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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. KRISS Vector Gen 2 9mm +23 Round Magazine Extension Kit for Glock 17 Magazines - FDE
    KRISS Vector Gen 2 9mm +23 Round Magazine Extension Kit for Glock 17 Magazines
    (59)
    $32.99

    Add to Cart to See Price.

    $25.99 Save $7.00
  2. KRISS Vector Gen 2 .45 ACP +17 Round Magazine Extension Kit (FDE) for Glock 21 Pistols
    KRISS Vector Gen 2 .45 ACP +17 Round Magazine Extension Kit for Glock 21 Pistols
    (6)
    $32.99 $28.99 $29.69 Save $4.00
  3. KRISS Vector Gen 2 9mm +23 Round Magazine Extension Kit for Glock 17 Magazines 3-Pack - FDE
    KRISS Vector Gen 2 9mm +23 Round Magazine Extension Kit for Glock 17 Magazines 3-Pack
    (8)
    $85.99

    Add to Cart to See Price.

    $67.99 Save $18.00
  4. 3 Pack - KRISS Vector Gen 2 .45 ACP +17 Round Magazine Extension Kit (FDE) for Glock Magazines
    3 Pack - KRISS Vector Gen 2 .45 ACP +17 Round Magazine Extension Kit for Glock Magazines
    (25)
    $85.99

    Add to Cart to See Price.

    $67.99 Save $18.00
  5. KRISS Vector Gen 2 10mm +18 Round Magazine Extension Kit (FDE) for Glock Magazines
    KRISS Vector Gen 2 10mm +18 Round Magazine Extension Kit for Glock 20 / 40 Pistols
    (3)
    $32.99

    Add to Cart to See Price.

    $25.99 Save $7.00
  6. 3 Pack - KRISS Vector Gen 2 10mm +18 Round Magazine Extension Kit (FDE) for Glock Magazines
    KRISS Vector Gen 2 10mm +18 Round Magazine Extension Kit for Glock Magazines 3-Pack
    (13)
    $85.99 $87.99

    Add to Cart to See Price.

    $67.99 Save $20.00
  7. Strike Industries +5 Aluminum Magazine Extension for Glock 19 Pistols - FDE
    Strike Industries +5 Aluminum Magazine Extension for Glock 19 Pistols
    (4)
    $38.99 $39.99 $36.99 $37.99 Save $3.00
  8. Kel-Tec PF9 One Round Extension Tan
    Kel-Tec PF9 One Round Extension
    (39)
    $22.99 $12.99 $16.99 Save $10.00
  9. Timber Creek Outdoors Magazine Extension for Gen 4 / Gen 5 17, 19, and 34 Pistols - Flat Dark Earth
    Timber Creek Outdoors Magazine Extension for Gen 4 / Gen 5 Glock 17, 19, and 34 Magazines
    (2)
    $49.99 $29.99 $31.99 Save $20.00
  10. Timber Creek Outdoors Sig Sauer P320 Magazine Extension Plate - FDE
    Timber Creek Outdoors Sig Sauer P320 Magazine Extension Plate
    (1)
    $49.99 $29.99 $31.99 Save $20.00
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