a base configured to be coupled in a fixed position on a first side of a riser of a bow, said base defining a guide, said guide having a first portion disposed along a front edge of said base and a second portion disposed along a rear edge of said base, said base defining a fastening aperture configured to receive a fastener for attaching said base to said riser, said fastening aperture disposed between said first portion of said guide and said second portion of said guide and extending along a first axis;

a shaft coupled to said base between said first portion of said guide and said second portion of said guide, said shaft extending along a second axis parallel to said first axis;

a pinion mounted on said shaft, said pinion being rotatable about said second axis;

a sight mount configured to facilitate the attachment of a sight thereto, said sight mount at least partially determining a position of a line of sight through said sight, said sight mount including a first scope ring disposed on a second side of said riser opposite said first side of said riser and forward of said riser, said sight mount additionally including a second scope ring disposed on said second side of said riser and rearward of said riser; and

a carrier movably coupled to said base and coupled to said sight mount, said carrier defining a follower having a first portion slidably engaged with said first portion of said guide and a second portion slidably engaged with said second portion of said guide, said guide facilitating movement of said carrier along a path with respect to said base and said shaft, said carrier defining an opening and a rack, said shaft being disposed through said opening, and said rack being meshed with said pinion.