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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!

  2. 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
  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
  4. Die Free Co Dos Boot +2 Magazine Extension for Magpul Gen3 AR-15 PMAGs 3-Pack
    Die Free Co Dos Boot +2 Magazine Extension for Magpul Gen3 AR-15 PMAGs 3-Pack
    (2)
    $20.99
  5. KRISS Vector Gen 2 10mm +18 Round Magazine Extension Kit for Glock 20 / 40 Pistols
    KRISS Vector Gen 2 10mm +18 Round Magazine Extension Kit for Glock 20 / 40 Pistols
    (3)
    $32.99

    Add to Cart to See Price.

    $25.99 Save $7.00
  9. Tyrant Designs Magazine +5 / 4 Extension for Glock 19 / 23 Pistols
    Tyrant Designs Magazine +5 / 4 Extension for Glock 19 / 23 Pistols
    (22)
    $39.99 $33.99 $35.99 Save $6.00
  10. Warne Scope Mounts +5 Extended Base Pad for Sig Sauer P320 Pistols
    Warne Scope Mounts +5 Extended Base Pad for Sig Sauer P320 Pistols
    (1)
    $47.99 $49.99 $29.99 $39.99 Save $20.00
  12. Strike Industries +5 Aluminum Magazine Extension for Glock 19 Pistols
    Strike Industries +5 Aluminum Magazine Extension for Glock 19 Pistols
    (4)
    $38.99 $39.99 $36.99 $37.99 Save $3.00
  15. Shield Arms S15 +5 Magazine Extension
    Shield Arms S15 +5 Magazine Extension
    (3)
    $39.99 $34.99 $35.99 Save $5.00
  17. 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
  20. 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
  21. 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
  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
  27. 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
  28. 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
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