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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 Threaded Barrel Protector (Diagonals Knurled) - 14mm CCW (Black) 1
    5KU Threaded Barrel Protector (Diagonals Knurled) - 14mm CCW (Black) 5KU-GB-456-BK
    5KU
    $6.99
  2. 5KU Threaded Barrel Protector (Diagonals Knurled) - 14mm CCW (Gold) 1
    5KU Threaded Barrel Protector (Diagonals Knurled) - 14mm CCW (Gold) 5KU-GB-456-G
    5KU
    $6.99
  3. 5KU Threaded Barrel Protector (Diagonals Knurled) - 14mm CCW (Silver) 1
    5KU Threaded Barrel Protector (Diagonals Knurled) - 14mm CCW (Silver) 5KU-GB-456-S
    5KU
    $6.99
  4. 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
    $4.99
  5. 5KU Threaded Barrel Protector (TP-Pro Knurled) - 14mm CCW (Silver) 1
    5KU Threaded Barrel Protector (TP-Pro Knurled) - 14mm CCW (Silver) Out of Stock 5KU-GB-451-S
    5KU
    $4.99
  6. 5KU DTK-2 Muzzle Brake for Airsoft AK AEG / GBB 0
    5KU DTK-2 Muzzle Brake for Airsoft AK AEG / GBB 5KU-268
    5KU
    $11.99
  7. 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 Out of Stock 5KU-269-BK
    5KU
    $49.99
  8. 5KU 11mm CW to 14mm CCW Adapter (Stainless Steel) - Silver 0
    5KU 11mm CW to 14mm CCW Adapter (Stainless Steel) - Silver 5KU-GB-477-S
    5KU
    Special Price $6.29 Regular Price $6.99
    Save 10%
  9. 5KU Threaded Barrel Protector (Hexagon) - 14mm CCW (Black) 0
    5KU Threaded Barrel Protector (Hexagon) - 14mm CCW (Black) 5KU-GB-483-BK
    5KU
    Special Price $6.15 Regular Price $6.99
    Save 12%
  10. 5KU Threaded Barrel Protector (Hexagon) - 14mm CCW (Gold) 0
    5KU Threaded Barrel Protector (Hexagon) - 14mm CCW (Gold) 5KU-GB-483-G
    5KU
    Special Price $6.15 Regular Price $6.99
    Save 12%
  11. 5KU Threaded Barrel Protector (Hexagon) - 14mm CCW (Silver) 0
    5KU Threaded Barrel Protector (Hexagon) - 14mm CCW (Silver) Out of Stock 5KU-GB-483-S
    5KU
    $6.99
  12. 5KU PBS-4 Suppressor (24mmx1.5mm CW & 14mmx1.0mm CCW) for LCT/GHK AK Airsoft AEG/GBB Series 0
    5KU PBS-4 Suppressor (24mmx1.5mm CW & 14mmx1.0mm CCW) for LCT/GHK AK Airsoft AEG/GBB Series Out of Stock 5KU-149
    5KU
    $31.99
  13. 5KU Zenitco PK-1 AK Front Grip (Aluminum) 0
    5KU Zenitco PK-1 AK Front Grip (Aluminum) 5KU-218
    5KU
    Special Price $17.99 Regular Price $19.99
    Save 10%
  14. 5KU Zenitco PK-2 AK Front Grip (Aluminum) 0
    5KU Zenitco PK-2 AK Front Grip (Aluminum) Out of Stock 5KU-219
    5KU
    $19.99
  15. 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%
  16. 5KU Zenitco PK-6 AK Front Grip (Aluminum) 0
    5KU Zenitco PK-6 AK Front Grip (Aluminum) 5KU-211
    5KU
    Special Price $17.99 Regular Price $19.99
    Save 10%
  17. 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%
  18. 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%
  19. 5KU Picatinny Rail (Zenitco B-2M) 0
