The Daniel Defense DD4 M4A1 RIII AR-15 Rifle in 5.56 NATO pairs a 14.5-inch Cold Hammer Forged barrel with a permanently attached flash suppressor (Daniel Defense part no. WEBGB-M4A1). The RIS III 12.5-inch rail uses M-LOK attachment, replacing the RIS II quad rail of the original M4A1 to cut weight. A fully ambidextrous lower and an ambidextrous GRIP-N-RIP charging handle let left- and right-handed shooters run the rifle without changing grips. It is a carbine from Daniel Defense for range work, training classes and home defense.

Key Specifications

• The chambering is 5.56 NATO, the standard AR-15 chambering this carbine is built around.
• The barrel is a 14.5-inch Cold Hammer Forged chrome-moly-vanadium barrel with an M4 profile and a 1:7 twist.
• The flash suppressor is pinned and welded to the muzzle, so it is a permanent part of the barrel assembly.
• The muzzle thread is 1/2×28, the standard AR-15 pattern.
• The handguard is a 12.5-inch RIS III rail with M-LOK attachment, lighter than the older quad rail.
• The lower receiver has fully ambidextrous controls, including the bolt catch, safety selector and magazine release.
• The charging handle is an ambidextrous GRIP-N-RIP, usable from either side of the rifle.
• The gas system is mid-length direct impingement with a pinned low-profile gas block.
• Weight is 6.39 pounds, with a length of 31.5 to 34.75 inches depending on stock position.
• Magazine capacity is 32 rounds, supplied as a DD Magazine.

Frequently Asked Questions

Is the flash suppressor removable? No. Daniel Defense pins and welds the flash suppressor to the 14.5-inch barrel, so it is permanently attached.

Is the lower ambidextrous? Yes. The bolt catch, safety selector and magazine release can all be operated from either side of the rifle.

Does it come with sights? No. Sights are sold separately.

Buy the Daniel Defense DD4 M4A1 RIII Rifle

The M4A1 RIII combines the carbine layout military shooters know with an M-LOK rail and ambidextrous controls. See more AR rifles from our Lubbock, Texas gun shop, or order this one for fast, insured shipping to your FFL.