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!
This aluminum custom trigger is compatible with the Tokyo Marui Hi-Capa/1911A1. It features geometric cutouts such as circles and triangles, and textured finger areas for added accent. [Notes] This product...
This set includes a SureFire-type Warden blast diffuser and a 4-prong flash hider. The blast diffuser and flash hider are made of durable aluminum and steel. The hider features a...
This lightweight style magwell is compatible with Tokyo Marui's Hi-Capa series. It allows for quick mag changes and a secure grip. Its sleek and simple design makes it ideal for...
This DOM-style magwell is compatible with Tokyo Marui's Hi-Capa series. It allows for quick mag changes and a secure grip. Its angular, linear design makes it ideal for customizing your...
This magazine base is compatible with Tokyo Marui's Hi-Capa series magazines. Compared to the large, genuine magazine base, it is smaller and easier to handle. The bottom features the Infinity...
This STI-style magwell is compatible with Tokyo Marui and WE Hi-Capa series pistols. It protects the magazine in case of a drop and allows for quick and reliable mag changes....
This STI-style magwell is compatible with Tokyo Marui and WE Hi-Capa series pistols. It protects the magazine in case of a drop and allows for quick and reliable mag changes....
This is a ZEV Universal PRO style magwell compatible with Tokyo Marui/VFC's full-frame Glock 17 (18C/22/34). The Universal Pro is primarily intended for use with race-style Glocks, and is designed...
The ARC Division SPARC-M type compensator is ideal for Glock series outer barrels. This single-port design effectively reduces recoil and muzzle jump, and features a realistic front and side reduction...
This muzzle protector protects the threads of your outer barrel. The twisted flutes and dimples on the side, along with a unique texture, add a touch of elegance to your...
This LANTAC-type aluminum outer barrel is compatible with Tokyo Marui/WE G17/G18C and other guns. Its unique body features complex fluting with varying depths. The chamber is engraved with LANTAC and...
This is an outer barrel for the Tokyo Marui M4A1 MWS GBB. It is a 7-inch rifle-sized, aluminum-made, -14mm specification. This product is for advanced users and requires the ability...
This is a 12.5-inch outer barrel for the Tokyo Marui M4A1 MWS GBB. It is made of aluminum and is 14mm thick. This product is for advanced users and requires...
This is a classic Zenit style foregrip for modernized AK customization. The compact foregrip provides a firm grip, and the bottom cap features realistic white markings and can be removed...
This full-length side rail is compatible with both M-LOK and KeyMod handguards. It allows for the attachment of various accessories, enhancing expandability. [Notes] This product is an airsoft gun part...
This is a replica of the Sure Fire SOCOM556-MINI2 type suppressor, officially adopted by the US SOCOM for the M4/Mk18. It features the SOCOM2 series wavy front plate, allowing you...
Geissley SMR type handguard 10.5 inch compatible with real size HK416 GBB (VFC, etc.). Ultra-lightweight free-float handguard. The seamless 20mm top rail is long enough to mount close- and medium-range...
Zenit B-31C type upper handguard. Can be used in combination with the B-30 handguard. [Notes] This product is an airsoft gun part made overseas. Please understand the following points before...
KAC type extended sling mount compatible with standard M4 electric guns. [Notes] This product is an airsoft gun part made overseas. Please understand the following points before purchasing. ■This product...
This Picatinny rail stock base is compatible with LCT/GHK side folding AK stocks. It allows you to mount Picatinny interface stocks. [Notes] This product is an airsoft gun part made...
The JMAC RRD-4C type muzzle brake (14mm reverse thread) is ideal for AK series rifles. It features an oval recessed gas release port. [Notes] This product is an airsoft gun...
A visor stock that can be attached to models with a Picatinny interface stock base. As its name suggests, the Visor is characterized by its large downward curve, which allows...
This is a Knights-type aluminum trigger guard compatible with the Western Arms M4 GBB. [Notes] This product is an airsoft gun part made overseas. Please be aware of the following...
This lightweight 14.5-inch outer barrel is made of aluminum and fits -14mm rounds. This product is for advanced users and requires the ability to disassemble and assemble air guns. [Notes]...
