Our Sinclair Windage Rest Tops have completely lateral movement windage adjustment and all of the upgraded features found on our non-windage rest tops. Our Windage Rest Tops feature 46 inches of adjustment to 100 yards (23 inches at 500 yards) and are tested at the time of manufacture with 17 lbs of forend weight. Available for right and left-handed shooters and includes a one fourth inch - twenty screw to mount to our Sinclair rest post or any other rest post with one fourth inch - twenty mounting threads. The Sinclair Benchrest (B/R) Windage Top is for shooters who shoot Benchrest or those who prefer using owl ear Protektor or Edgewood front sandbags (Edgewood front bags require ad Mfg: Sinclair International