Burris - 1" Sig Pos-Align Offset Ring Insert Eccentric Offset

1 Sig Pos-Align Offset Ring Insert Eccentric Offset - +/-.010Manufacture ID: 626017Signature rings also accept Pos-Align Offset Inserts so you can virtually sight-in your gun without moving thescope adjustments. Lens systems perform at their optimum when all lenses are optically centered. By keeping the internal optics centered you'll see through the scope all of the clarity sharpness and brightness that the optics designers intended for youto see. The offset inserts also correct for any mis-alignment caused by receiver holes drilled off center or the bases or rings being slightly off of perfect center. For you extreme range shooters the need for expensive tapered bases or shimming becomesa hassle and expense of the past.- 1Warranty: Burris warrants every product to be free of defects in materials and workmanship for life even if you are not the original owner. They will repair or replace any product if examination reveals adefect.