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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. Shield Arms +5/+4 Magazine Extension for Glock 17 / 22 Pistols - Gray
    Shield Arms +5/+4 Magazine Extension for Glock 17 / 22 Pistols
    (3)
    $39.99 $35.99 $36.99 Save $4.00
  2. Tyrant Designs 9mm +5 Magazine Extension for Springfield Echelon Pistols - Grey
    Tyrant Designs 9mm +5 Magazine Extension for Springfield Echelon Pistols
    (4)
    $39.99 $32.99 $35.99 Save $7.00
  3. Panzer Arms +2 Extended Magazine Tube for 12GA Panzer / Benelli M4 Shotguns - GRY
    Panzer Arms +2 Extended Magazine Tube for 12GA Panzer / Benelli M4 Shotguns
    (25)
    $26.99 $27.99 $18.99 $22.99 Save $9.00
  4. Tyrant Designs Magazine Extension for Glock 19 / 23 Pistols - GRY
    Tyrant Designs Magazine +5 / 4 Extension for Glock 19 / 23 Pistols
    (22)
    $39.99 $33.99 $35.99 Save $6.00
  5. Tyrant Designs 9mm +4 Magazine Extension for Glock 43X / 48 Pistols - GRY
    Tyrant Designs 9mm +4 Magazine Extension for Glock 43X / 48 Pistols
    (17)
    $39.99 $35.99 Save $4.00
  6. Warne Scope Mounts +5 Extended Base Pad for Sig Sauer P320 Pistols - Gray
    Warne Scope Mounts +5 Extended Base Pad for Sig Sauer P320 Pistols
    (1)
    $47.99 $49.99 $29.99 $39.99 Save $20.00
  7. Tyrant Designs +4/5 Magazine Extension for Glock 17, 22, 34, 35, 19X, 45 Pistols - Gray
    Tyrant Designs +4/5 Magazine Extension for Glock 17, 22, 34, 35, 19X, 45 Pistols
    (12)
    $39.99 $35.99 Save $4.00
  8. Tyrant Designs Glock 43 +3 Magazine Extension (GREY) Right
    Tyrant Designs +3 Magazine Extension for Glock 43 Pistol Magazines
    (16)
    $34.99 $26.99 $31.99 Save $8.00
  9. Tyrant Designs S&W M&P Shield Plus 2 Aluminum Magazine Extension Gray Left View
    Tyrant Designs S&W M&P Shield +2 Aluminum Magazine Extension
    (19)
    $29.99 $19.99 $26.99 Save $10.00
  10. TangoDown Vickers Tactical Glock G43 +2 Round Magazine Extension - Glock Gray
    TangoDown Vickers Tactical +2 Round Magazine Extension for Glock G43 Magazines
    (1)
    $16.99
  11. Tyrant Designs +3 Magazine Extension for Sig Sauer P365 X-Macro Pistols - GRY
    Tyrant Designs +3 Magazine Extension for Sig Sauer P365 X-Macro Pistols
    (7)
    $37.99 $39.99 $34.99 $35.99 Save $4.00
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