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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 1911 Punisher Compensator For Tokyo Marui 1911 Style 2 - Black 1
    5KU 1911 Punisher Compensator For Tokyo Marui 1911 Style 2 - Black 5KU-GB-440-BK
    5KU
    Special Price $12.59 Regular Price $13.99
    Save 10%
  2. 5KU 1911 Punisher Compensator For Tokyo Marui 1911 Style 2 - Silver 1
    5KU 1911 Punisher Compensator For Tokyo Marui 1911 Style 2 - Silver 5KU-GB-440-S
    5KU
    Special Price $11.19 Regular Price $13.99
    Save 20%
  3. 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 $19.79 Regular Price $21.99
    Save 10%
  4. 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 $20.69 Regular Price $22.99
    Save 10%
  5. 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 $20.69 Regular Price $22.99
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  6. 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
    Special Price $20.69 Regular Price $22.99
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  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 $19.99 Regular Price $24.99
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  8. 5KU Threaded Barrel Protector (Diagonals Knurled) - 14mm CCW (Black) 1
    5KU Threaded Barrel Protector (Diagonals Knurled) - 14mm CCW (Black) 5KU-GB-456-BK
    5KU
    Special Price $6.29 Regular Price $6.99
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  9. 5KU Threaded Barrel Protector (Diagonals Knurled) - 14mm CCW (Gold) 1
    5KU Threaded Barrel Protector (Diagonals Knurled) - 14mm CCW (Gold) 5KU-GB-456-G
    5KU
    Special Price $6.29 Regular Price $6.99
    Save 10%
  10. 5KU Threaded Barrel Protector (Diagonals Knurled) - 14mm CCW (Silver) 1
    5KU Threaded Barrel Protector (Diagonals Knurled) - 14mm CCW (Silver) 5KU-GB-456-S
    5KU
    Special Price $6.29 Regular Price $6.99
    Save 10%
  11. GK Tactical TP-Pro Knurled Thread Protector - 14mm CCW - Black 1
    5KU Threaded Barrel Protector (TP-Pro Knurled) - 14mm CCW (Black) 5KU-GB-451-BK
    5KU
    Special Price $6.29 Regular Price $6.99
    Save 10%
  12. 5KU Threaded Barrel Protector (TP-Pro Knurled) - 14mm CCW (Silver) 1
    5KU Threaded Barrel Protector (TP-Pro Knurled) - 14mm CCW (Silver) 5KU-GB-451-S
    5KU
    Special Price $4.24 Regular Price $4.99
    Save 15%
  13. 5KU Tokyo Marui Hi Capa GBB Airsoft Magwell (Tactical) - Red 1
    5KU Tokyo Marui Hi Capa GBB Airsoft Magwell (Tactical) - Red 5KU-GB-441-RD
    5KU
    Special Price $19.79 Regular Price $21.99
    Save 10%
  14. 5KU Tokyo Marui Hi Capa Magwell (Tactical) - Silver 1
    5KU Tokyo Marui Hi Capa Magwell (Tactical) - Silver 5KU-GB-441-SV
    5KU
    Special Price $19.79 Regular Price $21.99
    Save 10%
  15. 5KU Tokyo Marui Hi Capa Optic Mount (Aluminum) - Black 1
    5KU Tokyo Marui Hi Capa Optic Mount (Aluminum) - Black Out of Stock 5KU-GB-458-BK
    5KU
    Special Price $19.79 Regular Price $21.99
    Save 10%
  16. 5KU Toyo Marui Hi Capa Optic Mount (Aluminum) - Red 1
    5KU Tokyo Marui Hi Capa Optic Mount (Aluminum) - Red Out of Stock 5KU-GB-458-R
    5KU
    Special Price $18.69 Regular Price $21.99
    Save 15%
  17. 5KU Toyo Marui Hi Capa Optic Mount (Aluminum) - Gold 1
    5KU Tokyo Marui Hi Capa Optic Mount (Aluminum) - Gold 5KU-GB-458-G
    5KU
    Special Price $19.79 Regular Price $21.99
    Save 10%
  18. 5KU DTK-2 Muzzle Brake for Airsoft AK AEG / GBB 0
    5KU DTK-2 Muzzle Brake for Airsoft AK AEG / GBB 5KU-268
    5KU
