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14.49
  • 87mm Extension
  • 14mm CCW threading on both ends
  • Strong alloy construction

This Slong Airsoft Outer Barrel Extension; 87mm will sit on the end of your current 14mm outer barrel and provide 87mm of extra barrel length but keep the same male 14mm CCW threading which can make all the difference when trying to get the perfect muzzle device to sit just right on the end of your weapon. Alternatively, it is perfect for making your outer barrel ridiculously long, if you are trying to achieve one seriously mean-looking DMR.

This barrel extension is extremely useful for mounting tracer units and large suppressors where you previously couldn't.

20.49
  • Aluminium construction
  • 14mm CCW male threaded tip
  • Fits most M4/AR-15 AEGs

If you are working on your CQB build you must be looking for an extremely short outer barrel, and this one certainly is that! The 5KU 8.7" 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 Airsoft rifle to be shorter this will get you halfway there, but don't forget you'll need a shorter inner barrel to match!

29.99
  • Aluminium construction
  • 14mm CCW male threading
  • Compatible with M4/AR-15 AEG

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! 

35.99
  • Aluminium construction
  • 14mm CCW male threaded tip
  • Fits most M4/AR-15 AEGs

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!

9.49
  • For 14mm CCW Suppressor
  • Allows the use of Suppressor
  • Fits to Threaded Outer Barrel

A 12mm to 14mm CCW thread adapter which will allow you to attach suppressors to your Raven only series gas blowback pistol.

10.99
  • 12mm CCW to 14mm CCW
  • For Female 12mm CCW
  • Install Suppressors/tracers

An alloy constructed thread adapter for Army Armament branded Airsoft pistols with a 12mm CCW female threaded outer barrel. If own an Army Armament pistol with a female thread on the outer barrel and want to install a suppressor, tracer unit or other muzzle device, then this is the adapter you require. It comes supplied with a knurled thread protector to prevent damage to the threads (and look awesome) when a muzzle device is not installed.

17.99
  • Two Inch Extension
  • 14mm CCW Threaded
  • Tough Alloy Construction

A two inch barrel extension for 14mm CCW threaded barrels, providing that little extra length should you wish to add a suppressor or tracer to your favourite RIF but can't because of a rail system being in the way.

15.49
  • One Inch Extension
  • 14mm CCW Threaded
  • Tough Alloy Construction

A one inch barrel extension for 14mm CCW threaded barrels, providing that little extra length should you wish to add a suppressor or tracer to your favourite RIF but can't because of a rail system being in the way.

20.49
  • 117mm Long
  • 5 Versions Available
  • Add Suppressors/Tracers

A 117mm barrel extension for any AEG with a 14mm CCW thread on the end of it. Perfect if you want to use a suppressor but can't because of a barrel that is recessed far inside the rail.

20.49
  • 117mm Long
  • 5 Versions Available
  • Add Suppressors/Tracers

A 117mm barrel extension for any AEG with a 14mm CCW thread on the end of it. Perfect if you want to use a suppressor but can't because of a barrel that is recessed far inside the rail.

20.49
  • 117mm Long
  • 5 Versions Available
  • Add Suppressors/Tracers

A 117mm barrel extension for any AEG with a 14mm CCW thread on the end of it. Perfect if you want to use a suppressor but can't because of a barrel that is recessed far inside the rail.

13.49
  • Converts to CW
  • Steel Construction
  • 18mm to 14mm Conveter

An adaptor which converts the 18mm thread on the Airsoft Scorpion Evo to a 14mm Counter Clockwise (CCW) Thread

13.49
Was 22.49
Save 9.00
  • For 11mm CW pistol barrels
  • Thread adapter with thread protector
  • Stainless steel construction


The A01 Silencer Adapter is intended to be used on pistols with an 11mm clockwise female threaded outer barrel, such as WE pistols. When installed, the adapter provides the common 14mm CCW male thread, allowing the majority of muzzle devices to be added. The adapter is constructed from stainless steel, and is available in black, gold or silver finishes.

20.49
  • Alloy construction
  • 12mm CW female threads
  • For Army Armament R601 and Hi-capa GBBs

This outer barrel is a replacement original part for the Army Armament R601 JW3 GBB pistol but should also be compatible with other Army Armament Hi-capas and 1911 GBB pistols. The barrel is constructed from alloy and comes with 12mm CW female threads at the tip, leaving options open for adding a tracer unit or suppressor using a 14mm CCW male thread adapter (available separately). The barrel may also be suitable for other Hi-capa and 1911 pistols based on the original TM design but may require modifications to be made for smooth function.

The barrel is finished in bronze and has authentic looking mock locking lugs across its upper surface, with "9x19" marked on the chamber area in recessed lettering. The barrel has a standard flared profile which tapers towards the chamber, matching the more common real steel Hi-capa barrels perfectly.

41.49
  • 14mm CCW Threads
  • Anodised Black Finish
  • Adjustable Grub Screw Guidance

A replacement outer barrel for M4/15/16 variants that is constructed entirely from a strong and durable Alloy.

