Redfield Bases Redfield 4-Screw Extension Rear, Extension Front. 1". PreviousRedfield 1" Top 2-Screw, High Polish Rings. 1". NextRedfield Top 2-Screw Rings Standard Rear, Extension Front. 1", All Heights. Matte. Redfield 4-Screw Extension Rear, Extension Front. 1". Redfield 4-Screw Extension Rear, Extension Front. 1". from $225.00 Ring Heights:Low .152"Medium .272"High .402" Extension/Height/Grade: Select Extension/Height/Grade 1" Low, 522016; New or Restored1" Low; Used1" Medium, 522018; New or Restored1" Medium; Used 1" Low, 522016; New or Restored 1" Low; Used 1" Medium, 522018; New or Restored 1" Medium; Used Quantity: Add To Cart Facebook0 Twitter