TruGlo Lever-Action Fiber Optic Sight Set Fits Winchester 94; Henry Golden Boy .22 LR; Henry Big Boy .44 Magnum; and Marlin Guide Rifles- Replaces existing factory sights.br- Full windage and elevation adjustment.br- CNC-machined.br- Not for barrels.br- Extremely bright in low-light conditions.br- Front diameter is .060".br- Rear diameter is .035".br- Front sight height is approximately 0.450".