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5KU
5KU is a brand specializing in high-quality external parts and accessories for airsoft guns. Its product range covers M4, AK, and Hi-Capa GBB pistol platforms. The lineup includes everything from outer barrels and handguards and RIS mounts to SOCOM suppressor replicas, compensators, stocks, and ZenitCo-style parts for AK rifles, as well as precision-machined Hi-Capa components such as slides, frames, and other TM-standard parts. In short, 5KU offers high-quality, affordable parts for enthusiasts who value realistic appearance and technical precision — perfect for collectors, custom builders, and reenactors focused on Russian weapon systems. 5KU delivers an excellent price-to-performance ratio without the need to invest in premium brands at double the cost.
5KU is a well-known brand specializing in the production of quality external airsoft gun parts and accessories. Founded in 2006 in Taiwan, it has since earned a strong reputation for precise manufacturing, a wide product range, and a focus on both functional and aesthetic improvements of replica firearms. One of its major advantages is its affordable price compared to competing brands. The 5KU product range covers M4, AK, and Hi-Capa GBB platforms and includes outer barrels, handguards, RIS mounts, as well as SOCOM suppressor replicas, compensators, stocks, ZenitCo-inspired AK components, and precision-engineered Hi-Capa parts such as slides, frames, and other Tokyo Marui-standard parts.
5KU products are made from high-quality materials (typically aluminum and steel), ensuring durability, resistance to wear, and a perfect fit on your gun. The brand prioritizes compatibility with popular manufacturers such as CYMA, LCT, GHK, E&L, and Tokyo Marui.
Thanks to its extensive lineup, 5KU is popular among both beginners and advanced builders and custom enthusiasts. It allows for simple and efficient weapon customization without major modifications or compromises. In summary, 5KU provides affordable, high-quality external components for fans of realistic design and technical refinement, whether for collectors or reenactors focusing on Russian or Western weapon platforms. The brand offers an outstanding price/performance balance without needing to invest in premium-level alternatives.
: 5KU
5KU23
Folding Airsoft Stock PT-1 Gen2 for AK by 5KU in black. Replica of the ZenitCo PT-1 stock. Compatible with GHK AK GBB rifles and AEG LCT AK and CYMA models with folding stock (AKS-74, AK74M, and others). Full-metal construction made of aircraft-grade aluminum with steel locks and sling mounts. Adjustable length and height-adjustable rubber cheek rest.
: 5KU
5KU30
CNC Upper Handguard B-31C for AK by 5KU in black. Variant inspired by ZenitCo for classic AK / AKM airsoft rifles. Lightweight CNC-machined aluminum with a top 20 mm RIS rail. Length of 195 mm. Designed to fit the B-30 lower handguard.
: 5KU
5KU28
CNC Lower Handguard B-30 for AK by 5KU in black. Long variant inspired by ZenitCo for classic AK / AKM airsoft rifles. Lightweight CNC-machined aluminum with integrated RIS rails. Dimensions of 255 × 53 × 38 mm, weight of 260 g. Not compatible with AK-74U or other short-barreled versions.
: 5KU
5KU15
Aluminum Airsoft RIS Vertical Grip PK-4 by 5KU in black. Replica of the ZenitCo vertical grip. CNC-machined aluminum construction. Dual screw mounting system for RIS rails. Built-in storage compartment with screw-on cap. Enhanced ergonomics for faster aiming and better control, especially on GBB rifles.
: 5KU
5KU18
Aluminum Airsoft RIS Vertical Grip PK-5 by 5KU in black. Replica of the ZenitCo grip. CNC-machined aluminum construction. Dual screw mounting system for RIS rails. Built-in storage compartment with screw-on cap. Enhanced ergonomics for faster aiming and a firmer hold, especially on GBB rifles.
: 5KU
5KU04
Airsoft QD Suppressor SOCOM 556 by 5KU in black. Comes with a 3-PRONG flash hider featuring a 14 mm CCW thread. Suppressor dimensions of 178 × 38 mm. Replica of the SF SOCOM556 suppressor. Hollow aluminum body with internal foam baffles for partial noise reduction. Compatible with tracer units.
