5KU is a Taiwanese airsoft brand established in 2006. They manufacture a wide range of upgrade parts and accessories for airsoft guns, including outer barrels, internal parts, and rail systems. They are well-known for their external parts for AK, M4, and Hi-Capa series airsoft guns.
If you're looking for accessories to upgrade the look of your airsoft gun, be sure to check out 5KU!
SI-type PDW stabilizer compatible with standard M4 electric guns. Its extremely compact styling allows for high maneuverability when stowed, especially during CQB or shooting from vehicles, and can be extended...
This is a compensator for Hi-Capa with an outer barrel featuring 14mm counter-clockwise threading. It is suitable for race gun customization.*This product is exclusively for the gb-237 or gb-269 outer...
Lancer Systems type magwell compatible with M4/AR-15 platforms, such as standard M4 electric guns and Tokyo Marui M4 MWS. The funnel-shaped opening allows for comfortable magazine insertion.*Not compatible with next-generation...
M4 stock adapter compatible with models that have a Picatinny interface stock base.The stock tube is compatible with real-size (GHK/WE/WA/VFC) GBB Mil-Spec types.This product is for advanced users and requires...
Tokyo Marui Hi-Capa Series Compatible Magazine Catch Type 5.This product is for advanced users and requires skills in disassembling and assembling airsoft guns.【Precautions】This product is an overseas airsoft gun part....
Action Army AAP01 Assassin compatible selector switch ambidextrous charging handle.It is an ambidextrous type that can be switched left and right depending on your dominant hand, and the selector switch...
This trigger shoe is compatible with Tokyo Marui Hi-CAPA. When used with the separately sold modular trigger base, you can customize it with your preferred color and trigger stroke.Specifications:・Connection: Type...
This magazine extension replicates the TTI (Taran Tactical Innovations) style. This magazine is compatible with Tokyo Marui Glock series magazines, version 2.0. Its lightweight yet highly rigid structure, made from...
This magazine extension replicates the TTI (Taran Tactical Innovations) style. This magazine is compatible with Tokyo Marui Glock series magazines, version 2.0. Its lightweight yet highly rigid structure, made from...
Aluminum magwell compatible with Action Army AAP01 Assassin. The wide funnel design allows for quick reloading. *This product is intended for advanced users and requires skills in disassembling and assembling...
The Leapers UTG PRO Monolithic M-LOK Handguard is realistically reproduced using aluminum CNC. The rail mount and M-Lok handguard are integrated into one unit, and feature a design that wraps...
This is a classic Zenit-style foregrip for modernized AK customization. The large foregrip provides a firm grip. The bottom cap features realistic white markings and can be removed to reveal...
This compact tracer unit recreates the muzzle flash that occurs when a BB bullet is detected by the sensor inside the unit, causing a powerful LED element to light up,...
SF Warden type silencer equipped with a muzzle flash tracer unit. [Muzzle flash function] This compact tracer unit recreates the muzzle flash that occurs when a BB bullet is detected...
This replica is an exterior part for airsoft guns that reproduces the JMAC 1913 MP5 Adapter. It is possible to attach a stock with a Picatinny (20mm rail) interface. You...
This replica is a reproduction of the JMAC MMS-style 6.1-inch M-LOK handguard and MMS gas tube. [Actual product overview] The genuine JMAC Customs MMS style handguard is designed for the...
This is a set of a custom CNC aluminum slide and chassis, thumb rest, and dot sight mount compatible with the Tokyo Marui Hi-Capa 5.1. The combination of a black...
This SI VIPER-type PDW stock is compatible with standard M4 electric guns. Its extremely compact styling allows for excellent maneuverability when stowed, especially during close quarters battles or vehicle firing....
This is a set of a dummy suppressor and a 3-prong hider based on the latest model QD suppressor developed by Knight's Armament (KAC) of the United States. It consists...
The Tyrant Designs HALO MiniVert-style vertical foregrip is compatible with both M-LOK and KeyMod systems, and its versatility and light weight make it highly usable. The innovative design and functional...
This barrel adapter allows you to convert a 12mm CCW threaded handgun outer barrel to a 14mm CCW thread. By converting it to a versatile 14mm CCW thread, you can...
Action Army AAP01 compatible ghost ring sight set.Includes red and green fiber optic inserts. Note: This product is intended for advanced users and requires airsoft gun disassembly and assembly skills....
