System requirements :
3D hardware accelerator card required - 100% DirectX(R) 9.0c-compliant 32 MB Hardware T&L - capable video card and the latest drivers
English version of Microsoft Windows 2000/XP/Vista
Pentium III 1.8 GHz or Athlon XP 1800+ or higher processor
256 MB of RAM
2.8 GB of uncompressed hard disk space (plus 320 MB for the Windows swap file)

Instalation :
- unpack
- run setup.bat and wait, when setup ask for reg entry answer yes
- run gun.exe to play
- enjoy

Download :

http://www.mediafire.com/?4u71n15gao2kg