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  1. American Tactical Imports 1 item
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  2. 12 Gauge 1 item
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  9. 9mm Luger 34 items
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  9. 9-Round 1 item
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  13. 40-Round 1 item
Material
  1. Aluminum 50 items
  2. Brass 1 item
  3. Carbon Fiber / Aluminum 4 items
  4. Polymer 61 items
  5. Stainless Steel 28 items
Inventory
  1. In Stock 137 items
  2. Out of Stock 27 items
Customer Rating
  1. 5
    38 items
  2. 4
    & up     67 items
  3. 3
    & up     78 items
  4. 2
    & up     84 items

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 PF9 One Round Extension
    Kel-Tec PF9 One Round Extension
    (39)
    $22.99 $12.99 $16.99 Save $10.00
  6. 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
  8. Timber Creek Outdoors Magazine Extension for Gen 4 / Gen 5 Glock 17, 19, and 34 Magazines
    Timber Creek Outdoors Magazine Extension for Gen 4 / Gen 5 Glock 17, 19, and 34 Magazines
    (2)
    $49.99 $26.99 $29.99 Save $23.00
  15. Lancer Systems LSX Extended Shotgun Magazine Tube for Mossberg 590 / 835 Shotguns
    Lancer Systems LSX Extended Shotgun Magazine Tube for Mossberg 590 / 835 Shotguns
    $97.99 $135.99 $62.99 $79.99 Save $56.00
  16. Lancer Systems LSX Extended Shotgun Magazine Tube for Remington Shotguns
    Lancer Systems LSX Extended Shotgun Magazine Tube for Remington Shotguns
    $97.99 $135.99 $66.99 $79.99 Save $56.00
  18. Warne 9mm +2 Magazine Extension for Glock 43
    Warne 9mm +2 Magazine Extension for Glock 43
    Coupon Available
    $39.99 $34.99 Save $5.00
  23. Odin Works +5 Magazine Extension for Sig Sauer P320 Pistols
    Odin Works +5 Magazine Extension for Sig Sauer P320 Pistols
    (1)
    $35.99 $39.99 $33.99 $38.99 Save $2.00
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