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5KU

5Ku

5KU is a brand that specializes in producing aftermarket parts and accessories for airsoft guns. The company is based in Taiwan and was founded in 2006. 5KU produces a range of upgrade parts and accessories for airsoft guns, such as outer barrels, internal parts, and rail systems. These parts are designed to enhance the performance and reliability of airsoft guns, allowing players to customize their weapons to suit their specific needs and preferences. Most known for their folding stocks and tracers. If you are looking for accessories to upgrade your airsoft gun's aesthetic, be sure to give 5KU a look!

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  1. 5KU Tokyo Marui MWS GBBR Airsoft Outer Barrel (12.5 inch M4 Carbine) - 14mm CCW (Require AEG Spec Barrel Nut & Sight) 1
    5KU Tokyo Marui MWS GBBR Airsoft Outer Barrel (12.5 inch M4 Carbine) - 14mm CCW (Require AEG Spec Barrel Nut & Sight) 5KU-MWS-6
    5KU
    Special Price $19.35 Regular Price $21.99
    Save 12%
  2. 5KU Tokyo Marui MWS GBBR Airsoft Outer Barrel (14.5 inch M4 Carbine) - 14mm CCW (Require AEG Spec Barrel Nut & Sight) 1
    5KU Tokyo Marui MWS GBBR Airsoft Outer Barrel (14.5 inch M4 Carbine) - 14mm CCW (Require AEG Spec Barrel Nut & Sight) 5KU-MWS-7
    5KU
    Special Price $19.54 Regular Price $22.99
    Save 15%
  3. 5KU Tokyo Marui MWS GBBR Airsoft Outer Barrel (14.5inch Lightweight M4 Carbine)-14mm CCW (Require AEG Spec Barrel Nut) 1
    5KU Tokyo Marui MWS GBBR Airsoft Outer Barrel (14.5inch Lightweight M4 Carbine)-14mm CCW (Require AEG Spec Barrel Nut) 5KU-MWS-8
    5KU
    Special Price $20.23 Regular Price $22.99
    Save 12%
  4. 5KU Tokyo Marui MWS GBBR Airsoft Outer Barrel (14.5inch M4 Mid-length Carbine)-14mm CCW (Require AEG Spec Barrel Nut) 1
    5KU Tokyo Marui MWS GBBR Airsoft Outer Barrel (14.5inch M4 Mid-length Carbine)-14mm CCW (Require AEG Spec Barrel Nut) 5KU-MWS-9
    5KU
    $22.99
  5. 5KU Tokyo Marui MWS GBBR Airsoft Outer Barrel (16 inch M4 Carbine)-14mm CCW (Require AEG Spec Barrel Nut) 1
    5KU Tokyo Marui MWS GBBR Airsoft Outer Barrel (16 inch M4 Carbine)-14mm CCW (Require AEG Spec Barrel Nut) 5KU-MWS-11
    5KU
    Special Price $21.99 Regular Price $24.99
    Save 12%
  6. 5KU Tokyo Marui MWS GBBR Airsoft Outer Barrel (16inch Lightweight M4 Mid-length Carbine)-14mm CCW (Require AEG Barrel Nut) 1
    5KU Tokyo Marui MWS GBBR Airsoft Outer Barrel (16inch Lightweight M4 Mid-length Carbine)-14mm CCW (Require AEG Barrel Nut) 5KU-MWS-12
    5KU
    Special Price $21.99 Regular Price $24.99
    Save 12%
  7. 5KU Tokyo Marui MWS GBBR Airsoft Outer Barrel (16 inch M4 Mid-length Carbine)-14mm CCW (Require AEG Spec Barrel Nut) 1
    5KU Tokyo Marui MWS GBBR Airsoft Outer Barrel (16 inch M4 Mid-length Carbine)-14mm CCW (Require AEG Spec Barrel Nut) 5KU-MWS-10
    5KU
    Special Price $22.49 Regular Price $24.99