    Special Price $10.79 Regular Price $11.99
    Save 10%
  19. 5KU AK Upper Handguard (Zenitco B-31C) for AK74 / AK105 AEG / GBB - Black 0
    5KU AK Upper Handguard (Zenitco B-31C) for AK74 / AK105 AEG / GBB - Black 5KU-269-BK
    5KU
    Special Price $44.99 Regular Price $49.99
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  20. 5KU VS-24 Aluminum AK Long Tubular Handguard for LCT / GHK AK AEG / GBB Airsoft Series 0
    5KU VS-24 Aluminum AK Long Tubular Handguard for LCT / GHK AK AEG / GBB Airsoft Series 5KU-284-BK
    5KU
    Special Price $44.99 Regular Price $49.99
    Save 10%
  21. 5KU VS-25 Aluminum AK-105 Tubular Handguard for LCT / GHK AK AEG / GBBR Airsoft Series 0
    5KU VS-25 Aluminum AK-105 Tubular Handguard for LCT / GHK AK AEG / GBBR Airsoft Series 5KU-285-BK
    5KU
    Special Price $39.19 Regular Price $48.99
    Save 20%
  22. 5KU AK Upper Rail (Zenitco B-12) AK Upper Rail for LCT / GHK AK AEG / GBB Series 0
    5KU AK Upper Rail (Zenitco B-12) AK Upper Rail for LCT / GHK AK AEG / GBB Series 5KU-271-BK
    5KU
    Special Price $12.74 Regular Price $14.99
    Save 15%
  23. 5KU AK Lower Handguard (Zenitco B-10U) for LCT / GHK Airsoft AK Series(except AKS74U) - Black 0
    5KU AK Lower Handguard (Zenitco B-10U) for LCT / GHK Airsoft AK Series(except AKS74U) - Black 5KU-273-BK
    5KU
    Special Price $33.29 Regular Price $36.99
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  24. 5KU AK Lower Handguard (Zenitco B-30U) for LCT / GHK AK AEG / GBBR Airsoft - Black 0
    5KU AK Lower Handguard (Zenitco B-30U) for LCT / GHK AK AEG / GBBR Airsoft - Black 5KU-279-BK
    5KU
    Special Price $51.29 Regular Price $56.99
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  25. 5KU AK Upper Handguard (Zenitco B-31N Classic Low Profile) for LCT / GHK AK AEG / GBBR - Desert TAN 0
    5KU AK Upper Handguard (Zenitco B-31N Classic Low Profile) for LCT / GHK AK AEG / GBBR - Desert TAN 5KU-278-T
    5KU
    Special Price $27.19 Regular Price $33.99
    Save 20%
  26. 5KU 1911 Punisher Compensator for Tokyo Marui 1911 GBB Airsoft Style 1 - Black 0
    5KU 1911 Punisher Compensator for Tokyo Marui 1911 GBB Airsoft Style 1 - Black 5KU-GB-439-BK
    5KU
    Special Price $12.59 Regular Price $13.99
    Save 10%
  27. 5KU Threaded Barrel Protector (Hexagon) - 14mm CCW (Gold) 0
    5KU Threaded Barrel Protector (Hexagon) - 14mm CCW (Gold) 5KU-GB-483-G
    5KU
    Special Price $5.94 Regular Price $6.99
    Save 15%
  28. 5KU Threaded Barrel Protector (Hexagon) - 14mm CCW (Silver) 0
    5KU Threaded Barrel Protector (Hexagon) - 14mm CCW (Silver) 5KU-GB-483-S
    5KU
    Special Price $5.59 Regular Price $6.99
    Save 20%
  29. 5KU TTI Magwell for Tokyo Marui Hi-Capa GBB Series 0
    5KU TTI Magwell for Tokyo Marui Hi-Capa GBB Series 5KU-GB-484-BK
    5KU
    Special Price $12.59 Regular Price $13.99
    Save 10%
  30. 5KU KAC Ambi Magazine Catch (CNC Steel) for Tokyo Marui M4 MWS GBBR Airsoft Series 0
    5KU KAC Ambi Magazine Catch (CNC Steel) for Tokyo Marui M4 MWS GBBR Airsoft Series 5KU-MWS-17
    5KU
    Special Price $14.39 Regular Price $15.99
    Save 10%
  31. 5KU Tokyo Marui Hi Capa Hammer & Strut (Limcat, Steel) 0
    5KU Tokyo Marui Hi Capa Hammer & Strut (Limcat, Steel) 5KU-GB-491-BK
    5KU
    Special Price $12.59 Regular Price $13.99
    Save 10%
  32. 5KU STI Hammer & Strut for Tokyo Marui / WE / Army Hi-Capa GBB Airsoft Series (CNC Steel) - Black 0
    5KU STI Hammer & Strut for Tokyo Marui / WE / Army Hi-Capa GBB Airsoft Series (CNC Steel) - Black 5KU-GB-482-BK