This is an SI Cobra type trigger guard compatible with standard M4 electric guns. The "hood" of the Cobra serves as a rest to position the trigger finger safely while...
This PDW wire stock is compatible with the Tokyo Marui M4 MWS. It has a more compact design compared to standard buttstocks. The buttplate features a honeycomb non-slip pattern for...
![【5KU】SI-Type PDW Stabilizer [STD M4 AEG]](http://rock-et.jp/cdn/shop/files/si-11_respimgsize.jpg?v=1776140232)
![[5KU] Compensator Type 2 SV for Tokyo Marui HI-CAPA Series - 14mm CCW Thread](http://rock-et.jp/cdn/shop/files/gb-294-s_respimgsize.jpg?v=1776132773)
![[5KU] Magazine Catch Type 5 (Tokyo Marui Hi-CAPA Series Compatible) BK](http://rock-et.jp/cdn/shop/files/gb-518-bk_respimgsize.jpg?v=1775710527)
![[5KU] Selector Switch Ambidextrous Charging Handle (Action Army AAP01 Compatible) BK](http://rock-et.jp/cdn/shop/files/abaap-012-bk_respimgsize.jpg?v=1775537278)
![[5KU] UTG Type Monolithic M-Lok Handguard (for VFC/UMAREX MP5K)](http://rock-et.jp/cdn/shop/files/5ku-392v_4af35194-760d-4228-8cf5-886383ce69e7_respimgsize.jpg?v=1774327457)
![[5KU] ZENIT PK-2 Style Foregrip](http://rock-et.jp/cdn/shop/files/4589565960418_respimgsize.jpg?v=1774336182)
![[5KU] Muzzle Flash Tracer Unit (Compatible with 11mm clockwise and 14mm counterclockwise threads)](http://rock-et.jp/cdn/shop/files/4589566040515_respimgsize.jpg?v=1774335206)
![[5KU] SF Warden Type Silencer (14mm CCW Thread/Built-in Muzzle Flash Tracer Unit) Tan](http://rock-et.jp/cdn/shop/files/4589566065204_respimgsize.jpg?v=1774335050)
![[5KU] JMAC Type M1913 (20mm Rail) Stock Adapter for CYMA MP5](http://rock-et.jp/cdn/shop/files/5ku-405_678501c7-7f35-498e-9d30-6786da02c4cd_respimgsize.jpg?v=1774327972)
![[5KU] JMAC Type AK MMS 6.1-inch M-LOK Handguard for CYMA AK74U](http://rock-et.jp/cdn/shop/files/5ku-416-bk_0d9c38a1-dc14-4fc6-a67d-fe585068f409_respimgsize.jpg?v=1774328343)
![[5KU] EX-02 Extra CNC Aluminum Slide Chassis with Red Dot Sight Mount Set (Black xSV) (Compatible with Tokyo Marui Hi-Capa 5.1)](http://rock-et.jp/cdn/shop/files/gb-592-bksv_3_respimgsize.jpg?v=1774947467)
![[5KU] SI VIPER Type PDW Stock (Compatible with STD M4 AEG)](http://rock-et.jp/cdn/shop/files/cpo-si-02_45956a3f-67f2-4b43-b153-9c819d5acc37_respimgsize.jpg?v=1774846527)
![[5KU] KAC Type QDC/MCQ-PRT QD Suppressor & Shroud Set for FDE 14mm CCW Threads](http://rock-et.jp/cdn/shop/files/mt002fde_9fe140ea-68cf-496a-945e-f172c43cc505_respimgsize.jpg?v=1774329886)
![[5KU] Tyrant Designs HALO MiniVert Style Vertical Foregrip, Red (M-LOK/KeyMod Compatible)](http://rock-et.jp/cdn/shop/files/5ku-235-r_b62b581c-22fb-4393-aaf3-7cc0402df372_respimgsize.jpg?v=1774326473)
![[5KU] Steel 12mm CCW to 14mm CCW Adapter, Short, Black](http://rock-et.jp/cdn/shop/files/gb-497-bk_ccf01ba1-b12f-4e44-83ae-926aa411c8ce_respimgsize.jpg?v=1774844947)
![[5KU] PDW Wire Stock (Tokyo Marui M4 MWS compatible)](http://rock-et.jp/cdn/shop/files/gb-159_respimgsize.jpg?v=1778558694)
