The Relby-k23 was made from the main housing and pistol grip of a Nemrod brand pneumatic speargun.
- The Empire Strikes Back Coloring Book (1980)
- Star Wars Customizable Card Game — Cloud City Limited
- The New Essential Guide to Weapons and Technology
The Relby-k23 was made from the main housing and pistol grip of a Nemrod brand pneumatic speargun.