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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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  1. Kel-Tec PF9 One Round Extension Black
    Kel-Tec PF9 One Round Extension
    (39)
    $22.99 $12.99 $16.99 Save $10.00
  3. Shield Arms Magazine Extension +5 for S15 Magazines for Glock 43X / 48 Pistols
    Shield Arms S15 +5 Magazine Extension
    (3)
    $39.99 $34.99 $35.99 Save $5.00
  4. Tyrant Designs +4/5 Magazine Extension for Glock 17, 22, 34, 35, 19X, 45 Pistols - Black
    Tyrant Designs +4/5 Magazine Extension for Glock 17, 22, 34, 35, 19X, 45 Pistols
    (12)
    $39.99 $35.99 Save $4.00
  6. Timber Creek Outdoors Magazine Extension for Gen 4 / Gen 5 17, 19, and 34 Pistols - Black
    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
  18. Strike Industries +5 Extended Magazine Plate for Sig Sauer P320 Pistols - BLK
    Strike Industries +5 Extended Magazine Plate for Sig Sauer P320 Pistols
    $41.99 $39.99 Save $2.00
  19. Timber Creek Outdoors Sig Sauer P320 Magazine Extension Plate - BLK
    Timber Creek Outdoors Sig Sauer P320 Magazine Extension Plate
    (1)
    $49.99 $29.99 $31.99 Save $20.00
  21. Walther Taylor Freelance +6 Competition 9mm / .40cal Magazine Extension for PPQ Pistols - BLK
    Walther Taylor Freelance +6 Competition 9mm / .40cal Magazine Extension for PPQ Pistols
    $60.99 $34.99 Save $26.00
  23. Tyrant Designs Glock 43 +2 Magazine Extension (BLACK) Right
    Tyrant Designs +2 Magazine Extension for Glock 43 Pistols
    $32.99 $20.99 $28.99 Save $12.00
  24. Tyrant Designs Glock 43 +3 Magazine Extension (BLACK) Right
    Tyrant Designs +3 Magazine Extension for Glock 43 Pistol Magazines
    (16)
    $34.99 $26.99 $31.99 Save $8.00
  25. Tyrant Designs S&W M&P Shield Plus 2 Aluminum Magazine Extension Black Left View
    Tyrant Designs S&W M&P Shield +2 Aluminum Magazine Extension
    (19)
    $29.99 $19.99 $26.99 Save $10.00
  26. Odin Works +5 Magazine Extension for Sig Sauer P320 Pistols - Black
    Odin Works +5 Magazine Extension for Sig Sauer P320 Pistols
    $35.99 $39.99 $33.99 $38.99 Save $2.00
  27. Odin Works 9mm / .40 SW +5/4 Magazine Extension for Smith & Wesson M&P Pistols - Black
    Odin Works 9mm / .40 SW +5/4 Magazine Extension for Smith & Wesson M&P Pistols
    $35.99 $39.99 $33.99 $37.99 Save $2.00
  28. Mec-Gar +2 Aluminum Extended Base Pad for Mags w/ Metal Floorplate - BLK
    Mec-Gar +2 Aluminum Extended Base Pad for Mags w/ Metal Floorplate
    $33.99 $36.99 $20.99 $23.99 Save $13.00
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