Can someone link me to the download thing or what on how to get this cross hair? I see lots of people with so I'm going to assume it is allowed. If it's not just let me know. Thanks!

Here is the cross hair I'm talking about -->

Can someone link me to the download thing or what on how to get this cross hair? I see lots of people with so I'm going to assume it is allowed. If it's not just let me know. Thanks! Here is the cross hair I'm talking about --> https://gyazo.com/c172cda68f18db9880580c7c68c12e2c