Descrizione Weaver® Detachable Top-Mount Scope Base #63B 48069 Weaver® Detachable Top-Mount Scope Base #63B 48069 Nobody makes scope bases to fit as many guns as Weaver. Their precision-built bases are machined to tight tolerances for a custom fit, and fight the effects of recoil with a square-cut notch that mates to the sturdy cross bolt in every Weaver Detachable Ring. Rugged, precision 1- and 2-piece bases for use with Weaver-style rings that fit most popular gun models. Bases are constructed of machined aluminum. Custom-hardened fastening screws included. Color: Blued. There's no longer a need to search for front and rear bases for your most popular firearms. Weaver® Base Pairs feature tough, lightweight aluminum construction to hold up to the most powerful recoil. The Weaver cross lock design means a tight, secure fit on your firearm. These bases accept all Weaver top mount cross lock rings. Recommended For: Marlin Models 9, 36, 45, 62, 93, 336, 375, 444, 989, 1893, 1894, 1895, Glenfield 30, Zane Grey Mossberg 640 Western Field 740