The Daniel Defense M4A1 RIII is a 5.56 NATO AR-15 rifle that takes the SOCOM-style M4A1 and updates it with a fully ambidextrous lower and a lightweight M-LOK rail (Daniel Defense part no. 02-191-10613-047). The 14.5-inch cold hammer forged barrel carries a Daniel Defense flash suppressor that is pinned and welded on, and the 12.5-inch RIS III handguard replaces the older RIS II quad rail. Daniel Defense adds its ambidextrous GRIP-N-RIP charging handle, so both left- and right-handed shooters run the rifle comfortably. This is the black version, built for range work, home defense and training.

Key Specifications

• The chambering is 5.56mm NATO, a widely available and well-proven rifle cartridge.
• The barrel is 14.5 inches, cold hammer forged, M4 profile, chrome lined, with a 1:7 twist.
• The muzzle device is a pinned and welded extended flash suppressor threaded 1/2×28, which is permanently attached.
• The handguard is a 12.5-inch RIS III rail with M-LOK attachment, a lighter replacement for the RIS II quad rail.
• The gas system is mid-length direct impingement, which keeps recoil smooth and cycling reliable.
• The lower receiver has fully ambidextrous controls, so the bolt catch, safety selector and magazine release work from either hand.
• The charging handle is the ambidextrous GRIP-N-RIP, which is easy to reach from either side.
• The receivers are 7075-T6 aluminum with Type III hard coat anodizing, with a flared magazine well to speed reloads.
• Weight is 6.39 pounds and the overall length runs 31.5 to 34.75 inches depending on the stock position.
• The finish is black, and the rifle includes a Daniel Defense buttstock, pistol grip and full-latch hard case.

Frequently Asked Questions

Is the M4A1 RIII ambidextrous? Yes. Daniel Defense lists a fully ambidextrous lower, which lets either hand work the bolt catch, safety selector and magazine release, and the GRIP-N-RIP charging handle is ambidextrous as well.

How is the muzzle device attached? The Daniel Defense flash suppressor is pinned and welded to the 14.5-inch barrel, so it is permanent, and the muzzle is threaded 1/2×28.

What is the difference between the M4A1 RIII and the original M4A1? The RIII swaps the RIS II quad rail for a 12.5-inch RIS III rail with M-LOK attachment and adds the fully ambidextrous lower.

Buy the Daniel Defense M4A1 RIII Rifle, 5.56 NATO, 14.5-Inch Barrel with Pinned Flash Suppressor, Black

If you want the SOCOM-style M4A1 layout with an ambidextrous lower and a lighter M-LOK rail, the M4A1 RIII delivers it in a ready-to-run package. Order it from our Lubbock, Texas gun shop for fast, insured shipping to your FFL, and browse more AR rifles from our catalog.