To install:

Unzip this zipfile into the folder:

SIERRA/Half-Life/Valve/

The models will be placed in the 'Models' folder and the sounds will be placed in the 'Sound/Weapons' folder, creating them if they don't allready exist.
Another folder called 'Bladerunner Readme' will also be created containing information and pictures of the movie prop.

Have fun,

Scarecrow