    5KU
    Special Price $12.59 Regular Price $13.99
    Save 10%
  33. 5KU Zenitco PK-2 AK Front Grip (Aluminum) 0
    5KU Zenitco PK-2 AK Front Grip (Aluminum) 5KU-219
    5KU
    Special Price $17.99 Regular Price $19.99
    Save 10%
  34. 5KU Zenitco PK-5 AK Front Grip (Aluminum) 0
    5KU Zenitco PK-5 AK Front Grip (Aluminum) 5KU-221
    5KU
    Special Price $17.99 Regular Price $19.99
    Save 10%
  35. 5KU Zenitco PK-0 AK Front Grip (Aluminum) 0
    5KU Zenitco PK-0 AK Front Grip (Aluminum) 5KU-212
    5KU
    Special Price $17.99 Regular Price $19.99
    Save 10%
  36. 5KU Folding Stock Adapter (Aluminum) for GHK / LCT / CYMA AK AEG / GBBR Airsoft Series 0
    5KU Folding Stock Adapter (Aluminum) for GHK / LCT / CYMA AK AEG / GBBR Airsoft Series 5KU-214
    5KU
    Special Price $29.69 Regular Price $32.99
    Save 10%
  37. 5KU Folding Stock Adapter (Aluminum) for E&L AK Series 0
    5KU Folding Stock Adapter (Aluminum) for E&L AK Series 5KU-214-2
    5KU
    Special Price $29.69 Regular Price $32.99
    Save 10%
  38. 5KU Zenitco PK-4 AK Front Grip (Aluminum) 0
    5KU Zenitco PK-4 AK Front Grip (Aluminum) 5KU-220
    5KU
    Special Price $17.99 Regular Price $19.99
    Save 10%
  39. 5KU AK Rear Sight Picatinny Rail Mount 0
    5KU AK Rear Sight Picatinny Rail Mount 5KU-146
    5KU
    Special Price $10.79 Regular Price $11.99
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  40. 5KU LAF Muzzle Brake (14mm CCW, Aluminum) 0
    5KU LAF Muzzle Brake (14mm CCW, Aluminum) 5KU-260
    5KU
    Special Price $15.29 Regular Price $16.99
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  41. 5KU Picatinny Rail (Zenitco B-2M) 0
    5KU Picatinny Rail (Zenitco B-2M) 5KU-291-BK
    5KU
    Special Price $4.49 Regular Price $4.99
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  42. 5KU Picatinny Rail (Zenitco B-2L) 0
    5KU Picatinny Rail (Zenitco B-2L) 5KU-292-BK
    5KU
    Special Price $6.29 Regular Price $6.99
    Save 10%
  43. 5KU Picatinny Rail (Zenitco B-2) 0
    5KU Picatinny Rail (Zenitco B-2) 5KU-293-BK
    5KU
    Special Price $6.29 Regular Price $6.99
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  44. 5KU Picatinny Rail (Zenitco B-2U) 0
    5KU Picatinny Rail (Zenitco B-2U) 5KU-294-BK
    5KU
    Special Price $7.19 Regular Price $7.99
    Save 10%
  45. 5KU AK Upper Handguard (Zenitco B19, Aluminum) 0
    5KU AK Upper Handguard (Zenitco B19, Aluminum) 5KU-227
    5KU
    Special Price $22.49 Regular Price $24.99
    Save 10%
  46. 5KU AK Lower Handguard (Zenitco B30) for GHK / LCT AK Series 0
    5KU AK Lower Handguard (Zenitco B30) for GHK / LCT AK Series 5KU-228
    5KU
    Special Price $62.99 Regular Price $69.99
    Save 10%
  47. 5KU Zenitco Sport 4 Kit for GHK / LCT AK74 0
    5KU Zenitco Sport 4 Kit for GHK / LCT AK74 5KU-305-BK
    5KU
    Special Price $85.49 Regular Price $94.99
    Save 10%
  48. 5KU AK Upper Handguard (Zenitco B-31, Aluminum) 0
    5KU AK Upper Handguard (Zenitco B-31, Aluminum) 5KU-229
    5KU
    Special Price $35.99 Regular Price $39.99
    Save 10%
  49. 5KU AK Railed Gas Tube (Aluminum) for GHK / LCT AK Airsoft Series 0
    5KU AK Railed Gas Tube (Aluminum) for GHK / LCT AK Airsoft Series 5KU-261
    5KU
    Special Price $15.29 Regular Price $17.99
    Save 15%
  50. 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) 5KU-MWS-2
    5KU
    Special Price $15.29 Regular Price $16.99
    Save 10%
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