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Questions & Answers
Will this fit a Savage 110L with flat rear, round front Expert Answer

Yes, the MPN: 99490 and 99489 rails should fit that rifle.

by Kurt Colbourne, Gear Expert, April 9, 2021
I need an extended base for an axis model that has the larger 8-40 screws. Is this it? Expert Answer

These Weaver Extended Multi Slot Bases for the Savage Axis do not have the 8-40 screws. You will need model number 99611 which we currently do not have.

by Hunter, Gear Expert, August 19, 2022
Customer Reviews
Most Recent Reviews Well made and fit perfect by Moonshine455, Verified Owner, September 29, 2023
Bought the one piece Weaver Multiple Slot Base for my Savage 111 long action (270 Winchester) to get a more robust base than a 2 piece mount and provide improved scope eye relief. The base fit perfectly. It is well made and will work well with my Leu...
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Product Info for Weaver Extended Multi Slot Base System

Bring your rifle to task with a customized shooting experience by adding a Weaver Extended Multi-Slot Base to your weapon. These Gun Accessories developed by Weaver feature an additional 1-inch of forward lengh for a wide variety of gun and optic combinations. The Weaver Extended Multi-Slot Mounting Base is constructed from 6061 T6 aluminum for durability in a lightweight platform. Plus, this Weaver Accessory Mount Base includes a Type III hard coat anodized finish that prevents oxidation, corrosion, and wear, perfect for handling all of your tactical needs. You can get this base with 20 MOA cant for extended range optic adjustment or zero cant for standard optic use. Pick up this Weaver Extended Multi-Slot Base for your rifle today to create a lighter-weight shooting experience.image

WARNING: California`s Proposition 65

Specifications for Weaver Extended Multi Slot Base System:

Manufacturer: Weaver
Color: Matte Black
Quantity: 1
Gun Type: Rifle
Length: 1 inch in
Mount Type: Weaver
Attachment Type: Weaver, Picatinny

Features of Weaver Extended Multi Slot Base System

  • Lightweight Aluminum Construction
  • One-piece Multi-Slot Design
  • Extended Rail for Additional Mounting Flexibility
  • Cross-Lock Design

Package Contents:

  • Weaver Extended Multi Slot Base System

Weaver Extended Multi Slot Base System Orderable Models

List of Orderable Models

Weaver Extended Multi Slot Base System, Remington 700 La, 99501 , MPN: 99501 , UPC: 604544630978 , Code: WR-MT-EMSB-99501
Weaver Extended Multi Slot Base System, Browning Ab3 Sa, 99473 , MPN: 99473 , UPC: 604544630701 , Code: WR-MT-EMSB-99473
Weaver Extended Multi Slot Base System, Remington 700 Sa, 99503 , MPN: 99503 , UPC: 604544631012 , Code: WR-MT-EMSB-99503
USED, Weaver Extended Multi Slot Base System, Tikka T3X La & Sa, 99470 , MPN: 99470-EDEMO , Code: WR-MT-EMSB-99470-EDEMO-RE-B
USED, Weaver Extended Multi Slot Base System, Savage 10/11/12/14/16 Sa 20 Moa 6-48, 99492 , MPN: 99492-EDEMO , Code: WR-MT-EMSB-99492-EDEMO-RE-A
Weaver Extended Multi Slot Base System, Remington 700 Sa 20 Moa, 99504 , MPN: 99504 , UPC: 604544631036 , Code: WR-MT-EMSB-99504
Weaver Extended Multi Slot Base System, Savage 110/111/112/114/116 La 20 Moa 6-48, 99490 , MPN: 99490 , UPC: 604544630916 , Code: WR-MT-EMSB-99490
Weaver Extended Multi Slot Base System, Mossberg Mvp, 99467 , MPN: 99467 , UPC: 604544631623 , Code: WR-MT-EMSB-99467
Weaver Extended Multi Slot Base System, Mossberg Patriot La, 99474 , MPN: 99474 , UPC: 604544630725 , Code: WR-MT-EMSB-99474
Weaver Extended Multi Slot Base System, Remington 783 Sa, 99506 , MPN: 99506 , UPC: 604544631074 , Code: WR-MT-EMSB-99506
Weaver Extended Multi Slot Base System, Browning Ab3 La, 99472 , MPN: 99472 , UPC: 604544630688 , Code: WR-MT-EMSB-99472
Weaver Extended Multi Slot Base System, Tikka T3X La & Sa, 99470 , MPN: 99470 , UPC: 604544630640 , Code: WR-MT-EMSB-99470
Weaver Extended Multi Slot Base System, Remington 783 La, 99505 , MPN: 99505 , UPC: 604544631050 , Code: WR-MT-EMSB-99505
Weaver Extended Multi Slot Base System, Savage 10/11/12/14/16 Sa 6-48, 99491 , MPN: 99491 , UPC: 604544630930 , Code: WR-MT-EMSB-99491
Weaver Extended Multi Slot Base System, Winchester Model 70 Sa, 99481 , MPN: 99481 , UPC: 604544630824 , Code: WR-MT-EMSB-99481
Weaver Extended Multi Slot Base System, Mossberg Patriot Sa, 99475 , MPN: 99475 , UPC: 604544630749 , Code: WR-MT-EMSB-99475
Weaver Extended Multi Slot Base System, Savage Axis, 99487 , MPN: 99487 , UPC: 604544630848 , Code: WR-MT-EMSB-99487
Weaver Extended Multi Slot Base System, Winchester 70 LA, 99480 , MPN: 99480 , UPC: 604544630800 , Code: WR-MT-EMSB-99480
Weaver Extended Multi Slot Base System, Savage 110/111/112/114/116 La 6-48, 99489 , MPN: 99489 , UPC: 604544630893 , Code: WR-MT-EMSB-99489
Weaver Extended Multi Slot Base System, Ruger American Sa, 99469 , MPN: 99469 , UPC: 604544630626 , Code: WR-MT-EMSB-99469
Weaver Extended Multi Slot Base System, Savage 10/11/12/14/16 Sa 20 Moa 6-48, 99492 , MPN: 99492 , UPC: 604544630954 , Code: WR-MT-EMSB-99492
Weaver Extended Multi Slot Base System, Savage Axis 20 Moa, 99488 , MPN: 99488 , UPC: 604544630862 , Code: WR-MT-EMSB-99488

Weaver Extended Multi Slot Base System Unavailable & Discontinued Models

List of Unorderable Models

USED Weaver Extended Multi Slot Base System, Savage 110/111/112/114/116 La 20 Moa 6-48, 99490, EDEMO3, Used, Condition Like New, Inspect and Rebox , MPN: 99490-EDEMO3 , Code: WR-MT-EMSB-99490-EDEMO-RE-A
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