My Cart ()
Back Close
Filters
Now Shopping by
  1. Customer Rating
    2 stars & up
Brand
  1. Apex Tactical 1 item
  2. Backup Tactical 1 item
  3. Carlson's Choke Tubes 5 items
  4. CMMG 1 item
  5. Die Free Co 1 item
  6. FAB Defense 1 item
  7. Ghost Inc 8 items
  8. Kel-Tec 2 items
  9. Kimber 1 item
  10. KRISS USA 6 items
  11. Lancer Systems 1 item
  12. Mec-Gar 7 items
  13. Odin Works 2 items
  14. Pachmayr 1 item
  15. Panzer Arms 2 items
  16. Pearce Grip 8 items
  17. Shadow Systems 1 item
  18. Shield Arms 3 items
  19. Strike Industries 9 items
  20. TangoDown Inc. 2 items
  21. Timber Creek Outdoors 2 items
  22. Tyrant Designs 7 items
  23. Walther 1 item
  24. Warne Scope Rings 7 items
  25. XTech Tactical 4 items
Color
  1. Aluminum 2 items
  2. Black 80 items
  3. Blue 14 items
  4. Brass 1 item
  5. Burnt Bronze 2 items
  6. Coyote 1 item
  7. Dark Earth 4 items
  8. Flat Dark Earth 13 items
  9. Gold 9 items
  10. Gray 13 items
  11. Nickel 1 item
  12. ODA Green 1 item
  13. Olive Drab Green 4 items
  14. Orange 4 items
  15. Purple 2 items
  16. Red 21 items
  17. Robin Egg Blue 2 items
  18. Silver 1 item
  19. Tungsten 2 items
  20. White 6 items
Platform
  1. AR-15 2 items
  2. Benelli 1 item
  3. Browning 1 item
  4. Canik 1 item
  5. CZ 1 item
  6. Double Stack Pistol 1 item
  7. FN 2 items
  8. Glock 46 items
  9. Heckler & Koch 2 items
  10. Mossberg 1 item
  11. Panzer Arms 2 items
  12. Remington 1 item
  13. Shotgun 4 items
  14. Sig Sauer 6 items
  15. Single Stack Pistol 3 items
  16. Smith & Wesson 4 items
  17. Springfield Armory 2 items
  18. Stoeger 1 item
  19. Walther 1 item
Caliber
  1. 10mm Auto 2 items
  2. 12 Gauge 1 item
  3. 223 Remington 2 items
  4. 300 AAC Blackout 1 item
  5. 380 Auto (ACP) 1 item
  6. 40 S&W 5 items
  7. 45 Auto (ACP) 2 items
  8. 5.56mm NATO 2 items
  9. 5.7 x 28mm 1 item
  10. 9mm Luger 20 items
Capacity
  1. 1-Round 1 item
  2. 2-Round 6 items
  3. 3-Round 1 item
  4. 4-Round 3 items
  5. 5-Round 10 items
  6. 6-Round 1 item
  7. 10-Round 1 item
  8. 17-Round 2 items
  9. 18-Round 2 items
  10. 23-Round 2 items
  11. 40-Round 1 item
Material
  1. Aluminum 27 items
  2. Polymer 38 items
  3. Stainless Steel 5 items
Inventory
  1. In Stock 78 items
  2. Out of Stock 6 items
Customer Rating
  1. 5
    37 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!

Page
  1. Mec-Gar +2 Aluminum Extended Base Pad for Mags w/ Metal Floorplate
    Mec-Gar +2 Aluminum Extended Base Pad for Mags w/ Metal Floorplate
    (1)
    $33.99 $36.99 $21.49 $23.99 Save $13.00
  2. Warne Scope Mounts +5 Extended Base Pad for Sig Sauer P320 Pistols
    Warne Scope Mounts +5 Extended Base Pad for Sig Sauer P320 Pistols
    (1)
    $47.99 $49.99 $29.99 $39.99 Save $20.00
  5. Backup Tactical +5 Magazine Extension for Glock 19 / 23 Pistols
    Backup Tactical +5 Magazine Extension for Glock 19 / 23 Pistols
    (1)
    $59.99 $54.99 Save $5.00
  7. Walther Taylor Freelance +0 Competition 9mm / .40cal Magazine Extension for PPQ Pistols
    Walther Taylor Freelance +0 Competition 9mm / .40cal Magazine Extension for PPQ Pistols
    (1)
    $30.99 $35.99 $25.99 Save $10.00
  9. Tyrant Designs +3 Magazine Extension for Glock 43 Pistol Magazines
    Tyrant Designs +3 Magazine Extension for Glock 43 Pistol Magazines
    (16)
    $34.99 $26.99 $31.99 Save $8.00
  17. Kel-Tec PF9 One Round Extension
    Kel-Tec PF9 One Round Extension
    (37)
    $22.99 $12.99 $16.99 Save $10.00
  18. Kel-Tec P11 Grip Extension
    Kel-Tec P11 Grip Extension
    (37)
    $7.99
  21. TangoDown Vickers Tactical +2 Round Magazine Extension for Glock G43 Magazines
    TangoDown Vickers Tactical +2 Round Magazine Extension for Glock G43 Magazines
    (1)
    $16.99
  23. Tyrant Designs S&W M&P Shield +2 Aluminum Magazine Extension
    Tyrant Designs S&W M&P Shield +2 Aluminum Magazine Extension
    (19)
    $29.99 $19.99 $26.99 Save $10.00
  25. 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
  30. 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
  33. Warne Scope Mounts +5 / +4 Extended Base Pad for Glock 17 / 22
    Warne Scope Mounts +5 / +4 Extended Base Pad for Glock 17 / 22
    (3)
    $49.99 $39.99 Save $10.00
  34. Warne Scope Mounts +3 / +2 Extended Base Pad for Glock 19 / 23
    Warne Scope Mounts +3 / +2 Extended Base Pad for Glock 19 / 23
    (3)
    $39.99 $29.99 $34.99 Save $10.00
  35. Warne Scope Mounts +5 / +4 Extended Base Pad for Glock 19 / 23
    Warne Scope Mounts +5 / +4 Extended Base Pad for Glock 19 / 23
    (1)
    $49.99 $29.99 $39.99 Save $20.00
  38. 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
  39. Odin Works +5 Magazine Extension for Glock 17 / 22 Pistols
    Odin Works +5 Magazine Extension for Glock 17 / 22 Pistols
    Out of stock
    (1)
    $35.99 $39.99 $33.99 $37.99 Save $2.00
  40. CMMG FN Five-seveN 10 Round Magazine Extension
    CMMG FN Five-seveN 10 Round Magazine Extension
    Out of stock
    (4)
    $15.99 $12.99 Save $3.00
Page
Filter