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!
CNC aluminum blowback unit compatible with Action Army AAP01 Assassin.*This product is intended for advanced users and requires skills in disassembling and assembling airsoft guns.[Cautions]This product is an airsoft gun...
This is a SureFire SOCOM556-MINI2 type suppressor, which has been officially adopted by U.S. SOCOM for M4/Mk18. The distinctive wavy front plate and markings of the SOCOM2 series are realistically...
CNC aluminum blowback unit compatible with Action Army AAP01 Assassin.*This product is intended for advanced users and requires airsoft gun disassembly and assembly skills.[Precautions]This product is an overseas airsoft gun...
CNC aluminum blowback unit compatible with Action Army AAP01 Assassin.*This product is intended for advanced users and requires skills in disassembling and assembling airsoft guns.[Notice]This product is an overseas airsoft...
A cheek riser set compatible with separately sold Jmac type SS-8/AB-8/1913 stocks.You can choose from 3 different heights according to your preference.This product is for advanced users and requires skills...
Midwest Industries type railed gas tube compatible with GHK full-size AKs. Equipped with a Picatinny rail on top, it allows mounting of small red dot sights such as Aimpoint T-1....
This SANDMAN-K type silencer and hider set (14mm counter-clockwise thread), seen in use by US special forces for its excellent performance and durability. Its appeal lies in its versatility, supporting...
[Faithful Reproduction of the Real Thing]A replica Blue Can type suppressor used as a dummy silencer with Simunition, which are training rounds. By attaching a dummy suppressor to a rifle,...
This is a SureFire SOCOM556-MG type suppressor perfect for light machine guns chambered in 5.56mm. In addition to using the flash hider alone, you can also change the look by...
[Faithful Reproduction of the Real Thing]A replica of the Blue Can type suppressor, which is used as a dummy silencer with Simunition training ammunition. By attaching a dummy suppressor to...
This Strike Industries type Strike Switch is compatible with standard M4 electric guns. It is a selector that allows for ergonomic, intuitive, and quick operation. The unique toggle action allows...
This is a 7-slot KeyMod rail from the overseas airsoft parts manufacturer 5KU.[Basic Specifications]Material: AluminumColor: BlackWeight: 41gKeyMod compatible[Precautions]This product is an airsoft part made overseas. Please understand the following points...
An upper handguard that can be used with the separately sold Zenit B-30/B-30U type lower handguard. It features four-slot Picatinny rails at the front and rear, allowing for the mounting...
These are custom parts released by the overseas airsoft parts manufacturer 5KU. Made of metal, this foregrip is exclusively for KEYMOD rails. It has a hollowed-out structure for lightweighting and...
This is a Geissele SMR type 10.5-inch handguard compatible with real size HK416 GBB (VFC, etc.). It is an ultra-lightweight free-float handguard.The seamless 20mm top rail is long enough to...
This is a rear sight rail for the AK series, released by overseas airsoft parts manufacturer 5KU. By simply replacing the original rear sight, you can add 20mm compatible parts...
A lower handguard that can be used with the separately sold Zenit B-31/B-31N type upper handguard. It is equipped with a Picatinny rail on the bottom, suitable for attaching foregrips...
This KAC-type QD silencer is released by the overseas airsoft parts manufacturer 5KU. It is made entirely of metal and comes with an M4 flash hider with a 14mm counter-clockwise...
Polite Shooter type KeyMod handguard compatible with LCT/GHK AK-105. It has a cylindrical, slim shape that is easy to grip. In addition, KeyMod slots are provided on all sides, providing...
Aluminum nozzle block compatible with Action Army AAP01.*This product is for advanced users and requires airgun disassembly and assembly skills.[Notes]This product is an overseas-made airgun part. Please understand the following...
The DL-1 type additional attachment rail can be used with separately sold Zenit type forends (B-10L/Sport-1 B-31L). By extending the lower handguard, it is possible to add more attachment holes...
Action Army AAP01 compatible carbine kit Type B.It can be customized into a highly versatile carbine with features like a top rail and Picatinny stock base.Another attractive feature is the...
Strike Industries type trigger compatible with standard M4 electric guns. The trigger face is a straight type for intuitive feel, and features a characteristic lightning-shaped lightening cut.This product is for...
Tokyo Marui Hi-Capa/M1911 compatible slide stop Type 3.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...
