My Cart ()
Back Close
Filters
Brand
  1. Apex Tactical 1 item
  2. Backup Tactical 1 item
  3. Carlson's Choke Tubes 27 items
  4. CMMG 1 item
  5. Die Free Co 1 item
  6. FAB Defense 1 item
  7. Ghost Inc 12 items
  8. Kel-Tec 2 items
  9. Kimber 1 item
  10. KRISS USA 6 items
  11. Lancer Systems 6 items
  12. Lone Wolf Arms 2 items
  13. Mec-Gar 13 items
  14. Odin Works 4 items
  15. Pachmayr 1 item
  16. Panzer Arms 2 items
  17. Pearce Grip 11 items
  18. ProMag Magazines 2 items
  19. Shadow Systems 1 item
  20. Shield Arms 10 items
  21. Strike Industries 10 items
  22. Sylvan Arms 1 item
  23. TangoDown Inc. 2 items
  24. Timber Creek Outdoors 3 items
  25. Tyrant Designs 10 items
  26. Walther 5 items
  27. Warne Scope Rings 12 items
  28. XTech Tactical 14 items
Color
  1. Aluminum 4 items
  2. Black 152 items
  3. Blue 22 items
  4. Brass 2 items
  5. Burnt Bronze 3 items
  6. Coyote 1 item
  7. Dark Earth 4 items
  8. Flat Dark Earth 15 items
  9. Gold 12 items
  10. Gray 17 items
  11. Nickel 1 item
  12. ODA Green 2 items
  13. Olive Drab Green 6 items
  14. Orange 7 items
  15. Purple 3 items
  16. Red 28 items
  17. Robin Egg Blue 3 items
  18. Silver 1 item
  19. Tungsten 3 items
  20. White 6 items
Platform
  1. AR-15 3 items
  2. Benelli 10 items
  3. Beretta 3 items
  4. Browning 3 items
  5. Canik 1 item
  6. CZ 8 items
  7. Double Stack Pistol 1 item
  8. FN 2 items
  9. Franchi 2 items
  10. Glock 69 items
  11. Heckler & Koch 2 items
  12. Mossberg 3 items
  13. Panzer Arms 2 items
  14. Remington 6 items
  15. Shotgun 28 items
  16. Sig Sauer 12 items
  17. Single Stack Pistol 3 items
  18. Smith & Wesson 7 items
  19. Springfield Armory 8 items
  20. Stoeger 1 item
  21. Taurus 1 item
  22. Tristar 2 items
  23. Walther 5 items
  24. Winchester 2 items
Caliber
  1. 10mm Auto 2 items
  2. 12 Gauge 1 item
  3. 223 Remington 3 items
  4. 300 AAC Blackout 1 item
  5. 380 Auto (ACP) 1 item
  6. 40 S&W 8 items
  7. 45 Auto (ACP) 2 items
  8. 5.56mm NATO 3 items
  9. 5.7 x 28mm 1 item
  10. 9mm Luger 33 items
Capacity
  1. 1-Round 2 items
  2. 2-Round 13 items
  3. 3-Round 6 items
  4. 4-Round 7 items
  5. 5-Round 19 items
  6. 6-Round 6 items
  7. 7-Round 4 items
  8. 8-Round 4 items
  9. 9-Round 1 item
  10. 10-Round 1 item
  11. 17-Round 2 items
  12. 18-Round 2 items
  13. 23-Round 2 items
  14. 40-Round 1 item
Material
  1. Aluminum 50 items
  2. Brass 1 item
  3. Carbon Fiber / Aluminum 4 items
  4. Polymer 60 items
  5. Stainless Steel 28 items
Inventory
  1. In Stock 131 items
  2. Out of Stock 31 items
Customer Rating
  1. 5
    38 items
  2. 4
    & up     66 items
  3. 3
    & up     76 items
  4. 2
    & up     82 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
  12. Warne 9mm / 40 +3 / 2 Magazine Extension for S&W M&P
    Warne 9mm / 40 +3 / 2 Magazine Extension for S&W M&P
    Out of stock
    $39.99 $34.99 Save $5.00
  13. Shadow Systems CR920X +3 Magazine Extension Kit
    Shadow Systems CR920X +3 Magazine Extension Kit
    Out of stock
    (1)
    $30.99 $25.99 Save $5.00
  14. Tyrant Designs 9mm +5 Magazine Extension for Springfield Echelon Pistols
    Tyrant Designs 9mm +5 Magazine Extension for Springfield Echelon Pistols
    Out of stock
    (5)
    $39.99 $32.99 $35.99 Save $7.00
  15. Warne 9mm +4 Magazine Extension for CZ 75
    Warne 9mm +4 Magazine Extension for CZ 75
    Out of stock
    (1)
    $39.99 $29.99 Save $10.00
  20. Shield Arms +5 Magazine Extension for Magpul Gen 3 AR-15 PMAGs
    Shield Arms +5 Magazine Extension for Magpul Gen 3 AR-15 PMAGs
    Out of stock
    $43.99
  22. Tyrant Designs +3 Magazine Extension for Sig Sauer P365 X-Macro Pistols
    Tyrant Designs +3 Magazine Extension for Sig Sauer P365 X-Macro Pistols
    Out of stock
    (7)
    $37.99 $39.99 $34.99 $35.99 Save $4.00
  24. Timber Creek Outdoors Sig Sauer P365 Magazine Extension Plate
    Timber Creek Outdoors Sig Sauer P365 Magazine Extension Plate
    Out of stock
    $49.99 $29.99 Save $20.00
  25. Odin Works Magpul GL9 Glock 17 / 19 / 26 Magazine Base Pad
    Odin Works Magpul GL9 Glock 17 / 19 / 26 Magazine Base Pad
    Out of stock
    $35.99 $33.99 Save $2.00
  26. Warne 9mm +3 Magazine Extension for CZ 75
    Warne 9mm +3 Magazine Extension for CZ 75
    Out of stock
    $39.99 $29.99 Save $10.00
  28. Walther Q-Series +2 Steel Extended Baseplate
    Walther Q-Series +2 Steel Extended Baseplate
    Out of stock
    $80.99 $73.99 Save $7.00
  40. Walther +2 Aluminum 9mm Magazine Extension for PPQ Pistols
    Walther +2 Aluminum 9mm Magazine Extension for PPQ Pistols
    Out of stock
    $60.99 $44.99 $46.99 Save $16.00
Page
Filter