18.99
  • Aluminium construction
  • 14mm CCW male threading
  • Compatible with M4/AR-15 AEG

If you are working on your CQB build you must be looking for the shortest barrel out there, and right now, this is it! The 5KU 7" 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 shorter this will get you halfway there, but don't forget you'll need a shorter inner barrel too! 

11.99
  • Alloy construction
  • 14mm CCW Male thread
  • Compatible with WELL MB series

Want a suppressor on your MB series rifle? This is what you'll need. Made from Robust alloy and finished in matt black, this suppressor adaptor will allow you to add any 14mm CCW threaded accessory to your WELL MB series sniper rifle.

10.99
  • For AGM 002
  • Steel Construction
  • 14mm CCW Thread

A Steel constructed thread adapter for the AGM 002 series Spring-Powered Sniper Rifle, giving you a 14mm CCW Thread at the end of your barrel for the installation of standard Airsoft Suppressors with a matching thread. This is the perfect addition to anyone who wants to add a tactical look to their AGM 002, or conceal an extended inner barrel with a Suppressor.

16.99
  • 76.2mm Long
  • Easy To Attach 
  • Add Suppressors/Tracers

A 76.2mm long barrel extension for any AEG with a 14mm CCW thread on its outer barrel.

21.49
  • Aluminium construction
  • Holds your battery inside the handguard
  • For Sig Air MPX Submachine Gun AEG

If you are rocking the Sig Air MPX and you are worried your battery will poke out of the handguard, worry no longer, Laylax have an innovative solution! The Handguard Battery Block for MPX AEG is designed to mount to the outer barrel using a grub screw and close the front end of the handguard up to stop your battery from hanging out when the SMG is pointed down. The block is constructed from aluminium with a matt black anodised finish and is styled to look like the gas block of the bigger MCX, meaning it shouldn't detract too much from the realistic looks of the MPX. This is why we love Laylax, they always come up with a nifty solution for these little niggles!

17.99
  • 14mm CCW Male thread adapter
  • For Novritsch SSG24 Sniper rifle
  • Mount a tracer unit or suppressor

If you want your SSG24 to be more sneaky or you want to light the enemy up with a tracer unit, this thread adapter will do the trick! The 14mm CCW Suppressor Thread Adapter for SSG24 is constructed from CNC machined aluminium and replaces the front barrel cap on the Novritsch SSG24, providing 14mm CCW male barrel threads. These are the most common barrel threads used on Airsoft rifles, so with this adapter installed you have all the options in the world when it comes to customising your SSG24 and making it truly yours.

7.49
  • Anodised aluminium
  • Fits Well MB-02
  • 14mm CCW male thread

Take your sniper to the next level and reduce those all-important decibels with a silencer adaptor. This aluminium constructed thread adaptor allows you to install muzzle devices such as suppressors and tracer units. Simply remove the barrel cap and replace it with this adaptor for a seamless transition to the muzzle device of your choice.

The adaptor provides a 14mm CCW thread to customise your replica, and is compatible with the MB-02 spring-powered Airsoft sniper rifles

71.49
  • M-LOK Handguard, outer & inner barrel set
  • Compatible with Novritsch SSR63 A2 and SSR63 A3
  • Perfect for CQB and aggressive skirmishers

If you have the Novritsch SSR63 A2 or A3 and it is a bit long for your playstyle, this is what you need to shorten her up a bit! The Novritsch Short Conversion Kit for SSR63 A2/A3 AEG includes a "C" length outer barrel with 14mm CCW male threads at the tip, a 6.03mm tightbore inner barrel and a CNC aluminium M-LOK handguard with 20mm Picatinny rail sections in key locations. 

This set includes everything you need to transform your SSR63 A2 or A3 into the short configuration, shaving a few precious inches off the barrel so you can clear corners more effectively and have better mobility in CQB scenarios. Whether you want to hot-swap your SSR63 A2/A3 for the odd CQB game or you prefer a shorter primary to maximise aggression, this kit should suit you perfectly!

8.49
  • Aluminium construction
  • Fits 16mm CW Male threads
  • Mount a Swiss Arms barrel extension/silencer

If you want to mount a Swiss Arms barrel extension/silencer to your Cybergun FNX-45 GBB this is the part you need. This adapter is constructed from aluminium and fits 16mm CW male threaded outer barrels, allowing for a Swiss Arms barrel extension/silencer to be mounted to your FNX-45 Tactical or MK23 pistol.

29.99
  • Aluminium construction
  • 14mm CCW male threaded tip
  • Fits most M4/AR-15 AEGs

If you're looking for a new outer barrel to change up the length of your M4/AR-15 AEG, the 5KU 10.3" Aluminium Outer Barrel for M4/AR-15 AEG is a fantastic option. Constructed from aluminium with 14mm CCW male threading at the tip, this 10.3-inch outer barrel is styled to match the profile of real 10.3" CQBR barrels and includes pin holes for mounting an M4/AR-15 front sight/gas block at the "carbine length" position. 

The 5KU 10.3" 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 shortening your barrel to a more CQB-friendly size or giving it a bit more length for more long-range effect, the 5KU 10.3" Aluminium Outer Barrel belongs on your M4 AEG!