![[5KU] CNC Aluminum Blowback Unit (Compatible with Action Army AAP01) RED](http://rock-et.jp/cdn/shop/files/abaap-001-rd_respimgsize.jpg?v=1777362465)
![[5KU] SF SOCOM556 MINI2/4-Prong Flash Hider Set [14mm CCW] BK](http://rock-et.jp/cdn/shop/files/5ku-243-bk_respimgsize.jpg?v=1777362509)
![[5KU] CNC Aluminum Blowback Unit (Compatible with Action Army AAP01) BLUE](http://rock-et.jp/cdn/shop/files/abaap-001-bu_respimgsize.jpg?v=1777362327)
![[5KU] CNC Aluminum Blowback Unit (Compatible with Action Army AAP01) BK](http://rock-et.jp/cdn/shop/files/abaap-001-bk_respimgsize.jpg?v=1777362204)
![[5KU] Cheek Riser Set for Jmac Type Stocks (SS-8/AB-8/1913)](http://rock-et.jp/cdn/shop/files/5ku-351_respimgsize.jpg?v=1777362019)
![[5KU] MI-Style Rail Gas Tube [Compatible with GHK AK GBB]](http://rock-et.jp/cdn/shop/files/5ku-261_respimgsize.jpg?v=1777362100)
![[5KU] DA SM-K Type Silencer & Flash Hider Set (14mm CCW) BK](http://rock-et.jp/cdn/shop/files/5ku-315-bk_1_respimgsize.jpg?v=1777361882)
![[5KU] SF SOCOM556 MG/3-Prong Flash Hider Set [14mm CCW] BK](http://rock-et.jp/cdn/shop/files/5ku-266-bk_respimgsize.jpg?v=1777361650)
![[5KU] Blue Can Type Dummy Training Silencer (Tracer Unit Compatible/14mm CCW) M-Size 12cm](http://rock-et.jp/cdn/shop/files/5ku-345-bu_respimgsize.jpg?v=1777361308)
![[5KU] KeyMod 7-Slot Rail](http://rock-et.jp/cdn/shop/files/5ku-170_respimgsize.jpg?v=1777360785)
![[5KU] Zenit B-31N Type Upper Handguard BK](http://rock-et.jp/cdn/shop/files/5ku-278-bk_respimgsize.jpg?v=1777360891)
![[5KU] KeyMod ULTRALIGHT VERTICAL GRIP Type 2](http://rock-et.jp/cdn/shop/files/5ku-193-45_respimgsize.jpg?v=1777360620)
![[5KU] Geissele SMR HK416 Type Rail Handguard 10.5inch (VFC HK416 GBB) BK](http://rock-et.jp/cdn/shop/files/8_000000017218_respimgsize.jpg?v=1777360472)
![[5KU] AK Rear Sight Rail](http://rock-et.jp/cdn/shop/files/5ku-146_respimgsize.jpg?v=1777360278)
![[5KU] Zenit B-30U Type Lower Handguard BK](http://rock-et.jp/cdn/shop/files/5ku-279-bk_respimgsize.jpg?v=1777360310)
![[5KU] Polite Shooter VS-25 KeyMod Handguard (AK105) BK](http://rock-et.jp/cdn/shop/files/5ku-285-bk_respimgsize.jpg?v=1777359696)
![[5KU] Aluminum Nozzle Block (Action Army AAP01 Compatible)](http://rock-et.jp/cdn/shop/files/abaap-017_respimgsize.jpg?v=1777359532)
![[5KU] Zenit DL-1 Style Additional Attachment Rail](http://rock-et.jp/cdn/shop/files/5ku-281-bk_respimgsize.jpg?v=1777359554)
![[5KU] Carbine Kit Type B (Compatible with Action Army AAP01) BK](http://rock-et.jp/cdn/shop/files/abaap-019-bk_respimgsize.jpg?v=1777359266)
![[5KU] SI Type Straight Trigger [STD M4 AEG] FDE](http://rock-et.jp/cdn/shop/files/5ku-286-fde_respimgsize.jpg?v=1777359293)
![[5KU] Stainless Steel Slide Stop Type 3 (Tokyo Marui Hi-CAPA/1911) BK](http://rock-et.jp/cdn/shop/files/gb-501-bk_respimgsize.jpg?v=1777359137)
