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  1. Caliber
    9mm Luger
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  9. 5.7 x 28mm 1 item
  10. 9mm Luger 33 items
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Magazine Extensions

Maximize your carry capacity with Magazine Extensions from GunMag Warehouse. Whether you’re looking for factory extension sleeves, aftermarket upgrade kits, or extended floor plates for factory and aftermarket magazines, we offer a huge selection of magazine extensions from top-selling brands, such as KRISS®, Ruger®, Tyrant Designs®, and CMMG®. What are you waiting for? Shop our full collection of mag extensions today!

  1. KRISS Vector Gen 2 9mm +23 Round Magazine Extension Kit for Glock 17 Magazines
    KRISS Vector Gen 2 9mm +23 Round Magazine Extension Kit for Glock 17 Magazines
    (59)
    $32.99

    Add to Cart to See Price.

    $25.99 Save $7.00
  3. KRISS Vector Gen 2 9mm +23 Round Magazine Extension Kit for Glock 17 Magazines 3-Pack
    KRISS Vector Gen 2 9mm +23 Round Magazine Extension Kit for Glock 17 Magazines 3-Pack
    (8)
    $85.99

    Add to Cart to See Price.

    $67.99 Save $18.00
  5. Shield Arms +5/+4 Magazine Extension for Glock 17 / 22 Pistols
    Shield Arms +5/+4 Magazine Extension for Glock 17 / 22 Pistols
    (3)
    $39.99 $35.99 $36.99 Save $4.00
  6. Strike Industries Aluminum +4 / +5 Magazine Extension for Glock 17 / 22 Pistols
    Strike Industries Aluminum +4 / +5 Magazine Extension for Glock 17 / 22 Pistols
    $38.99 $43.99 $35.99 $39.99 Save $4.00
  7. Mec-Gar +2 Magazine Extension for Glock 17 / 19 Pistols
    Mec-Gar +2 Magazine Extension for Glock 17 / 19 Pistols
    (1)
    $16.99 $10.99 Save $6.00
  8. Shield Arms +5/+4 Magazine Extension for Glock 19 / 23 Pistols
    Shield Arms +5/+4 Magazine Extension for Glock 19 / 23 Pistols
    $39.99 $35.99 Save $4.00
  10. Shield Arms S15 +5 Magazine Extension
    Shield Arms S15 +5 Magazine Extension
    (3)
    $39.99 $34.99 $35.99 Save $5.00
  11. Strike Industries +5 Aluminum Magazine Extension for Glock 19 Pistols
    Strike Industries +5 Aluminum Magazine Extension for Glock 19 Pistols
    (5)
    $38.99 $39.99 $35.99 $37.99 Save $4.00
  22. Walther Taylor Freelance +6 Competition 9mm / .40cal Magazine Extension for PPQ Pistols
    Walther Taylor Freelance +6 Competition 9mm / .40cal Magazine Extension for PPQ Pistols
    $60.99 $34.99 Save $26.00
  24. Walther Taylor Freelance +0 Competition 9mm / .40cal Magazine Extension for PPQ Pistols
    Walther Taylor Freelance +0 Competition 9mm / .40cal Magazine Extension for PPQ Pistols
    (1)
    $30.99 $35.99 $25.99 Save $10.00
  29. Shadow Systems CR920X +3 Magazine Extension Kit
    Shadow Systems CR920X +3 Magazine Extension Kit
    Out of stock
    $30.99 $25.99 Save $5.00
  30. Walther Q-Series +2 Steel Extended Baseplate
    Walther Q-Series +2 Steel Extended Baseplate
    Out of stock
    $80.99 $73.99 Save $7.00
  32. Walther +2 Aluminum 9mm Magazine Extension for PPQ Pistols
    Walther +2 Aluminum 9mm Magazine Extension for PPQ Pistols
    Out of stock
    $60.99 $44.99 $46.99 Save $16.00
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