The Daniel Defense DDM4A1 RII is a hard-use, duty-ready 5.56mm NATO AR-15 style carbine built around a proven 14.5" M4-profile barrel and a rugged, free-float quad-rail handguard designed for serious accessory mounting. With a carbine-length gas system and a Picatinny top rail, the DDM4A1 RII delivers the handling and reliability shooters expect from Daniel Defense—ideal for enthusiasts looking for a premium 5.56 carbine with rock-solid build quality, excellent fit and finish, and all the mounting real estate needed for lights, lasers, grips, and optics. Firearm Features

The DDM4A1 RII is designed as a dependable, duty-ready AR-15 pattern rifle built around a fully ambidextrous lower, allowing operation of the bolt catch, safety selector, and magazine release from either side without shifting the firing hand. An ambidextrous GRIP-N-RIP charging handle further supports seamless use by right- or left-handed shooters. Caliber: 5.56 NATO Weight: 6.74 lbs Overall Length: 31-1/2" to 34-3/4" Action: Semi-Automatic DI Safety: Ambidextrous Barrel Length: 14.5" Barrel Twist: 1:7 Barrel Thread Pitch: 1/2×28 TPI

Daniel Defense DDM4A1 RII 5.56 NATO 14.5" Pinned and Welded Black 32+1 SB-022 Daniel Defense DDM4A1 RII