This Rimfire Fiber Optic sight set replaces your existing factory sights. It features full windage and elevation adjustment, a base that is CNC-machined, and a red front/green rear. Rear diameter sight 0.035", Front Diameter 0.060". This set is compatible with your Ruger 10/22. It does not fit the Takedown variants.
Specifications:

Type	Fiber Optic Front/Rear
Frame Material	Aluminum
Frame Color	Black
Firearm Fit	Ruger 10/22
Base Configuration	Dovetail
Style	3 Dot
Front Material	Fiber Optic
Rear Material	Fiber Optic
Front Color	Red
Rear Color	Green
Rail Size
Windage Adjustment	Yes
Elevation Adjustment	Yes
Fiber Diameter	.060" F/.035" R
Firearm Type	Rifle