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Daniel Defense built its reputation on the RIS II rail it supplied to Special Operations Command, and the DD4 M4A1 RIII is the next chapter of that story. The heart of the rifle is a 14.5 inch cold hammer forged, chrome lined barrel in a government profile, made from chrome moly vanadium steel with a 1:7 twist and HP/MPI tested before it ever leaves Georgia. The extended flash suppressor is pinned and welded in place, so you get that shorter, quicker-handling M4 length in a package that still hits 16 inches overall. A mid-length gas system with a pinned low-profile gas block keeps the recoil impulse soft and takes some wear off internal parts compared to carbine-length setups.
The DD4 lower is where this rifle really separates itself from the original M4A1. Bolt catch, safety selector, and magazine release are all fully ambidextrous, so lefties and anyone running support-side drills can work the controls without breaking their grip. The GRIP-N-RIP charging handle carries that same theme up top. The flared magazine well speeds up reloads, and there is a QD swivel point machined right into the rear of the receiver for sling mounting.
The 12.5 inch RIS III handguard is modeled directly on the RIS II quad rail but swaps the picatinny sides for M-LOK slots, shaving noticeable weight while keeping the patented 6-bolt bolt-up attachment system. It is a true two-piece free-float design that never touches the barrel, so hanging lights, lasers, and grips on it will not mess with your accuracy. Up top you get a full-length picatinny rail for optics or iron sights.
Receivers are CNC machined from 7075-T6 aluminum with a Type III hard coat anodized finish, and the M16-profile bolt carrier group comes chrome lined with a properly staked gas key. The soft-touch overmolded Daniel Defense buttstock and pistol grip are comfortable through long training days. At roughly 6.8 pounds bare, this is a rifle that handles fast, runs clean, and holds its zero when the round count climbs.
Two big changes. The original M4A1 uses the RIS II picatinny quad rail, while the RIII runs the newer RIS III rail with M-LOK slots, which cuts weight while keeping the same bolt-up attachment strength. The RIII also sits on the DD4 lower, which adds a fully ambidextrous bolt catch, safety selector, and magazine release that the earlier version did not have.
No, the extended Daniel Defense flash suppressor is pinned and welded to the 14.5 inch barrel, bringing the overall barrel length to 16 inches. It is made from 17-4 PH stainless steel with a salt bath nitride finish. If you plan on running a different muzzle device or a suppressor that mounts to a specific brake, this is worth knowing before you buy.
It does not ship with iron sights. You get a full-length picatinny top rail across the receiver and RIS III handguard, so you can mount whatever optic, red dot, or backup sights fit your setup. The rail is continuous, which gives you plenty of room for night vision friendly configurations too.
It makes a real difference. Compared to the carbine-length system found on most 14.5 inch guns, the mid-length setup softens the recoil impulse and slows down the operating cycle a touch, which is easier on parts over a high round count. The result is a smoother-shooting rifle that stays flatter during rapid strings.
| UPC | 818773023245 |
|---|---|
| Manufacturer | |
| Manufacturer Part Number | 02-191-10613-047 |
| Action | |
| ATF Type | RIFLE |
| Barrel Finish | Black |
| Barrel Length | 14.5'' |
| Caliber/Gauge | .223 REM/5.56 NATO |
| Capacity | 30 |
| Color | Black |
| Length | 34.75'' |
| Magazine Included | 1 x 30-Round |
| Model | |
| Number of Magazines | 1 32 rd. |
| Package Height | 4.1 |
| Package Width | 10.9 |
| Product Type | AR |
| Safety | Ambidextrous |
| Shipping Weight | 12.7 |
| Sights | Picatinny Rail |
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