: 5KU
5KU51
Airsoft RIS sling mount 5KU ZEN A-1 (ZA-1) is a replica of the ZenitCo mount in black finish. The construction from CNC-machined aluminum ensures solid attachment to a RIS rail using 2 screws, so you do not have to worry about the mount coming loose even on heavier guns. The design fits best with eastern-style rifles such as AK, AKM, AK-74 and similar...
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5KU32
5KU SS-8 Folding Stock with RIS (1913) Mount in black. SS-8 features a straight, reinforced design with a wide fixed buttplate. For RIS stock mounts (1913 / M1913), compatible with MCX / MPX, DA STRIBOG SP10 A3 and RIS adapters for M4, MP5, and AK platforms. Lightweight skeleton-style design made from aluminum. QD sling mount holes. Folds to both...
: 5KU
5KU33
5KU SS-8R Folding Stock with RIS (1913) Mount in black. SS-8R features an elevated cheek rest with a wide fixed buttplate. For RIS stock mounts (1913 / M1913), compatible with MCX / MPX, DA STRIBOG SP10 A3 and RIS adapters for M4, MP5, and AK platforms. Lightweight skeleton-style design made from aluminum. QD sling mount holes. Folds to both sides....
: 5KU
5KU08
CNC Red Dot Mount with RMR Footprint for G-Series GBB pistols by 5KU in black. Compatible exclusively with RMR red dots. Includes backup iron sights with fiber optic inserts. Installs directly on the pistol slide in place of the rear sight. Made from durable aluminum with a low-profile design for faster aiming.
: 5KU
5KU45
5KU DTK PP-19 / SAIGA-9 / AK Airsoft Suppressor in black. Short version – 105 mm in length. Replica of the ZenitCo DTK SW Saiga-9 suppressor, combining a flash hider and compensator design. Designed for PP-19 Vityaz, Bizon, Saiga-9 and other rifles with a 14 mm CCW thread. Made from CNC-machined aluminum. Hollow body with sound-dampening foam...
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5KU46
5KU SS-8 Airsoft Folding Stock for AK in black. Designed for AK rifles with folding stocks such as AKS-74N, AKS-74UN, AK-74M, AK-105 and others. Compatible with GHK, LCT, CYMA, Specna Arms, and JG (not compatible with E&L AK). Lightweight construction with a QD sling mount. Made from precision CNC-machined aluminum. Steel base fits directly onto the...
: 5KU
5KU14
Aluminum Airsoft RIS Grip ZRK-2 by 5KU in black. Replica of the ZenitCo PK-2 grip with authentic markings. CNC-machined aluminum construction. Dual-screw attachment for secure mounting on RIS rails. Integrated storage compartment with screw-cap lid. Improved ergonomics for faster aiming and steadier handling on GBB rifles.
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5KU25
CNC Lower Handguard ZB-11 for AK-74U by 5KU in black. Short variant inspired by ZenitCo B-11 handguard for AK-74U airsoft rifles. Lightweight CNC-machined aluminum with integrated RIS rails. Length 123 mm, weight 120 g. Designed exclusively for AK-74U and other compact AK variants.
: 5KU
5KU19
Aluminum Airsoft RIS Vertical Grip PK-1 by 5KU in black. Replica of the ZenitCo grip. CNC-machined aluminum construction. Dual screw mounting system for RIS rails. Built-in storage compartment with screw-on cap. Enhanced ergonomics for faster aiming and a firmer hold, especially on GBB rifles.
: 5KU
5KU21
Airsoft Suppressor DTK-4 with Inner Barrel (POWER-UP) by 5KU in black. Features 24mm CW threading, designed primarily for GHK / E&L AK rifles and others. Increases muzzle velocity by up to 15 m/s (≈0.25 J). Dimensions: 186 × 45 mm. Replica of the ZenitCo DTK-4 suppressor. Made from CNC-machined aluminum. Includes POWER-UP extended inner barrel with...
: 5KU
5KU13
Aluminum Gas Tube with RIS Rail for LCT AK AEG and GHK AK GBB Rifles by 5KU in black. CNC-machined aluminum – strong and lightweight design. Integrated 20 mm RIS rail on a standard gas tube. Designed for mounting red dot sights and other accessories. Stable installation with hex screws – no wobble or play.