Weaver Top Mount Scope Base #12

Front Base: H&R 800;
Savage 6, 7;
Winchester 74;
Remington 514, 550;
Stevens 57, 76, 4171/2, 762, 85, 87, 872;
Marlin 80, 81, 900, 917, XT-22, XT-17;
Mossberg 50, 51, 151, 152, 350, 352.Rear Base:H&R 800;
Sears 42, 43;
Remington 514, 550;
Savage 4, 5, 6, 7, 219;
Marlin 80, 81, 900, 917, XT-22, XT-17;
Winchester 57, 69, 69A, 72, 47, 74;
Mossberg 25, 26, 42, 46M, 140, 142, 146;
Stevens 56, 66, 57, 76, 4171/2, 762, 85, 87, 872;
Mossberg 45-46 with 3/4″ diameter barrels, 43, 44, 144, 46 BT, 35, 45, 46;
Mossberg early models with 13/16″ diameter barrels, 50, 51, 151, 152, 350, 352.
Features:
Aluminum construction;
For Weaver rings;
A front or rear base for select firearms