines a durable M4-style configuration with a proven RIS II rail system and a factory 10-round magazine.