This is an original factory replacement part from Marlin. Factory replacement parts are manufactured to the exact same specifications and tolerances and use the same manufacturing materials as the original parts. Disassembly and assembly may be required and some parts may require installation by a qualified gunsmith. FitBolt-Action Models: 25N, 925, 25NC, 980S, 925C, 880SQ, 980V, 880, 917M2, 995Semi-Auto Models: 70, 70P (Papoose), 70HC, 989, 989M-2, 7000, 7000TGlenfield: 989G, 70Coast to Coast: 42, 440WestPoint: 701Big 5: 700Montgomery Ward: 45XT-22 LR