    Save 10%
  8. 5KU Aluminum Barrel (18 inch M4 Mid-length Carbine) for Tokyo Marui M4 MWS (14mm CCW) (Require AEG Barrel Nut) 1
    5KU Tokyo Marui MWS GBBR Airsoft Outer Barrel (18 inch M4 Mid-length Carbine) - 14mm CCW (Require AEG Barrel Nut) 5KU-MWS-13
    5KU
    Special Price $23.39 Regular Price $25.99
    Save 10%
  9. 5KU Tokyo Marui MWS GBBR Airsoft Outer Barrel (7 inch CQB) - 14mm CCW (Require AEG Spec Barrel Nut & Sight) 1
    5KU Tokyo Marui MWS GBBR Airsoft Outer Barrel (7 inch CQB) - 14mm CCW (Require AEG Spec Barrel Nut & Sight) Out of Stock 5KU-MWS-1
    5KU
    $16.99
  10. 5KU SAS Front Kit for Tokyo Marui G17 / G18 GBB 1
    5KU SAS Front Kit for Tokyo Marui G17 / G18 GBB Out of Stock 5KU-GB-289
    5KU
    $28.99
  11. 5KU Tokyo Marui MWS GBBR Airsoft Outer Barrel (20 inch, Aluminum) - 14mm CCW (Require AEG Spec Barrel Nut) 0
    5KU Tokyo Marui MWS GBBR Airsoft Outer Barrel (20 inch, Aluminum) - 14mm CCW (Require AEG Spec Barrel Nut) 5KU-MWS-14
    5KU
    $26.99
  12. 5KU Tokyo Marui MWS GBBR Airsoft Outer Barrel (8.7 inch CQB, Aluminum)-14mm CCW (Require AEG Spec Barrel Nut) 0
    5KU Tokyo Marui MWS GBBR Airsoft Outer Barrel (8.7 inch CQB, Aluminum)-14mm CCW (Require AEG Spec Barrel Nut) Out of Stock 5KU-MWS-2
    5KU
    $16.99
  13. 5KU Tokyo Marui MWS GBBR Airsoft Outer Barrel (10 inch CQB, Aluminum) - 14mm CCW (Require AEG Spec Barrel Nut & Sight) 0
    5KU Tokyo Marui MWS GBBR Airsoft Outer Barrel (10 inch CQB, Aluminum) - 14mm CCW (Require AEG Spec Barrel Nut) Out of Stock 5KU-MWS-3
    5KU
    $17.99
  14. 5KU Tokyo Marui MWS GBBR Airsoft Outer Barrel (10.3 inch CQB, Aluminum) - 14mm CCW (Require AEG Spec Barrel Nut) 0
    5KU Tokyo Marui MWS GBBR Airsoft Outer Barrel (10.3 inch CQB, Aluminum) - 14mm CCW (Require AEG Spec Barrel Nut) Out of Stock 5KU-MWS-4
    5KU
    $17.99
  15. 5KU Tokyo Marui MWS GBBR Airsoft Outer Barrel (11.5 inch CQB, Aluminum) - 14mm CCW (Require AEG Spec Barrel Nut) 0
    5KU Tokyo Marui MWS GBBR Airsoft Outer Barrel (11.5 inch CQB, Aluminum) - 14mm CCW (Require AEG Spec Barrel Nut) Out of Stock 5KU-MWS-5
    5KU
    $18.99
  16. 5KU Tokyo Marui Hi Capa 5.1 GBB Airsoft Outer Barrel (Aluminum) - Blue 0
    5KU Tokyo Marui Hi Capa 5.1 GBB Airsoft Outer Barrel (Aluminum) - Blue Out of Stock 5KU-GB-520-BU
    5KU
    $23.99
  17. 5KU Tokyo Marui Hi Capa 5.1 GBB Airsoft Outer Barrel (Aluminum) - Red 0
    5KU Tokyo Marui Hi Capa 5.1 GBB Airsoft Outer Barrel (Aluminum) - Red Out of Stock 5KU-GB-520-RD
    5KU
    $23.99
  18. 5KU Tokyo Marui Hi Capa 5.1 Outer Barrel (Aluminum) - Silver 0
    5KU Tokyo Marui Hi Capa 5.1 GBB Airsoft Outer Barrel (Aluminum) - Silver 5KU-GB-520-SV
    5KU
    Special Price $21.11 Regular Price $23.99
    Save 12%
  19. 5KU Tokyo Marui Hi Capa 5.1 GBB Airsoft Outer Barrel (Aluminum) - Gold 0
    5KU Tokyo Marui Hi Capa 5.1 GBB Airsoft Outer Barrel (Aluminum) - Gold 5KU-GB-520-GD
