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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. Tyrant Designs +4/5 Magazine Extension for Glock 17, 22, 34, 35, 19X, 45 Pistols
    Tyrant Designs +4/5 Magazine Extension for Glock 17, 22, 34, 35, 19X, 45 Pistols
    Out of stock
    (14)
    $39.99 $29.99 $35.99 Save $10.00
  5. Strike Industries +5 Extended Magazine Plate for Sig Sauer P320 Pistols
    Strike Industries +5 Extended Magazine Plate for Sig Sauer P320 Pistols
    Out of stock
    $41.99 $39.99 Save $2.00
  6. Mec-Gar Plus-3 Adapter Set for Sig P228 Pistols
    Mec-Gar Plus-3 Adapter Set for Sig P228 Pistols
    Out of stock
    (1)
    $12.99 $9.49 Save $3.50
  7. Shield Arms Gen 2 / 3 S15 +2 Magazine Extension
    Shield Arms Gen 2 / 3 S15 +2 Magazine Extension
    Out of stock
    $34.99 $32.99 Save $2.00
  12. Warne 9mm +3 Magazine Extension for CZ 75
    Warne 9mm +3 Magazine Extension for CZ 75
    Out of stock
    $39.99 $29.99 Save $10.00
  15. 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 Save $16.00
  16. Walther Q-Series +2 Steel Extended Baseplate
    Walther Q-Series +2 Steel Extended Baseplate
    Out of stock
    $80.99 $71.99 Save $9.00
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