    5KU Picatinny Rail (Zenitco B-2M) Out of Stock 5KU-291-BK
    5KU
    Special Price $4.49 Regular Price $4.99
    Save 10%
  20. 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%
  21. 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
    Save 10%
  22. 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%
  23. 5KU AK Upper Handguard (Zenitco B19, Aluminum) 0
    5KU AK Upper Handguard (Zenitco B19, Aluminum) 5KU-227
    5KU
    $24.99
  24. 5KU PBS-1 Mini Suppressor (14mm CCW) for LCT/GHK AK AEG/GBB Series 0
    5KU PBS-1 Mini Suppressor (14mm CCW) for LCT/GHK AK AEG/GBB Series 5KU-148
    5KU
    $21.99
  25. 5KU PBS-1 Suppressor (14mm CCW) for LCT/GHK AK AEG/GBB Airsoft Series 0
    5KU PBS-1 Suppressor (14mm CCW) for LCT/GHK AK AEG/GBB Airsoft Series 5KU-147
    5KU
    $27.99
  26. 5KU Z Series A-1L Sling Mount - Black 0
    5KU Z Series A-1L Sling Mount - Black 5KU-348-BK
    5KU
    Special Price $9.89 Regular Price $10.99
    Save 10%
  27. 5KU Z Series A-1L Sling Mount - Tan 0
    5KU Z Series A-1L Sling Mount - Tan Out of Stock 5KU-348-T
    5KU
    $10.99
  28. 5KU Picatinny Buffer Tube Adapter 0
    5KU Picatinny Buffer Tube Adapter 5KU-320
    5KU
    Special Price $30.59 Regular Price $33.99
    Save 10%
  29. 5KU Serrated Scale Hand Stop for M-Lok / Keymod Handguard - Black 0
    5KU Serrated Scale Hand Stop for M-Lok / Keymod Handguard - Black 5KU-189-2
    5KU
    $16.99
  30. 5KU MPI KP-9 Flash Hider (14mm CCW) 0
    5KU MPI KP-9 Flash Hider (14mm CCW) Out of Stock 5KU-334
    5KU
    $24.99
  31. 5KU B-33 Articulating AK Dust Cover for 5KU B-30 / B-10 Handguard - Black 0
    5KU B-33 Articulating AK Dust Cover for 5KU B-30 / B-10 Handguard - Black 5KU-230-BK
    5KU
    Special Price $71.99 Regular Price $79.99
    Save 10%
  32. 5KU SFG MLOK Skeleton Forward Grip - Black 0
    5KU SFG MLOK Skeleton Forward Grip - Black 5KU-358-BK
    5KU
    Special Price $10.79 Regular Price $11.99
    Save 10%
  33. 5KU SFG MLOK Skeleton Forward Grip - DDC 0
    5KU SFG MLOK Skeleton Forward Grip - DDC 5KU-358-DDC
    5KU
    $11.99
  34. 5KU SFG MLOK Skeleton Forward Grip - OD 0
    5KU SFG MLOK Skeleton Forward Grip - OD 5KU-358-OD
    5KU
    Special Price $10.55 Regular Price $11.99
    Save 12%
  35. 5KU Vertical Knurling Threaded Protector - 14mm CCW - Black 0
    5KU Vertical Knurling Threaded Protector - 14mm CCW - Black 5KU-GB-577-BK
    5KU
    Special Price $5.39 Regular Price $5.99
    Save 10%
  36. 5KU Vertical Knurling Threaded Protector - 14mm CCW - Gold 0
    5KU Vertical Knurling Threaded Protector - 14mm CCW - Gold Out of Stock 5KU-GB-577-GD
    5KU
    $5.99
  37. 5KU Vertical Knurling Threaded Protector - 14mm CCW - Silver 0
    5KU Vertical Knurling Threaded Protector - 14mm CCW - Silver Out of Stock 5KU-GB-577-SV
    5KU
    $5.99
  38. 5KU Rhombus Threaded Protector - 14mm CCW - Black 0
