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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. Strike Industries Aluminum +4 / +5 Magazine Extension for Glock 17 / 22 Pistols - Red
    Strike Industries Aluminum +4 / +5 Magazine Extension for Glock 17 / 22 Pistols
    (2)
    $38.99 $43.99 $35.99 $39.99 Save $4.00
  2. Shield Arms +5/+4 Magazine Extension for Glock 17 / 22 Pistols - Red
    Shield Arms +5/+4 Magazine Extension for Glock 17 / 22 Pistols
    (4)
    $39.99 $35.99 $36.99 Save $4.00
  3. Tyrant Designs +4/5 Magazine Extension for Glock 17, 22, 34, 35, 19X, 45 Pistols - Red
    Tyrant Designs +4/5 Magazine Extension for Glock 17, 22, 34, 35, 19X, 45 Pistols
    (13)
    $39.99 $35.99 Save $4.00
  4. Tyrant Designs Magazine +5 / 4 Extension for Glock 19 / 23 Pistols-Red
    Tyrant Designs Magazine +5 / 4 Extension for Glock 19 / 23 Pistols
    (22)
    $39.99 $33.99 $35.99 Save $6.00
  5. Tyrant Designs 9mm +4 Magazine Extension for Glock 43X / 48 Pistols - Red
    Tyrant Designs 9mm +4 Magazine Extension for Glock 43X / 48 Pistols
    (18)
    $39.99 $35.99 Save $4.00
  6. Shield Arms +5/+4 Magazine Extension for Glock 19 / 23 Pistols - Red
    Shield Arms +5/+4 Magazine Extension for Glock 19 / 23 Pistols
    $39.99 $35.99 Save $4.00
  7. Shield Arms S15 +5 Magazine Extension - Red
    Shield Arms S15 +5 Magazine Extension
    (3)
    $39.99 $34.99 $35.99 Save $5.00
  8. Tyrant Designs Glock 43 +3 Magazine Extension (RED) Right
    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 - Red
    Warne Scope Mounts +3 / +2 Extended Base Pad for Glock 17 / 22
    (1)
    $39.99 $29.99 Save $10.00
  10. Warne Scope Mounts +5 / +4 Extended Base Pad for Glock 19 / 23 - Red
    Warne Scope Mounts +5 / +4 Extended Base Pad for Glock 19 / 23
    (1)
    $49.99 $29.99 $39.99 Save $20.00
  11. Tyrant Designs +2 Magazine Extension for Glock 43 Pistols - RED
    Tyrant Designs +2 Magazine Extension for Glock 43 Pistols
    $32.99 $20.99 $28.99 Save $12.00
  12. Backup Tactical +5 Magazine Extension for Glock 19 / 23 Pistols - Red
    Backup Tactical +5 Magazine Extension for Glock 19 / 23 Pistols
    (1)
    $59.99 $54.99 Save $5.00
  13. Odin Works +5 Magazine Extension for Glock 17 / 22 Pistols - Red
    Odin Works +5 Magazine Extension for Glock 17 / 22 Pistols
    Out of stock
    (1)
    $35.99 $39.99 $33.99 $37.99 Save $2.00
  14. Tyrant Designs Glock 43 +1 Magazine Extension (RED) Right
    Tyrant Designs +1 Magazine Extension for Glock 43 Pistols
    $29.95 $29.99 $19.99 $26.99 Save $10.00
  15. Warne Scope Mounts +5 / +4 Extended Base Pad for Glock 17 / 22 - Red
    Warne Scope Mounts +5 / +4 Extended Base Pad for Glock 17 / 22
    Out of stock
    (3)
    $49.99 $39.99 Save $10.00
  16. Odin Works Magpul GL9 Glock 17 / 19 / 26 Magazine Base Pad - Red
    Odin Works Magpul GL9 Glock 17 / 19 / 26 Magazine Base Pad
    Out of stock
    $35.99 $33.99 Save $2.00
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