The Download Now link directs you to the Apple iTunes Store, where you can continue the download process. You must have an active iTunes account to download the application. This download may not be available in some countries.
From Techno Keet:
If you are gun lover and love to hear the sounds of gunfires, then Easy Gun Sounds is for you, as it covers all the popular guns along with their sounds. Select the gun of your choice and start firing. You can also select to fire a single shot or multiple shot at once. By using this app you will feel like you are watching a real gun firing, the app also provides information and specifications related to the gun you have selected. With the gaming like user interface, you can spend lots of your time by firing the guns and enjoy the time.