The Williams Guide Open Sight Base requires the use of a Williams Rear Sight Blade (sold separately). These bases are milled from high tensile strength aluminum alloy and include two 6x48 mounting screws. Also feature dovetailed elevation and windage adjustments. Designed to be adaptable to a variety of firearms and may require drilling and tapping rifle. Black.
Material: Precision-made base, all parts milled from high tensile strength, aluminum
Finish: Will not rust, tough anodized finish
Gunsmithing Required: Yes
Dovetailed windage and elevation - easy to adjust, positive locks
Can be screwed or silver soldered on
Fits barrel diameters - .830 - .930
Fits A&B barrel contours F-44
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