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!
Action Army AAP01 compatible aluminum outer barrel Type D.Removing the muzzle protector reveals a 14mm counter-clockwise threaded muzzle.*This product is for advanced users and requires airsoft gun disassembly and assembly...
Thumb rest compatible with Action Army AAP01. Features non-slip grooving.*This product is for advanced users and requires airsoft gun disassembly and assembly skills.[Cautions]This product is an overseas airsoft gun part....
This trigger shoe is compatible with Tokyo Marui Hi-CAPA. When used with a separately sold modular trigger base, you can customize it with your preferred color and trigger stroke.Specifications:・Connection: Type1...
This is a trigger shoe compatible with Tokyo Marui Hi-CAPA. By using it in conjunction with a separately sold modular trigger base, you can customize it with your preferred color...
Colorful fluted tactical outer barrel for Tokyo Marui Hi-CAPA 5.1.The muzzle's screw standard is 11mm positive thread.*This product is for advanced users and requires airsoft gun disassembly and assembly skills.[Precautions]This...
Colorful Hex Tactical Outer Barrel for Tokyo Marui Hi-CAPA 5.1.The muzzle thread standard is 11mm positive thread.*This product is for advanced users and requires airsoft gun disassembly and assembly skills.[Precautions]This...
Colorful fluted tactical outer barrel compatible with Tokyo Marui Hi-CAPA 4.3.The muzzle thread standard is 11mm positive thread.*This product is for advanced users and requires airsoft gun disassembly and assembly...
Colorful Hex Tactical Outer Barrel for Tokyo Marui Hi-CAPA 4.3.The muzzle thread standard is 11mm positive thread.*This product is for advanced users and requires airsoft gun disassembly and assembly skills.[Precautions]This...
This trigger shoe is compatible with Tokyo Marui Hi-CAPA. When used with a separately sold modular trigger base, you can customize it with your preferred color and trigger stroke.Specifications:・Connection: Type1...
This trigger shoe is compatible with Tokyo Marui Hi-CAPA. When used with a separately sold modular trigger base, you can customize it with your preferred color and trigger stroke.Specifications:・Connection: Type1...
This is a realistic reproduction of the PIT VIPER from TTI (Taran Tactical Innovations) in the USA, which gained attention after being used by the protagonist John in the blockbuster...
This is a set of CNC aluminum custom slides and frames compatible with the Tokyo Marui Hi-Capa 5.1.A custom slide featuring a sharp appearance with a black slide and gold...
This quick release magazine catch is compatible with the GHK GBB AK series.It extends the magazine catch by fitting over the genuine magazine catch.This allows for magazine release without removing...
This custom fire selector is compatible with the GHK GBB AK series.The enlarged finger rest makes operating the selector easier compared to the genuine part. Furthermore, an extended bar is...
Action Army AAP01 Compatible Selector Switch Charging Handle Type 2.*This product is for advanced users and requires airsoft gun disassembly and assembly skills.[Precautions]This product is an overseas airsoft gun part....
Action Army AAP01 compatible selector switch charging handle Type 3.*This product is for advanced users and requires skills in disassembling and assembling airsoft guns.[Notes]This product is an overseas-manufactured airsoft gun...
By replacing the rear sight of your Tokyo Marui Glock 17 Gen.3, you can mount a cocking handle.【Precautions】■As this product is an overseas molded product, there may be some imperfections...
UMAREX/VFC G19 compatible LANTAC 9INE style outer barrel.【Precautions】■As this product is an overseas molded product, there may be imperfections in the molding or burrs.■As this product is imported, the packaging...
Colorful tactical outer barrel compatible with Tokyo Marui Hi-CAPA 4.3.The muzzle thread standard is 11mm positive thread.*This product is for advanced users and requires airsoft gun disassembly and assembly skills.[Notes]This...
Tokyo Marui Hi-CAPA 4.3 compatible colorful Tornado tactical outer barrel.The muzzle thread standard is 11mm positive thread.*This product is for advanced users and requires airsoft gun disassembly and assembly skills.【Precautions】This...
Tokyo Marui Hi-CAPA compatible steel slide stop & thumb rest.*This product is for advanced users and requires airsoft gun disassembly and assembly skills.[Notes]This product is an overseas airsoft gun part....
