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Warne Smith & Wesson M&P 9/40 Magazine Extension Up to 18% Off — 4 models

Special offer available for this product. Click here to see!
Warne Smith & Wesson M&P 9/40 Magazine Extension, +3/9mm, +2/.40, Black, 3306-3RD
Warne Smith & Wesson M&P 9/40 Magazine Extension, +3/9mm, +2/.40, Black, 3306-3RD
Warne Smith & Wesson M&P 9/40 Magazine Extension, +3/9mm, +2/.40, Black, 3306-3RD
Warne Smith & Wesson M&P 9/40 Magazine Extension, +5/9mm, +4/.40, Black, 3311-5RD
Warne Smith & Wesson M&P 9/40 Magazine Extension, +3/9mm, +2/.40, Dark Earth, 3308-3RD
Warne Smith & Wesson M&P 9/40 Magazine Extension, +5/9mm, +4/.40, Dark Earth, 3313-5RD
Warne Smith & Wesson M&P 9/40 Magazine Extension, +3/9mm, +2/.40, Dark Earth, 3308-3RD
Warne Smith & Wesson M&P 9/40 Magazine Extension, +3/9mm, +2/.40, Dark Earth, 3308-3RD
Warne Smith & Wesson M&P 9/40 Magazine Extension, +3/9mm, +2/.40, Black, 3306-3RD
1 of 8 images
Warne Smith & Wesson M&P 9/40 Magazine Extension, +3/9mm, +2/.40, Black, 3306-3RD
Warne Smith & Wesson M&P 9/40 Magazine Extension, +3/9mm, +2/.40, Black, 3306-3RD
2 of 8 images
Warne Smith & Wesson M&P 9/40 Magazine Extension, +3/9mm, +2/.40, Black, 3306-3RD
Warne Smith & Wesson M&P 9/40 Magazine Extension, +3/9mm, +2/.40, Black, 3306-3RD
3 of 8 images
Warne Smith & Wesson M&P 9/40 Magazine Extension, +3/9mm, +2/.40, Black, 3306-3RD
Warne Smith & Wesson M&P 9/40 Magazine Extension, +5/9mm, +4/.40, Black, 3311-5RD
4 of 8 images
Warne Smith & Wesson M&P 9/40 Magazine Extension, +5/9mm, +4/.40, Black, 3311-5RD
Warne Smith & Wesson M&P 9/40 Magazine Extension, +3/9mm, +2/.40, Dark Earth, 3308-3RD
5 of 8 images
Warne Smith & Wesson M&P 9/40 Magazine Extension, +3/9mm, +2/.40, Dark Earth, 3308-3RD
Warne Smith & Wesson M&P 9/40 Magazine Extension, +5/9mm, +4/.40, Dark Earth, 3313-5RD
6 of 8 images
Warne Smith & Wesson M&P 9/40 Magazine Extension, +5/9mm, +4/.40, Dark Earth, 3313-5RD
Warne Smith & Wesson M&P 9/40 Magazine Extension, +3/9mm, +2/.40, Dark Earth, 3308-3RD
7 of 8 images
Warne Smith & Wesson M&P 9/40 Magazine Extension, +3/9mm, +2/.40, Dark Earth, 3308-3RD
Warne Smith & Wesson M&P 9/40 Magazine Extension, +3/9mm, +2/.40, Dark Earth, 3308-3RD
8 of 8 images
Warne Smith & Wesson M&P 9/40 Magazine Extension, +3/9mm, +2/.40, Dark Earth, 3308-3RD

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Customer Reviews
Helpful Positive Review
Warne +5 magazine extension by Ant, Verified Owner, July 4, 2024
I personally have bought too many magazine extensions just to be totally disappointed in either the build quality or the color or even just the design.. the Warne extension looks amazing functions perfectly and is made of metal! Perfect magazine exte...
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1/1 found this helpful
Most Recent Reviews
warne mag extension by detor, Verified Owner, September 28, 2025
Fits nicely..adds a few rounds and looks great..I like the shape alot it ..overall I would recommend this item to others
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Product Info for Warne Smith & Wesson M&P 9/40 Magazine Extension