    5KU Rhombus Threaded Protector - 14mm CCW - Black Out of Stock 5KU-GB-578-BK
    5KU
    $5.99
  39. 5KU Rhombus Threaded Protector - 14mm CCW - Gold 0
    5KU Rhombus Threaded Protector - 14mm CCW - Gold Out of Stock 5KU-GB-578-GD
    5KU
    $5.99
  40. 5KU Rhombus Threaded Protector - 14mm CCW - Silver 0
    5KU Rhombus Threaded Protector - 14mm CCW - Silver Out of Stock 5KU-GB-578-SV
    5KU
    $5.99
  41. Image
    5KU Tokyo Marui Hi Capa GBB Airsoft Ambi Thumb Safety - Type 1 (Aluminum, Green) Out of Stock 5KU-GB-580-GN
    5KU
    $12.99
  42. Image
    5KU Tokyo Marui Hi Capa GBB Airsoft Grip Safety - Type 1 (Aluminium, Black) 5KU-GB-579-BK
    5KU
    Special Price $12.59 Regular Price $13.99
    Save 10%
  43. Image
    5KU Tokyo Marui Hi Capa GBB Airsoft Ambi Thumb Safety - Type 1 (Aluminum, Black) 5KU-GB-580-BK
    5KU
    $12.99
  44. Image
    5KU Tokyo Marui Hi Capa GBB Airsoft Grip Safety - Type 1 (Aluminium, Silver) 5KU-GB-579-SV
    5KU
    $13.99
  45. Image
    5KU Tokyo Marui Hi Capa GBB Airsoft Grip Safety - Type 1 (Aluminium, Red) 5KU-GB-579-RD
    5KU
    Special Price $12.59 Regular Price $13.99
    Save 10%
  46. Image
    5KU Tokyo Marui Hi Capa GBB Airsoft Grip Safety - Type 1 (Aluminium, Blue) 5KU-GB-579-BU
    5KU
    Special Price $12.87 Regular Price $13.99
    Save 8%
  47. Image
    5KU Tokyo Marui Hi Capa GBB Airsoft Grip Safety - Type 1 (Aluminium, Purple) 5KU-GB-579-PU
    5KU
    $13.99
  48. Image
    5KU Tokyo Marui Hi Capa GBB Airsoft Grip Safety - Type 1 (Aluminium, Gold) 5KU-GB-579-GD
    5KU
    $13.99
  49. Image
    5KU Tokyo Marui Hi Capa GBB Airsoft Ambi Thumb Safety - Type 1 (Aluminum, Red) Out of Stock 5KU-GB-580-RD
    5KU
    $12.99
  50. Image
    5KU Tokyo Marui Hi Capa GBB Airsoft Ambi Thumb Safety - Type 1 (Aluminum, Blue) 5KU-GB-580-BU
    5KU
    $12.99
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  1. Category AIRSOFT ACCESSORIES Remove This Item
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  1. AIRSOFT THREADED BARREL ADAPTER22items
  2. AIRSOFT RECEIVER PARTS1 item
  3. HANDGUARD & RAIL17items
  4. AIRSOFT SAFETY SELECTOR14items
  5. AIRSOFT SCOPES AND SIGHTS3items
  6. SLING MOUNT5items
  7. AIRSOFT STOCK8items
  8. SUPPRESSORS & SILENCERS16items
  9. FOREGRIP11items
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  1. AK SERIES19items
  2. AR/M4 SERIES5items
  3. FITS MANY MODELS50items
  4. FOR ALL PLATFORMS1 item
  5. HI-CAPA14items
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  1. FITS ALL TYPES57items
  2. PISTOL16items
  3. RIFLE19items
Originating Armory
  1. CGS Group1 item
  2. ZENITCO7items
  3. GEISSELE2items
  4. KALASHNIKOV19items
  5. SIG1 item
  6. STI14items
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  1. Metal91items
  2. Plastic1 item
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