This is a SAVAGE 60, 99, 110 & 170 reproduction Folding Leaf Rear Sight. It has an adjustable blued steel rear sight that fits standard 3/8″ dovetail. It also features double-screw locks for elevation and a white aiming point. The rear sight fits the following models: SAVAGE 99, 99A SERIES A COAST TO COAST 843 COTTER & CO 842 WESTERNFIELD SB712 C.I.L. 871 WESTERN AUTO 260 SAVAGE 99C SERIES A, 99DE, 99F, 99PE, SAVAGE 99E SERIES A SAVAGE 170C SERIES A, 170, 170 SERIES A SAVAGE 170C SERIES B, 170 SERIES B MOSSBERG 800, 800A, 800B, 800C, 800CVT, 800CSM SAVAGE 110, 110C, 110DE, 110H, 112 MOSSBERG RM7 MOSSBERG 810 SPRINGFIELD 840, 840 SERIES E SAVAGE 60, 980, 980DL, 987 SAVAGE 90 SAVAGE 982DL, 982MDL WESTERN AUTO 220A, 220B, 220C WESTERNFIELD 767, 768, 780, 782 WESTERNFIELD 710