5KU Airsoft

If you are building an M4 from the ground up or you want a new look for your M4/AR15 platform this 5KU Aluminium outer barrel is worth a look! This barrel is 14.5 inches in length, just like the standard carbine length M4 barrel but has a heavier profile towards the tip to simulate real-world heavy barrels which allow for more sustained fire before accuracy takes a dive due to heat build-up.

The barrel is constructed from two parts, the barrel itself and the barrel base which are secured together using a pair of steel grub screws. At the tip we have the Airsoft standard 14mm CCW male threading, leaving you with a wealth of options for what muzzle device you choose to mount. The profile of the barrel matches real M4 barrels throughout its length, making this a great choice as a replacement for those who don't like seeing what is clearly a skinny Airsoft barrel through the ports on their handguard. This barrel is designed for M4/AR15 AEGs and should fit the vast majority of them.

If you are working on a multifunctional platform, ready for both indoor and outdoor skirmishes, then this is it! The 5KU 11.5" Aluminium Outer Barrel For M4/AR-15 AEG is compatible with most M4/AR-15 AEGs and is constructed from aluminium for a perfect balance between low weight and high strength. 

The barrel is threaded at the tip with common 14mm CCW male threading, meaning you can mount the most common muzzle devices on the market with ease, including tracer units, suppressors and flash hiders in various styles. Also present are grooves in the underside to allow a gas block or M4/AR-15 triangular front iron sights to be mounted, though this is not essential. If you need your M4 to be ready for any situation then this will get you halfway there, but don't forget you'll need a matching inner barrel too! 

If you are looking for a Tracer Unit with Russian styling the KP-9 Spitfire Tracer Unit from 5KU is one to keep an eye on. This device is based on the real world MPI KP-9 flash suppressor used by Russian Special Forces with their PP-19-01 SMGs and is ideal for any 9mm style Airsoft SMG but will fit any Airsoft rifle with a 14mm CCW male threaded barrel.

This KP-9 isn't just about the looks either, inside you will find a Spitfire Tracer insert which illuminates green tracer BBs and provides a realistic muzzle flash effect each time you fire. The unit can be operated in flash only, tracer only or tracer and flash mode, giving plenty of options for the aggressive, the realism focussed and the more stealthy playstyles out there. Whether you run a PP-19 AEG or you are looking for the most menacing looking Spitfire tracer unit out there, this will do the trick!

If you are building your dream tactical AK, a railed dust cover can be a great addition to give you more optic mounting options, and the elite tactical look. The 5KU 20mm Railed Tactical AK Receiver Cover is designed to work with Z-Co style handguards and provides a 17-slot 20mm Picatinny rail on its upper surface, and a hinge mechanism which connects it to a Z-Co handguard for functionality similar to the ASK-74U, making battery changes a breeze for those who run a top wired AK. If you are working on your own Spetsnaz build, your AK needs this!

If you're looking for a new outer barrel to make your M4/AR-15 AEG perfect for woodland skirmishes, the 5KU 16" Aluminium Barrel for M4/AR-15 AEG is a fantastic option. Constructed from aluminium with 14mm CCW male threading at the tip, this 16-inch outer barrel includes pin holes for mounting an M4/AR-15 front sight/gas. 

The 5KU 16" Aluminium Outer Barrel for M4/AR-15 AEG has the standard Tokyo Marui AEG outer barrel fitting at the rear, meaning it should fit the vast majority of M4/AR-15 platform AEGs but won't fit NGRS M4s or GBBRs. Whether you're extending your barrel for the improved long-range effect or you just want your Airsoft rifle to look rather long and intimidating, the 5KU 16" Aluminium Outer Barrel belongs on your M4 AEG, Just remember to pick up a matching inner barrel!

Made from 6061 Aluminium with a matt black anodised finish, this ALPHA KeyMod handguard for AK47/AK74/AKM provides all the latest advantages to this venerable platform. With the real version of the ALPHA being in service with the Russian military, you can dress your AK like Spetsnaz with no gains in weight, owed to this handguards lightweight design. With 5 surfaces to mount your accessories, you can mod more keys onto this than your typical AR15 handguard!

Compatible with INOKASU, GHK, LCT and Tokyo Marui replicas.

If you're looking for a new outer barrel to make your M4/AR-15 AEG reach the moon, the 5KU 18" Aluminium Barrel for M4/AR-15 AEG is a fantastic option. Constructed from aluminium with 14mm CCW male threading at the tip, this 18-inch outer barrel includes pin holes for mounting an M4/AR-15 front sight/gas. 

The 5KU 18" Aluminium Outer Barrel for M4/AR-15 AEG has the standard Tokyo Marui AEG outer barrel fitting at the rear, meaning it should fit the vast majority of M4/AR-15 platform AEGs but won't fit NGRS M4s or GBBRs. Whether you're extending your barrel for the improved long-range effect or you just want your Airsoft rifle to look massive and intimidating, the 5KU 18" Aluminium Outer Barrel belongs on your M4 AEG!

If you're building out your AK to match the latest real steel builds, the 5KU Lightweight Zco Style Lower Handguard for AK-47/74 is an essential bit of kit. Based on the real steel Zco B30 handguard, this CNC 6061 aluminium lower handguard is designed to fit CYMA, GHK and LCT AK rifles and provides a full length 20mm Picatinny rail at 6 o'clock and a short length at 3 o'clock. 

Additional accessories can be mounted using Zco style rail adapters, and despite being double the length of standard AK handguards, the Lightweight Zco Style Lower Handguard tips the scales at a minuscule 174g, meaning it won't slow you down in-game. If your AK is due for a makeover, give it the modern touch it deserves with the Lightweight Zco Style Lower Handguard for AK-47/74 from 5KU!

