The Weaver 48090 is a 1-piece aluminum top mount scope base designed specifically for the Marlin 39A rifle. Machined to tight tolerances, it provides a custom fit and delivers maximum strength to keep your rings secure. The base’s square-cut notch is engineered to mate precisely with the sturdy cross bolt integrated into every Weaver detachable ring, resisting recoil forces and maintaining zero.
Constructed from aluminum with a gloss black finish, the Model 48090 features the rock-solid Weaver cross-lock design, which accommodates a variety of rings and offers a versatile mounting platform for your classic Marlin lever action. The base is compatible with Marlin 39A round barrel rifles and comes with all necessary hardware. Installation uses two set screws; newer factory Marlin 39A round barrel rifles typically arrive drilled and tapped, though older models may require drilling and tapping before mounting.
Made in the USA, the Weaver 48090 represents the precision craftsmanship the brand is recognized for in the firearms accessory market.