Tokyo Marui M1911 Compensator Type 8.*This product is for advanced users and requires airsoft gun disassembly and assembly skills.[Precautions]This product is an overseas airsoft gun part. Please understand the following...
Tokyo Marui M1911 Compensator Type 9.*This product is intended for advanced users and requires skills in disassembling and assembling airsoft guns.[Precautions]This product is an overseas airsoft gun part. Please understand...
Tokyo Marui Hi-CAPA compatible module trigger base Type 1.By using it with a separately sold trigger shoe, you can customize it with your favorite color and trigger stroke.*This product is...
![[5KU] Aluminum Outer Barrel Type D (14mm CCW/Compatible with Action Army AAP01)](http://rock-et.jp/cdn/shop/files/abaap-010_respimgsize.jpg?v=1774847995)
![[5KU] Thumb Rest (Compatible with Action Army AAP01)](http://rock-et.jp/cdn/shop/files/abaap-011_respimgsize.jpg?v=1774847458)
![[5KU] Modular Trigger Shoe Type 1/E Silver (Compatible with Tokyo Marui Hi-Capa)](http://rock-et.jp/cdn/shop/files/gb-543_respimgsize.jpg?v=1773714474)
![[5KU] Colorful Fluted Tactical Outer Barrel (11mm CW Thread / Tokyo Marui Hi-CAPA 5.1 Compatible)](http://rock-et.jp/cdn/shop/files/gb-547_respimgsize.jpg?v=1773713136)
![[5KU] Colorful Fluted Tactical Outer Barrel (11mm CW Thread / Tokyo Marui Hi-CAPA 4.3 Compatible)](http://rock-et.jp/cdn/shop/files/gb-549_respimgsize.jpg?v=1773712406)
![[5KU] Modular Trigger Shoe Type 1/E Size S Blue (Compatible with Tokyo Marui Hi-Capa)](http://rock-et.jp/cdn/shop/files/gb-542s-bu_respimgsize.jpg?v=1773710509)
![[5KU] Matrix CNC Aluminum Slide Chassis Set Black x Gold (Compatible with Tokyo Marui Hi-Capa 5.1)](http://rock-et.jp/cdn/shop/files/gb-573-bkgd_10_respimgsize.jpg?v=1774947590)
![[5KU] CNC Custom Fire Selector (for GHK GBB AK Series)](http://rock-et.jp/cdn/shop/files/gb-164_3_respimgsize.jpg?v=1773708386)
![[5KU] Cocking Handle (Compatible with Tokyo Marui G17 Gen.3)](http://rock-et.jp/cdn/shop/files/gb-417_f45f60ba-b052-418c-981a-2c0959211dd8_respimgsize.jpg?v=1774239908)
![[5KU] LANTAC 9INE Style Outer Barrel (for UMAREX / VFC G19)](http://rock-et.jp/cdn/shop/files/gb-472_5100f9f6-bef2-40e4-9fcd-ef8f318b6322_respimgsize.jpg?v=1774240014)
![[5KU] Colorful Tactical Outer Barrel (11mm CW/Tokyo Marui Hi-CAPA 4.3 Compatible)](http://rock-et.jp/cdn/shop/files/gb-522_d21e01b3-0b25-4d62-b467-1346290749e8_respimgsize.jpg?v=1774240173)
![[5KU] Steel Slide Stop & Thumb Rest (Tokyo Marui Hi-CAPA compatible)](http://rock-et.jp/cdn/shop/files/gb-524_87f9e390-8aff-4198-88bf-594992fa3611_respimgsize.jpg?v=1774240765)
![[5KU] Compensator Type 8 (For Tokyo Marui M1911)](http://rock-et.jp/cdn/shop/files/gb-535_2b7af055-399d-4587-8bbc-48e24de1a33c_respimgsize.jpg?v=1774240961)
![[5KU] Compensator Type 9 (for Tokyo Marui M1911)](http://rock-et.jp/cdn/shop/files/gd-536_respimgsize.jpg?v=1774241125)
![[5KU] Module Trigger Base Type 1 (Compatible with Tokyo Marui Hi-CAPA)](http://rock-et.jp/cdn/shop/files/gb-540_2fbb7e6c-51e2-4488-a0a1-3db67016383b_respimgsize.jpg?v=1774241338)