Adding rails to your AK can be a chore, but users of the superb GHK AK GBBR platform now have one more option! Introducing the 20mm Picatinny Railed Gas Tube for GHK AK GBBR, an aluminium replacement gas tube with a 20mm Picatinny rail built into its upper surface. This rail is great for a forward-mounted optic but has plenty of space for mounting a tactical flashlight and also a PEQ laser if you have your primary sight mounted on a rail further back. If you are looking for a simple way to give your GHK AK GBBR a hint of modernity, this is the perfect piece!

If you are looking for a suppressor for your lil' AK, you have found the right one. The real world PBS-4 is designed for use on the AKS-74U rifle, but has also been seen in use on full length AK74s!

If you're building out your AK to match the latest real steel builds, the 5KU 20mm Picatinny Rail Mount for Zco AK handguard is essential. Based on real steel Zco-style red dot risers, this aluminium component fits replica Zco-style handguards such as the 5KU Lightweight Zco-style Lower Handguard. It will only attach to these styles of handguards due to the unique attachment interface.

Atop the riser is a section of 20mm Picatinny rail, perfect for mounting a red dot that matches the modern Russian design. If your modern Zco-style AK requires optic space for longer-range engagements, the 5KU 20mm Picatinny Rail Mount for Zco AK handguard is the piece of equipment for you.

If you're looking for a new outer barrel to make your M4/AR-15 AEG poke into next week, the 5KU 20" Aluminium Barrel for M4/AR-15 AEG is a fantastic option. Constructed from aluminium with 14mm CCW male threading at the tip, this 20-inch outer barrel includes pin holes for mounting an M4/AR-15 front sight/gas. 

The 5KU 20" Aluminium Outer Barrel for M4/AR-15 AEG has the standard Tokyo Marui AEG outer barrel fitting at the rear, meaning it should fit the vast majority of M4/AR-15 platform AEGs but won't fit NGRS M4s or GBBRs. Whether you're extending your barrel for the improved long-range effect or want your Airsoft rifle to also be effective at jousting, the 5KU 20" Aluminium Outer Barrel belongs on your M4 AEG!

If your AK is equipped with an ALFA-style lower handguard, this is the upper handguard you need to complete the build! The 5KU ALFA 20mm Picatinny Upper Handguard for AK ALFA Handguards is CNC machined from aluminium and provides a 20mm Picatinny rail up top, ready for a laser, flashlight or any other 20mm rail-mounted accessory. 

This upper handguard is designed specifically to be paired with the 5KU ALFA lower handguard, mounting via the threaded holes along each side. The set also includes the screws you'll need to bolt your new upper handguard to your ALFA lower handguard. If your ALFA style lower handguard is looking a bit lonely, add the 5KU ALFA 20mm Picatinny Upper Handguard for AK ALFA Handguards to complete the look!

Looking for a mini-suppressor you can add and remove when you feel like it? Check out the Dummy Special Force Sound Suppressor from 5KU! Mimicking a real firearm suppressor, this thing functions more like a sound amplifier for Airsoft purposes and gives your primary and intimidating muzzle report.

If you need some tracer action in your life but you run a shotgun, the 5KU Tracer Choke for Shotguns is what you want! This aggressively styled tracer unit mimics real steel shotgun breaching chokes and provides muzzle flash and tracer functionality to any Airsoft shotgun with an outer barrel with a 22.5mm or 23.5mm outer diameter.

The tracer mounts via 4 grub screws on the collar using friction, and we recommend ensuring the screws are properly tight and the unit is mounted straight before testing it out. The activation button is located underneath the rear collar, as is the USB Type-C charger port for the integral rechargeable battery, requiring the rear collar to be unscrewed to access. Available modes include tracer with muzzle flash, tracer only and muzzle flash only, ideal for those who want all the fire but none of the tracer and those who want tracer functions without lighting up the room and giving their location away. 

Two variants of the Tracer Choke are available to suit different shotguns; one for 22.5mm outer diameter barrels and one for 23.5mm. Make sure you measure up before ordering! If you grace CQB sites with a trusty shotgun at your side, the 5KU Tracer Choke for Shotguns is a must!

If you need some tracer action in your life but you run a shotgun, the 5KU Tracer Choke for Shotguns is what you want! This aggressively styled tracer unit mimics real steel shotgun breaching chokes and provides muzzle flash and tracer functionality to any Airsoft shotgun with an outer barrel with a 22.5mm or 23.5mm outer diameter.

The tracer mounts via 4 grub screws on the collar using friction, and we recommend ensuring the screws are properly tight and the unit is mounted straight before testing it out. The activation button is located underneath the rear collar, as is the USB Type-C charger port for the integral rechargeable battery, requiring the rear collar to be unscrewed to access. Available modes include tracer with muzzle flash, tracer only and muzzle flash only, ideal for those who want all the fire but none of the tracer and those who want tracer functions without lighting up the room and giving their location away. 

Two variants of the Tracer Choke are available to suit different shotguns; one for 22.5mm outer diameter barrels and one for 23.5mm. Make sure you measure up before ordering! If you grace CQB sites with a trusty shotgun at your side, the 5KU Tracer Choke for Shotguns is a must!

This is one for the AK lovers! The Russian Firearm Fanatics and the Weekend Gopnik Operators, here to complete the tactical aesthetic of your AK is the 5KU PT-3 Telescopic Stock, featuring a full alloy construction and a rubber butt pad, this replica PT-3 Classica stock is a fine addition to your Eastern Operator loadout.