BR7 Barrel Mount Picatinny Rail - 15-24mm - Universal

Advertised as fitting barrels with an outer diameter as low as 15mm but good luck keeping it on. The spacers are just rubber and rely on friction to hold it in place. It's a cool concept but it barely serviceable as an airsoft product let alone real firearms.

Works great with Ruger 22/45 Lite

Nice addition to my AR12.