Checking the working build.

Parts

An optional base or rail above the receiver that an optic attaches to. Not the optic itself.

Read the optic mount research guide

Ruger10/22 and 22 Charger Picatinny Scope Base RailRail length 4.62 inIncluded hardware Four screws

$21.95seen

RugerCombination Scope Base Weaver Ruger 10/22 BlueSupported ring styles Tip-off or Weaver-styleConstruction Black powder-coated aluminum

$10.95seen