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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!

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  1. Timber Creek Outdoors Sig Sauer P320 Magazine Extension Plate
    Timber Creek Outdoors Sig Sauer P320 Magazine Extension Plate
    (1)
    $49.99 $29.99 $31.99 Save $20.00
  2. Tyrant Designs +3 Magazine Extension for Glock 43 Pistol Magazines
    Tyrant Designs +3 Magazine Extension for Glock 43 Pistol Magazines
    (16)
    $34.99 $26.99 $31.99 Save $8.00
  9. Warne Scope Mounts +3 / +2 Extended Base Pad for Glock 17 / 22
    Warne Scope Mounts +3 / +2 Extended Base Pad for Glock 17 / 22
    (1)
    $39.99 $29.99 Save $10.00
  10. Warne Scope Mounts +3 / +2 Extended Base Pad for Glock 19 / 23
    Warne Scope Mounts +3 / +2 Extended Base Pad for Glock 19 / 23
    (3)
    $39.99 $29.99 $34.99 Save $10.00
  11. Timber Creek Outdoors Magazine Extension for Gen 4 / Gen 5 Glock 17, 19, and 34 Magazines
    Timber Creek Outdoors Magazine Extension for Gen 4 / Gen 5 Glock 17, 19, and 34 Magazines
    (2)
    $49.99 $29.99 $31.99 Save $20.00
  12. Tyrant Designs S&W M&P Shield +2 Aluminum Magazine Extension
    Tyrant Designs S&W M&P Shield +2 Aluminum Magazine Extension
    (19)
    $29.99 $19.99 $26.99 Save $10.00
  14. Tyrant Designs +3 Magazine Extension for Sig Sauer P365 X-Macro Pistols
    Tyrant Designs +3 Magazine Extension for Sig Sauer P365 X-Macro Pistols
    (7)
    $37.99 $39.99 $34.99 $35.99 Save $4.00
  16. TangoDown Vickers Tactical +2 Round Magazine Extension for Glock G43 Magazines
    TangoDown Vickers Tactical +2 Round Magazine Extension for Glock G43 Magazines
    (1)
    $16.99
  17. Warne Scope Mounts +5 / +4 Extended Base Pad for Glock 17 / 22
    Warne Scope Mounts +5 / +4 Extended Base Pad for Glock 17 / 22
    (3)
    $49.99 $39.99 Save $10.00
  20. 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
  24. Backup Tactical +5 Magazine Extension for Glock 19 / 23 Pistols
    Backup Tactical +5 Magazine Extension for Glock 19 / 23 Pistols
    (1)
    $59.99 $54.99 Save $5.00
  25. Mec-Gar +2 Magazine Extension for Glock 17 / 19 Pistols
    Mec-Gar +2 Magazine Extension for Glock 17 / 19 Pistols
    Out of stock
    (1)
    $16.99 $10.99 Save $6.00
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