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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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  3. Tyrant Designs Glock 43 +1 Magazine Extension (BLACK) Right
    Tyrant Designs +1 Magazine Extension for Glock 43 Pistols
    $29.95 $29.99 $19.99 $21.99 Save $10.00
  5. Walther Taylor Freelance +0 Competition 9mm / .40cal Magazine Extension for PPQ Pistols - BLK
    Walther Taylor Freelance +0 Competition 9mm / .40cal Magazine Extension for PPQ Pistols
    (1)
    $30.99 $35.99 $25.99 Save $10.00
  8. Warne Scope Mounts +5 Extended Base Pad for Sig Sauer P320 Pistols - Black
    Warne Scope Mounts +5 Extended Base Pad for Sig Sauer P320 Pistols
    (1)
    $47.99 $49.99 $29.99 $39.99 Save $20.00
  14. Kel-Tec PF9 One Round Extension Black
    Kel-Tec PF9 One Round Extension
    (39)
    $22.99 $12.99 $16.99 Save $10.00
  16. Tyrant Designs S&W M&P Shield Plus 2 Aluminum Magazine Extension Black Left View
    Tyrant Designs S&W M&P Shield +2 Aluminum Magazine Extension
    (19)
    $29.99 $19.99 $26.99 Save $10.00
  18. Strike Industries +5 Magazine Extension for PMAG Gen M3 - Black
    Strike Industries +5 Magazine Extension for PMAG Gen M3
    $12.99
  19. Timber Creek Outdoors Sig Sauer P320 Magazine Extension Plate - BLK
    Timber Creek Outdoors Sig Sauer P320 Magazine Extension Plate
    (1)
    $49.99 $25.99 $31.99 Save $24.00
  20. Warne Scope Mounts Extended Base Pad For Glock 19/23 +3/2 Black (Right)
    Warne Scope Mounts +3 / +2 Extended Base Pad for Glock 19 / 23
    (3)
    $39.99 $29.99 $34.99 Save $10.00
  21. Walther Taylor Freelance +6 Competition 9mm / .40cal Magazine Extension for PPQ Pistols - BLK
    Walther Taylor Freelance +6 Competition 9mm / .40cal Magazine Extension for PPQ Pistols
    $60.99 $34.99 Save $26.00
  22. Timber Creek Outdoors Magazine Extension for Gen 4 / Gen 5 17, 19, and 34 Pistols - Black
    Timber Creek Outdoors Magazine Extension for Gen 4 / Gen 5 Glock 17, 19, and 34 Magazines
    (2)
    $49.99 $26.99 $29.99 Save $23.00
  23. TangoDown Vickers Tactical Glock G43 +2 Round Magazine Extension - BLK
    TangoDown Vickers Tactical +2 Round Magazine Extension for Glock G43 Magazines
    (1)
    $16.99
  29. Mec-Gar +2 Aluminum Extended Base Pad for Mags w/ Polymer Floorplate - BLK
    Mec-Gar +2 Aluminum Extended Base Pad for Mags w/ Polymer Floorplate
    $33.99 $36.99 $20.99 $21.99 Save $15.00
  31. Tyrant Designs Glock 43 +2 Magazine Extension (BLACK) Right
    Tyrant Designs +2 Magazine Extension for Glock 43 Pistols
    $32.99 $20.99 $28.99 Save $12.00
  34. Tyrant Designs Glock 43 +3 Magazine Extension (BLACK) Right
    Tyrant Designs +3 Magazine Extension for Glock 43 Pistol Magazines
    (16)
    $34.99 $22.99 $31.99 Save $12.00
  39. Tyrant Designs +3 Magazine Extension for Sig Sauer P365 X-Macro Pistols - BLK
    Tyrant Designs +3 Magazine Extension for Sig Sauer P365 X-Macro Pistols
    (7)
    $37.99 $39.99 $34.99 $35.99 Save $4.00
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