The Weaver 1-Piece Extended Multi-Slot Picatinny Scope Base Mossberg Patriot LA is a one-piece extended (multi-slot) scope base built to fit the Mossberg Patriot long-action receiver (manufacturer part number 99474).

Key Specifications

• Engineered to fit the Mossberg Patriot long-action receiver.
• One-piece construction for maximum rigidity and simplified alignment versus a two-piece base.
• Extended, multi-slot profile that opens up additional ring-position choices for correct eye relief.
• Part of the Weaver Multi-Slot product line.
• Overall length is approximately 10 inches.
• Adds about 1 inch of forward base length versus a standard base, opening up more ring-position choices for eye relief.
• Constructed from 6061-T6 aluminum.
• Compatible with either Weaver-style or Picatinny-style rings, with an integrated recoil lug and stripproof Torx screws.
• Manufactured by Weaver.

Frequently Asked Questions

Will this fit my rifle?

This scope base is built specifically for the Mossberg Patriot long-action receiver. Confirm your receiver matches that action/model before ordering, since scope mounting hardware is not interchangeable across unrelated actions.

Do I need gunsmithing tools to install this?

Installation uses standard hand tools (a torque wrench or hex driver is recommended); no drilling or gunsmith fitting is required for the Mossberg Patriot long-action receiver interface.

Does this come with mounting hardware?

Yes, the mounting screws needed to attach it to a compatible receiver or rail are included.

Buy the Weaver 1-Piece Extended Multi-Slot Picatinny Scope Base Mossberg Patriot LA

Order from Schaefer Defense and shop more Weaver scope rings, bases, and mounting hardware, or browse our full Scope Bases selection.