Offset Dual Ring Picatinny/Weaver Scope Mount with Quick Release, for 30mm or 1" Scopes Scope mount for mounting standard 30mm or 1 inch tube rifle scopes Mounts to any standard Picatinny or Weaver rail equipped rifle Attaches and detaches quickly and easily via integrated quick release mechanism, without additional tools or tightening 3 inches of forward extension allows extra flexibility for optimum eye relief and shooting position Optional 1" scope ring inserts can be used inside the scope rings, allowing for perfect fit mounting of 1" scope tubes