    5KU
    $23.99
  20. 5KU Tokyo Marui Hi Capa 5.1 Outer Barrel (Aluminum) - Black 0
    5KU Tokyo Marui Hi Capa 5.1 GBB Airsoft Outer Barrel (Aluminum) - Black 5KU-GB-520-BK
    5KU
    Special Price $21.59 Regular Price $23.99
    Save 10%
  21. 5KU Tokyo Marui Hi Capa 5.1 Outer Barrel (Tornado, Aluminum) - Black 0
    5KU Tokyo Marui Hi Capa 5.1 GBB Airsoft Outer Barrel (Tornado, Aluminum) - Black Out of Stock 5KU-GB-521-BK
    5KU
    $23.99
  22. 5KU Tokyo Marui Hi Capa 5.1 Outer Barrel (Tornado, Aluminum) - Gloss Red 0
    5KU Tokyo Marui Hi Capa 5.1 GBB Airsoft Outer Barrel (Tornado, Aluminum) - Gloss Red 5KU-GB-521-BRD
    5KU
    Special Price $21.11 Regular Price $23.99
    Save 12%
  23. 5KU Tokyo Marui Hi Capa 5.1 Outer Barrel (Tornado, Aluminum) - Purple 0
    5KU Tokyo Marui Hi Capa 5.1 GBB Airsoft Outer Barrel (Tornado, Aluminum) - Purple Out of Stock 5KU-GB-521-PU
    5KU
    $34.99
  24. 5KU Tokyo Marui Hi Capa 5.1 Outer Barrel (Tornado, Aluminum) - Green 0
    5KU Tokyo Marui Hi Capa 5.1 GBB Airsoft Outer Barrel (Tornado, Aluminum) - Green Out of Stock 5KU-GB-521-GN
    5KU
    $23.99
  25. 5KU Tokyo Marui Hi Capa 5.1 Outer Barrel (Tornado, Aluminum) - Gold 0
    5KU Tokyo Marui Hi Capa 5.1 GBB Airsoft Outer Barrel (Tornado, Aluminum) - Gold Out of Stock 5KU-GB-521-GD
    5KU
    $23.99
  26. 5KU Tokyo Marui Hi Capa 5.1 Outer Barrel (Tornado, Aluminum) - Red 0
    5KU Tokyo Marui Hi Capa 5.1 GBB Airsoft Outer Barrel (Tornado, Aluminum) - Red Out of Stock 5KU-GB-521-RD
    5KU
    $23.99
  27. 5KU Tokyo Marui Hi Capa 5.1 GBB Airsoft Outer Barrel (Tornado, Aluminum) - Silver 0
    5KU Tokyo Marui Hi Capa 5.1 GBB Airsoft Outer Barrel (Tornado, Aluminum) - Silver Out of Stock 5KU-GB-521-SV
    5KU
    $23.99
  28. 5KU Tokyo Marui Hi Capa 5.1 Outer Barrel (Tornado, Aluminum) - Orange 0
    5KU Tokyo Marui Hi Capa 5.1 GBB Airsoft Outer Barrel (Tornado, Aluminum) - Orange Out of Stock 5KU-GB-521-OR
    5KU
    $23.99
  29. 5KU Tokyo Marui Hi Capa 5.1 Outer Barrel (Tornado, Aluminum) - Blue 0
    5KU Tokyo Marui Hi Capa 5.1 GBB Airsoft Outer Barrel (Tornado, Aluminum) - Blue Out of Stock 5KU-GB-521-BU
    5KU
    $23.99
  30. 5KU Tokyo Marui Hi Capa 5.1 Outer Barrel (Tornado, Aluminum) - Gloss Gold 0
    5KU Tokyo Marui Hi Capa 5.1 GBB Airsoft Outer Barrel (Tornado, Aluminum) - Gloss Gold 5KU-GB-521-BGD
    5KU
    Special Price $21.11 Regular Price $23.99
    Save 12%
  31. 5KU Tokyo Marui Hi Capa 4.3 GBB Airsoft Outer Barrel (Aluminum) - Black 0
    5KU Tokyo Marui Hi Capa 4.3 GBB Airsoft Outer Barrel (Aluminum) - Black Out of Stock 5KU-GB-522-BK
    5KU
    $23.99
  32. Image
    5KU Tokyo Marui Hi Capa 4.3 Outer Barrel (Aluminum) - Purple Out of Stock 5KU-GB-522-PU
    5KU
    $23.99
  33. Image
    5KU Tokyo Marui Hi Capa 4.3 Outer Barrel (Aluminum) - Gold Out of Stock 5KU-GB-522-GD
    5KU
    $23.99
  34. Image
