Good used IHC Elevation Pinion and Windage Knob Set. The Pinion was made by IHC and the Windage Knob was made by DRC for IHC. Both are clearly stamped. The Pinion retains 80% of its original finish and the windage knob retains about 95%. The detent is very good on the Pinion(See Picture). Nice set to help you restore your IHC Garand!