It's certainly not set up the way it is in the US. But: there are guns. When this invasion in Kursk started, people drove down to provide security for things like gas station customers so they didn't get attacked. Just sitting around with lawnchairs and firearms, offering packs of cigarettes to troops who came by. So while it's not "constitutional permitless open carry across the Russian Federation", it's also definitely not as simple as "Russia grabs all your guns and prevents you from getting any".