The antivirus report shows that Zbrojní průkaz is completely safe for usage. Martin Roubec is the developer of the tool which can be found in the Sports category. The most recent update was on Oct 4, 2018 and this application was downloaded and set up by over 50K users.
On Google Play, the app is rated 4.8 by its users. It's free of charge to get the .apk file of Zbrojní průkaz and you can have a look at users' reviews on Droid Informer. This application installer requires 12 MB of free space on your device.