![[5KU] Aluminum Custom Trigger Type 2 SV for Tokyo Marui HI-CAPA/1911A1](http://rock-et.jp/cdn/shop/files/gb-210_e8388579-3627-44c9-9da3-cf2c6791b9a8_respimgsize.jpg?v=1774846112)
![[5KU] SF Type Warden Blast Diffuser/4-Prong Flash Hider Set Ver.2 DE](http://rock-et.jp/cdn/shop/files/4589565992822_respimgsize.jpg?v=1774336272)
![[5KU] Lightweight Style Magwell Titanium for Tokyo Marui HI-CAPA Series](http://rock-et.jp/cdn/shop/files/gb-259-t_52a6a510-c82b-4a23-8cc7-3476e81011be_respimgsize.jpg?v=1774845708)
![[5KU] DOM Style Magwell Black, Compatible with Tokyo Marui HI-CAPA Series](http://rock-et.jp/cdn/shop/files/gb-286-bk_5a7766cc-90b1-4ded-a75a-785a40392e78_respimgsize.jpg?v=1774845602)
![[5KU] 2011 Infinity Magazine Base SV for Tokyo Marui HI-CAPA Series](http://rock-et.jp/cdn/shop/files/gb-287-s_c3245598-6899-4725-8069-8bac7c0a0271_respimgsize.jpg?v=1774845566)
![[5KU] STI Style Tactical Magwell for Hi-Capa, Blue](http://rock-et.jp/cdn/shop/files/gb-441-bu_b07540f3-6c59-48ff-83cb-47cc946232f0_respimgsize.jpg?v=1774845443)
![[5KU] ZEV Universal PRO Style Magwell Marking Ver. Gold (Compatible with Tokyo Marui/VFC Glock Series)](http://rock-et.jp/cdn/shop/files/gb-444-g_abe7e335-ad49-462a-8008-9da1e0324886_respimgsize.jpg?v=1774845343)
![[5KU] ARC Glock SPARC-M Style Compensator Black (14mm CCW Thread)](http://rock-et.jp/cdn/shop/files/gb-453-bk_d50395eb-c055-48c8-9025-b8f2f38ca5d7_respimgsize.jpg?v=1774845299)
![[5KU] Twist Fluted/Dimple Thread Protector, Black (14mm Left-Hand Thread)](http://rock-et.jp/cdn/shop/files/gb-457-bk_ca306e32-8c3b-4fca-8046-415fc9111304_respimgsize.jpg?v=1774845188)
![[5KU] LANTAC 9INE Style Outer Barrel for G17 SV](http://rock-et.jp/cdn/shop/files/gb-459-s_e9640102-7718-4470-a155-18785235198f_respimgsize.jpg?v=1774845148)
![[5KU] Tokyo Marui M4A1 MWS CQB Outer Barrel - 14mm, 7-inch](http://rock-et.jp/cdn/shop/files/mws-1_40f53c74-332b-4673-9351-e1bb22d9fc42_respimgsize.jpg?v=1774329752)
![[5KU] Tokyo Marui M4A1 MWS Outer Barrel -14mm, 12.5 inch](http://rock-et.jp/cdn/shop/files/mws-6_470fa240-cf1b-4389-bd65-922940d9a59a_respimgsize.jpg?v=1774329688)
![[5KU] ZENIT PK-4 Style Foregrip](http://rock-et.jp/cdn/shop/files/4589565947563_respimgsize.jpg?v=1774336126)
![[5KU] Full-Length Side Rails [M-LOK/KeyMod Compatible]](http://rock-et.jp/cdn/shop/files/4589565973234_respimgsize.jpg?v=1774336065)
![[5KU] SF SOCOM556-MINI2 Type Suppressor DE [14mm CCW Thread]](http://rock-et.jp/cdn/shop/files/4589565992792_respimgsize.jpg?v=1774335975)
![[5KU] Geissele SMR HK416 Type Rail Handguard 10.5 inch [VFC HK416 GBB] DE](http://rock-et.jp/cdn/shop/files/4589566038987_respimgsize.jpg?v=1774335877)
![[5KU] Zenit B-31C Type Upper Handguard Black](http://rock-et.jp/cdn/shop/files/4589566051733_respimgsize.jpg?v=1774335796)
![[5KU] KAC Type Extended Sling Mount [STD M4 AEG]](http://rock-et.jp/cdn/shop/files/4589566051351_respimgsize.jpg?v=1774335692)
![[5KU] Picatinny Rail Stock Base [20mm Rail / Compatible with LCT, GHK, and AK]](http://rock-et.jp/cdn/shop/files/4589566058886_bf15c6bd-d3a4-48c3-9116-092023aa9d3d_respimgsize.jpg?v=1774335516)
![[5KU] JMAC RRD-4C Type Muzzle Brake (14mm CCW Thread)](http://rock-et.jp/cdn/shop/files/4589566055489_ed144da2-27bd-49f0-8b1c-bc5693b46184_respimgsize.jpg?v=1774335334)
![[5KU] Visor Stock [Compatible with Picatinny/20mm Rails] Black](http://rock-et.jp/cdn/shop/files/4589566059340_respimgsize.jpg?v=1774335275)
![[5KU] KAC Type Trigger Guard for WA M4 GBB](http://rock-et.jp/cdn/shop/files/4589565973319_respimgsize.jpg?v=1774334959)
![[5KU] Lightweight Carbine Outer Barrel for Tokyo Marui M4A1 MWS - 14mm, 14.5 inch](http://rock-et.jp/cdn/shop/files/mws-8_e0fecb43-939e-4c65-8e84-30c901205f3f_respimgsize.jpg?v=1774329645)
