Hi EOD,
Reading some earlier posts, I expect you know much more about these Nico distraction devices than me!
Anyway, I've tried to group my Nico stun grenades by function.
The first photo shows 4 variations on the 7 bang distraction device "which is ideal for use in open areas or large rooms"
Second photo shows 1 bang devices with side vents. These all have 8 side vents, evenly spaced around the side of the grenade. I think the first grenade in this photo has Swiss markings. the 3rd grenade is German military issue and is marked DM109. the 4th grenade is Belgian, 5th is German DM27 and the last one has a screw-on CS attachment.
Third photo shows 1 bang devices with base vents. The middle grenade has Dutch military markings.
4th photo shows 6 bang devices with base vents. The first 3 have British military markings.
5th photo shows 9 bang devices with side vents. These all have 9 side vents arranged in 3 pairs of 2 vents plus 1 group of 3 vents. The second grenade has German military markings (DM99). The last grenade in this photo has British experimental markings: "GRENADE HAND ASSAULT, TRAINING SOUND XL79E2" and is dated NICO 06/99.
6th photo shows 3 other distraction devices which I assume are Nico.
The last photo shows 2 Polish stun grenades next to a Nico 9 bang device for scale.






