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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. Shadow Systems CR920X +3 Magazine Extension Kit
    Shadow Systems CR920X +3 Magazine Extension Kit
    Out of stock
    (1)
    $30.99 $25.99 Save $5.00
  2. Tyrant Designs 9mm +5 Magazine Extension for Springfield Echelon Pistols - BLK
    Tyrant Designs 9mm +5 Magazine Extension for Springfield Echelon Pistols
    Out of stock
    (4)
    $39.99 $32.99 $35.99 Save $7.00
  3. Warne 9mm +4 Magazine Extension for CZ 75
    Warne 9mm +4 Magazine Extension for CZ 75
    Out of stock
    (1)
    $39.99 $29.99 Save $10.00
  4. 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
    Out of stock
    (7)
    $37.99 $39.99 $34.99 $35.99 Save $4.00
  8. TangoDown Vickers Tactical Glock G43 +2 Round Magazine Extension - BLK
    TangoDown Vickers Tactical +2 Round Magazine Extension for Glock G43 Magazines
    Out of stock
    (1)
    $16.99
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