RG-FL2530Ds 25-30mm tube Weaver Side 45 degree Offset Ring
-Fit for 25-30mm tube by 3 pcs spacers, Offset Ring outside 45
degree by sight line -See-thru design without Blocking the
Front Site -Weaver/Picatinny Base width 30mm/ 1.2" -Allen Wrench,
0.5mm,1mm,2mm thickness spacers Included -Lightweight and
Extra-Durable 6061 Aircraft Aluminum