Weaver 48328 Swivel Stud to Picatinny Rail Adaptor Black,

These versatile bases from Weaver help give your gun a versatile edge. Multi Slot Bases are constructed of tough, lightweight aluminum so they can withstand the most powerful recoil.

Picatinny Riser Set, Clam

Ruger 10/22 Receiver Picatinny/ MIL-STD 1913 Rail, sleek new design.

Weaver/Picatinny Type Rail Mount with Sling Swivel Stud/ Bipod Adapter

TG8940A compatible with Ruger 10-22 Models TG8941A compatible with Remington 870 / 1100 / 11-87 and Versa Max series TG8941B compatible with Mossberg 500 / 590 / 590A1 / 835 and 930 series