35.99
  • Bright colours!
  • CNC Anodised aluminium
  • 14mm CCW male threading

The Novritsch SSP18 CNC TDC Outer Barrel is a great way to brighten up your SSP18 pistol! It comes in an array of colours and allows you to customise your pistol and make it unique to you. The outer barrel is constructed from CNC anodised aluminium, this creates an amazing finish and ensures that the product will be of the highest quality. This product is specifically designed for the Novritsch SSP18 and we can not guarantee fitment with any other Airsoft pistols.

The outer barrel features 14mm male CCW threading on the tip, this makes it ready for mounting most common muzzle devices. It also features a TDC screw so you can easily adjust your HOP-up without having to disassemble your pistol, all you need is a 1.5mm Hex-key!

35.99
  • Bright colours!
  • CNC Anodised aluminium
  • 14mm CCW male threading

The Novritsch SSP18 CNC TDC Outer Barrel is a great way to brighten up your SSP18 pistol! It comes in an array of colours and allows you to customise your pistol and make it unique to you. The outer barrel is constructed from CNC anodised aluminium, this creates an amazing finish and ensures that the product will be of the highest quality. This product is specifically designed for the Novritsch SSP18 and we can not guarantee fitment with any other Airsoft pistols.

The outer barrel features 14mm male CCW threading on the tip, this makes it ready for mounting most common muzzle devices. It also features a TDC screw so you can easily adjust your HOP-up without having to disassemble your pistol, all you need is a 1.5mm Hex-key!

35.99
  • Bright colours!
  • CNC Anodised aluminium
  • 14mm CCW male threading

The Novritsch SSP18 CNC TDC Outer Barrel is a great way to brighten up your SSP18 pistol! It comes in an array of colours and allows you to customise your pistol and make it unique to you. The outer barrel is constructed from CNC anodised aluminium, this creates an amazing finish and ensures that the product will be of the highest quality. This product is specifically designed for the Novritsch SSP18 and we can not guarantee fitment with any other Airsoft pistols.

The outer barrel features 14mm male CCW threading on the tip, this makes it ready for mounting most common muzzle devices. It also features a TDC screw so you can easily adjust your HOP-up without having to disassemble your pistol, all you need is a 1.5mm Hex-key!

35.99
  • Bright colours!
  • CNC Anodised aluminium
  • 14mm CCW male threading

The Novritsch SSP18 CNC TDC Outer Barrel is a great way to brighten up your SSP18 pistol! It comes in an array of colours and allows you to customise your pistol and make it unique to you. The outer barrel is constructed from CNC anodised aluminium, this creates an amazing finish and ensures that the product will be of the highest quality. This product is specifically designed for the Novritsch SSP18 and we can not guarantee fitment with any other Airsoft pistols.

The outer barrel features 14mm male CCW threading on the tip, this makes it ready for mounting most common muzzle devices. It also features a TDC screw so you can easily adjust your HOP-up without having to disassemble your pistol, all you need is a 1.5mm Hex-key!

177.99
  • CNC Aluminium construction
  • Handguard, suppressor & barrel for SUR300
  • Compatible with SigAir MCX Virtus AEG

If you want your MCX build to stand out, the Airsoft Artisan 10" SUR300 Handguard, Suppressor & Outer Barrel for MCX Virtus will do the trick! This set includes a CNC aluminium wide-profile M-LOK handguard, a 7-inch aluminium outer barrel and an SRD762 suppressor replica, also machined from aluminium with flawless engraved markings. If you were umming and ahhing about how to deck out your MCX, this kit is a great all-in-one external upgrade!

The SUR300 is the .300 Blackout upper receiver set for the real MCX, offered as a kit to Military and Law Enforcement customers and also to civilians in a slightly longer form to keep the ATF happy. When built up, the SUR300 is absolutely beastly looking, a marriage of the menacing AAC Honey Badger's integrally suppressed aesthetic with the more modern receiver style of the MCX.

Being an Airsoft Artisan set, you better believe this is at the absolute pinnacle of Airsoft quality and well-suited to the equally gorgeous SigAir MCX Virtus. If you're into cutting edge modern platforms with a stealthy aesthetic, get the SUR300 Handguard, Suppressor & Outer Barrel belong on your MCX!

About Our Airsoft Outer Barrels & Barrel Extensions

Want to shorten or extend your replica? Here at Patrol Base we have a wide variety of airsoft outer barrels and barrel extensions in a variety of lengths, shapes and sizes for a range of different airsoft 6mm BB guns. Whether you’re looking for an airsoft barrel extension or outer barrel for your submachine gun, assault rifle or sniper rifle, you’ll find it here, as well as parts to fit them with ease.

Looking to suppress your airsoft pistol or rifle but don't have a threaded barrel? We have a range of silencer and suppressor adaptors that allow them to be attached easily to your airsoft gun. Once you’ve got that sorted, browse our selection of silencers and suppressors to attach to your brand new adaptor.

You can browse our entire airsoft outer barrel and barrel extension offering online or get a feel for them in person at our Huddersfield store.