The M4A1 AR15 style Upper Receiver Group is built around a 14.5 inch Cold Hammer Forged M4 Profile barrel with a permanently attached Daniel Defense Flash Suppressor, a GRIP-N-RIP Charging Handle, and our mid-length gas system. It features a 12.5 inch lightweight RIS III rail—modeled after the revolutionary RIS II two-piece handguard developed for SOCOM—features M-LOK attachment for lighter weight while still offering M203 grenade-launcher attachment. All Daniel Defense complete upper receiver groups come standard with an M16 profile bolt carrier group.
Daniel Defense – DD4 RIII Upper Receiver — 5.56mm NATO · Black · 16″
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23-191-20088-006
Daniel Defense, DD4 RIII URG Upper, 5.56mm/223 Rem
16 Threaded Government Barrel, Black, RIS III 12.5 M-LOK Rail
Mid-Length Gas System, GRIP-N-RIP Charging Handle
The M4A1 AR15 style Upper Receiver Group is built around a 14.5 inch Cold Hammer Forged M4 Profile barrel with a permanently attached Daniel Defense Flash Suppressor, a GRIP-N-RIP Charging Handle, and our mid-length gas system. It features a 12.5 inch lightweight RIS III rail—modeled after the revolutionary RIS II two-piece handguard developed for SOCOM—features M-LOK attachment for lighter weight while still offering M203 grenade-launcher attachment. All Daniel Defense complete upper receiver groups come standard with an M16 profile bolt carrier group.
- Barrel Length
- 16"
- Billet
- No
- Stripped
- No
- Receiver Size
- AR-15
- Color
- Black
- Caliber
- 5.56mm NATO
- Manufacturer
- Daniel Defense
| Barrel Length | 16" |
|---|---|
| Billet | No |
| Stripped | No |
| Receiver Size | AR-15 |
| Color | Black |
| Caliber | 5.56mm NATO |
| Manufacturer | Daniel Defense |