    5KU Tokyo Marui Hi Capa 4.3 GBB Airsoft Outer Barrel (Aluminum) - Red Out of Stock 5KU-GB-522-RD
    5KU
    $23.99
  35. 5KU Tokyo Marui Hi Capa 4.3 GBB Airsoft Outer Barrel (Aluminum) - Silver 0
    5KU Tokyo Marui Hi Capa 4.3 GBB Airsoft Outer Barrel (Aluminum) - Silver Out of Stock 5KU-GB-522-SV
    5KU
    $23.99
  36. Image
    5KU Tokyo Marui Hi Capa 4.3 Outer Barrel (Aluminum) - Blue Out of Stock 5KU-GB-522-BU
    5KU
    $23.99
  37. Image
    5KU Tokyo Marui Hi Capa 4.3 Outer Barrel (Aluminum) - Green Out of Stock 5KU-GB-522-GN
    5KU
    $23.99
  38. Image
    5KU Tokyo Marui Hi Capa 4.3 Outer Barrel (Tornado, Aluminum) - Silver Out of Stock 5KU-GB-523-SV
    5KU
    $23.99
  39. 5KU Tokyo Marui Hi Capa 4.3 Outer Barrel (Tornado, Aluminum) - Gold 0
    5KU Tokyo Marui Hi Capa 4.3 Outer Barrel (Tornado, Aluminum) - Gold Out of Stock 5KU-GB-523-GD
    5KU
    $23.99
  40. Image
    5KU Tokyo Marui Hi Capa 4.3 Outer Barrel (Tornado, Aluminum) - Red Out of Stock 5KU-GB-523-RD
    5KU
    $23.99
  41. Image
    5KU Tokyo Marui Hi Capa 4.3 Outer Barrel (Tornado, Aluminum) - Orange Out of Stock 5KU-GB-523-OR
    5KU
    $23.99
  42. Image
    5KU Tokyo Marui Hi Capa 4.3 Outer Barrel (Tornado, Aluminum) - Green Out of Stock 5KU-GB-523-GN
    5KU
    $23.99
  43. 5KU Tokyo Marui Hi Capa 4.3 GBB Airsoft Outer Barrel (Tornado, Aluminum) - Black 0
    5KU Tokyo Marui Hi Capa 4.3 GBB Airsoft Outer Barrel (Tornado, Aluminum) - Black Out of Stock 5KU-GB-523-BK
    5KU
    $23.99
  44. Image
    5KU Tokyo Marui Hi Capa 4.3 Outer Barrel (Tornado, Aluminum) - Blue Out of Stock 5KU-GB-523-BU
    5KU
    $23.99
  45. Image
    5KU Tokyo Marui Hi Capa 4.3 Outer Barrel (Tornado, Aluminum) - Purple Out of Stock 5KU-GB-523-PU
    5KU
    $23.99
  46. 5KU Tokyo Marui Hi Capa 4.3 Outer Barrel (Aluminum) - Orange 0
    5KU Tokyo Marui Hi Capa 4.3 Outer Barrel (Aluminum) - Orange 5KU-GB-522-OR
    5KU
    Special Price $21.11 Regular Price $23.99
    Save 12%
  47. 5KU Action Army AAP 01 GBB Airsoft Outer Barrel (Type A, Aluminum, Black) 0
    5KU Action Army AAP01 GBB Airsoft Outer Barrel (Type A, Aluminum, Black) 5KU-ABAAP-007-BK
    5KU
    $11.99
  48. 5KU Action Army AAP 01 GBB Airsoft Outer Barrel (Type A, Aluminum, Gold) 0
    5KU Action Army AAP01 GBB Airsoft Outer Barrel (Type A, Aluminum, Gold) 5KU-ABAAP-007-GD
    5KU
    Special Price $10.55 Regular Price $11.99
    Save 12%
  49. 5KU Action Army AAP 01 GBB Airsoft Outer Barrel (Type A, Aluminum, Blue) 0
    5KU Action Army AAP01 GBB Airsoft Outer Barrel (Type A, Aluminum, Blue) Out of Stock 5KU-ABAAP-007-BU
    5KU
    $11.99
  50. 5KU Action Army AAP 01 GBB Airsoft Outer Barrel (Type A, Aluminum, Red) 0
    5KU Action Army AAP01 GBB Airsoft Outer Barrel (Type A, Aluminum, Red) 5KU-ABAAP-007-RD
    5KU
    Special Price $10.55 Regular Price $11.99
    Save 12%
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