APK MOD INFO
Name of Game: Gun Club 2
VERSION: 2.0.3

Name of the cheat, mod, or hack (credits: wendgames):
-All Guns Unlocked

Gun Club 2 MOD APK 2.0.3 (All Guns Unlocked)

Download the CACHE file/OBB file. They should be .zip or .rar files.
Extract the file to your sdcard.
Move the extracted folder to the location: /sdcard/Android/obb