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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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  2. Kel-Tec P11 Black Grip Extension
    Kel-Tec P11 Grip Extension
    (37)
    $7.99
  6. Strike Industries +5 Magazine Extension for PMAG Gen M3 - Black
    Strike Industries +5 Magazine Extension for PMAG Gen M3
    $12.99
  14. 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
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