Holosun IRIS-3 / IRIS-4 Diffuser — ~40° close-range flood
Flip on flood when you need it. This tethered diffuser expands your Holosun IRIS-3 or IRIS-4 illuminator to about 40°, so close-range work under night vision isn’t stuck with a narrow throw.
Fits: Holosun IRIS-3 and IRIS-4
Beam: up to ~40° flood
Price: $49
Install notes
- Mount the laser near the end of the Picatinny rail and leave one rail slot exposed so the cap doesn’t snag. Further back still works — just a tighter flip on/off.
- Twist gently until the diffuser sits centered over the illuminator for max flood.
- Keep clear of the muzzle device; blast can shift the cap or damage the O-ring tether.
See the product photos for rail-slot placement.
In the box
- IRIS diffuser with tether
- Extra O-ring tether
- Product info card
Warranty: Housing and optical diffuser covered for life — contact us and we’ll repair or replace.
