The Daniel Defense M4A1 RIS II Rail Assembly (Manufacturer Model Number: 01-004-08001) is a 12.25" long, 17.7 oz accessory-rail with a flat dark earth (FDE) finish. Features include a free-floating barrel design, mil-spec 1913 Picatinny rails, and a continuous upper rail.
Specs
| Model No. | DD0100408001 |
| Model | M4A1 RIS II Rail Assembly |
| Manufacturer | Daniel Defense |
| Illuminated | No |
| Overall Length | 12.25" |
| Weight | 1.9 |