This Warne Smith & Wesson M&P 9/40 Magazine Extension adds extra ammo capacity to your handgun while still allowing it to be easily loaded and stored. Warne machined these Magazine Extensions from 6061 T6 aluminum to add extra durability. The Warne Smith & Wesson M&P 9/40 Magazine Extension features an ergonomic shape and finger grooves that make it easier to insert and remove the magazine. The Torx head screw and washer that hold this Warne Smith & Wesson M&P 9/40 Extension in place really make it the perfect attachment for maximum ammo capacity. Use the Warne Smith & Wesson M&P 9/40 Capacity Magazine Extension to add extra rounds to your handgun.image

WARNING: California`s Proposition 65

Specifications for Warne Smith & Wesson M&P 9/40 Magazine Extension:

Manufacturer: Warne
Finish: Type II Hardcoat Anodized
Fabric/Material: 6061-T6 Aluminum
Gun Make: Smith & Wesson
Gun Model: Smith & Wesson M&P 40, Smith & Wesson M&P 9
Caliber: 9mm Luger, .40 S&W

Features of Warne Smith & Wesson M&P 9/40 Magazine Extension

  • Torx head screw and washer for retention

Package Contents:

  • Warne Smith & Wesson M&P 9/40 Magazine Extension

What firearm models does the manufacturer say Warne Smith & Wesson M&P 9/40 Magazine Extension is compatible with?

The manufacturer suggests that Warne Smith & Wesson M&P 9/40 Magazine Extension is compatible with Smith & Wesson M&P 9, Smith & Wesson M&P 40

Warne Smith & Wesson M&P 9/40 Magazine Extension Orderable Models

List of Orderable Models

  • Warne Smith & Wesson M&P 9/40 Magazine Extension, +3/9mm, +2/.40, Black, 3306-3RD , MPN: 3306 , UPC: 656813108084 , Code: UY-PME-ME8-3306-3RD
  • Warne Smith & Wesson M&P 9/40 Magazine Extension, +5/9mm, +4/.40, Black, 3311-5RD , MPN: 3311 , UPC: 656813108138 , Code: UY-PME-ME8-3311-5RD
  • Warne Smith & Wesson M&P 9/40 Magazine Extension, +3/9mm, +2/.40, Dark Earth, 3308-3RD , MPN: 3308 , UPC: 656813108107 , Code: UY-PME-ME8-3308-3RD
  • Warne Smith & Wesson M&P 9/40 Magazine Extension, +5/9mm, +4/.40, Dark Earth, 3313-5RD , MPN: 3313 , UPC: 656813108152 , Code: UY-PME-ME8-3313-5RD

Warne Smith & Wesson M&P 9/40 Magazine Extension Unavailable & Discontinued Models

List of Unorderable Models

  • Warne Smith & Wesson M&P 9/40 Magazine Extension, +3/9mm, +2/.40, Red, 3310-3RD , MPN: 3310 , UPC: 656813108121 , Code: UY-PME-ME8-3310-3RD
  • Warne Smith & Wesson M&P 9/40 Magazine Extension, +3/9mm, +2/.40, Gray, 3309-3RD , MPN: 3309 , UPC: 656813108114 , Code: UY-PME-ME8-3309-3RD
  • Warne Smith & Wesson M&P 9/40 Magazine Extension, +3/9mm, +2/.40, Blue, 3307-3RD , MPN: 3307 , UPC: 656813108091 , Code: UY-PME-ME8-3307-3RD
  • Warne Smith & Wesson M&P 9/40 Magazine Extension, +5/9mm, +4/.40, Red, 3315-5RD , MPN: 3315 , UPC: 656813108176 , Code: UY-PME-ME8-3315-5RD
  • Warne Smith & Wesson M&P 9/40 Magazine Extension, +5/9mm, +4/.40, Blue, 3312-5RD , MPN: 3312 , UPC: 656813108145 , Code: UY-PME-ME8-3312-5RD
  • Warne Smith & Wesson M&P 9/40 Magazine Extension, +5/9mm, +4/.40, Gray, 3314-5RD , MPN: 3314 , UPC: 656813108169 , Code: UY-PME-ME8-3314-5RD
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Last updated 2026-10-25 UTC.