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£16.99
  • 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.

£16.99
  • 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.

£16.99
  • 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.

£10.99
  • 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

£12.99
  • 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.

£18.99
  • 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.

£18.99
  • 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.

£34.99
  • 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.

£8.99
  • Fits VORSK
  • For 12mm Thread
  • Attach Suppressors

This Thread Adapter is designed for VORSK Pistols that have an 12mm Female Thread (the Thread is recessed inside the Outer Barrel). Whether you have lost the original supplied with your Pistol, or you want to install a Supressor/Tracer Unit to your Pistol, this adapter is an absolute must for those who want a standard thread (14mm CCW Male) on their sidearm.

£8.99
  • Fits VORSK
  • For 12mm Thread
  • Attach Suppressors

This Thread Adapter is designed for VORSK Pistols that have an 12mm Female Thread (the Thread is recessed inside the Outer Barrel). Whether you have lost the original supplied with your Pistol, or you want to install a Supressor/Tracer Unit to your Pistol, this adapter is an absolute must for those who want a standard thread (14mm CCW Male) on their sidearm.

£12.99
  • CQB Style Barrel
  • 14mm CCW Thread
  • Aluminium Construction

An Aluminium constructed outer barrel for M4/M16 based Airsoft Electric replicas. It has a 14mm CCW thread at the end for the addition of muzzle devices and is a relatively easy part to install.

£13.99
  • 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.

£18.99
  • 14mm CCW Thread
  • Removable Extension
  • Slots for A-Frame Post

A Two-Piece Outer Barrel Assembly for AR/M4/M16 Platform Airsoft Replicas, constructed to a tough standard using Aluminium. The Two Piece design allows you run the barrel in a short configuration, ending just after the A-Frame Sight Post, or in it's longest configuration with the extension piece installed. Both sections of the Outer Barrel feature a 14mm CCW Thread for the installation of Suppressors, Tracer Units and other Muzzle Devices.

£3.99
Was £4.99
Save £1.00
  • For 14mm Clockwise threaded barrel
  • Provides a 14mm CCW thread
  • Allows more common CCW accessories to be used

If you have ever felt like you messed up buying a rifle with a 14mm clockwise threaded barrel, weep no more! This 14mm CW to 14mm CCW thread adapter attaches to any 14mm CW male thread and provides a 14mm CCW male thread for the addition of more common CCW threaded accessories!

£18.99
  • 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!

£109.99
  • CNC Aluminium construction
  • Outer barrel, handguard & gas block included
  • For Sig Air MCX AEG

If you are looking for a CQB-optimised MCX setup the Laylax Short M-LOK handguard & Outer barrel set would be one way to get there! This CNC machined aluminium handguard, outer barrel and gas block set replaces the original parts from the Sig Air MCX AEG, making it into an ultra-compact platform to contend with all the micro-AR platforms dominating CQB sites.

Just like the original, this handguard boasts M-LOK compatibility, with slots available at the 3, 6, and 9 o'clock positions and the included 7-inch outer barrel has 14mm CCW male threading at the tip, ready for a suppressor or tracer for the sneaky types. If you find your MCX is a bit long and you prefer something more compact, no need to look at a new platform, just swap out a few parts and your MCX will fit right in your back pocket!

£29.99
  • For ASG MP9
  • Aluminium construction
  • Provides a 14mm CCW Male thread

This adapter attaches to the muzzle device of the MP9 GBB and provides a 14mm CCW male thread for attaching tracer units, suppressors, or alternative flash hiders.

£69.99
Was £94.99
Save £25.00
  • Steel construction
  • For TM Hi-capa 4.3 GBB and clones
  • .45 ACP engraved into the chamber area

For those looking for a more realistic handling experience from their Hi-capa 4.3, Airsoft Masterpiece has come through again, this time with a steel outer barrel complete with 11mm CW female threads! This outer barrel is constructed entirely from steel, and is immaculately finished down to each dummy locking ridge and the .45 ACP engraving on the chamber. Adding a steel barrel can alter your pistols handling characteristics considerably, raising the point of balance and making it feel more like a real firearm.

£7.99
  • Low Profile
  • Replacement Gas Block
  • Operator Style Platform

An impressive looking replacement Gas Block for your M4 GBB, designed to be as inobtrusive as possible. Due to the Gas Block's low profile, not only is it possible to fit inside Free-Float RIS type Handguards, but it also offers users an unobstructed and clear sightview; 

£39.99
  • Build for super lightweight set-ups
  • Nylon and carbon fibre
  • Only around 30 grams!

The Monk outer barrels are build for super lightweight set-ups!

By using nylon and carbon fibre the outer barrels weighs in at only around 30 grams! It is the most lightweight outer barrel on the market today.

This outer barrel is compatible with the Monk GO Series, Monk OG Series and all other M4 series.

£39.99
  • Build for super lightweight set-ups
  • Nylon and carbon fibre
  • Only around 30 grams!

The Monk outer barrels are build for super lightweight set-ups!

By using nylon and carbon fibre the outer barrels weighs in at only around 30 grams! It is the most lightweight outer barrel on the market today.

This outer barrel is compatible with the Monk GO Series, Monk OG Series and all other M4 series.

£39.99
  • Build for super lightweight set-ups
  • Nylon and carbon fibre
  • Only around 30 grams!

The Monk outer barrels are build for super lightweight set-ups!

By using nylon and carbon fibre the outer barrels weighs in at only around 30 grams! It is the most lightweight outer barrel on the market today.

This outer barrel is compatible with the Monk GO Series, Monk OG Series and all other M4 series.

£39.99
  • Build for super lightweight set-ups
  • Nylon and carbon fibre
  • Only around 30 grams!

The Monk outer barrels are build for super lightweight set-ups!

By using nylon and carbon fibre the outer barrels weighs in at only around 30 grams! It is the most lightweight outer barrel on the market today.

This outer barrel is compatible with the Monk GO Series, Monk OG Series and all other M4 series.

£39.99
  • Build for super lightweight set-ups
  • Nylon and carbon fibre
  • Only around 30 grams!

The Monk outer barrels are build for super lightweight set-ups!

By using nylon and carbon fibre the outer barrels weighs in at only around 30 grams! It is the most lightweight outer barrel on the market today.

This outer barrel is compatible with the Monk GO Series, Monk OG Series and all other M4 series.

£39.99
  • Build for super lightweight set-ups
  • Nylon and carbon fibre
  • Only around 30 grams!

The Monk outer barrels are build for super lightweight set-ups!

By using nylon and carbon fibre the outer barrels weighs in at only around 30 grams! It is the most lightweight outer barrel on the market today.

This outer barrel is compatible with the Monk GO Series, Monk OG Series and all other M4 series.

£44.99
  • Steel construction
  • Prevents barrel wobble
  • For SigAir MCX Virtus AEG

If your MCX AEG has developed a bit of barrel wobble there is no need to take your suppressor off! Laylax is here to save the day with the Outer Barrel Support for MCX Virtus AEG. This piece is constructed from steel and mounts to the outer barrel base, locking it firmly in place and preventing even the slightest hint of wobble from developing, no matter how heavy your muzzle device is.

Installing this part will keep your outer barrel straight and true within the handguard and not only improves the structural strength of the MCX but should also improve accuracy by minimising flex in the inner barrel by giving the outer barrel a firm foundation. The Outer Barrel Support is constructed from steel, giving it more than enough strength to do its job perfectly.

£6.99
  • Aluminium construction
  • Pack of 10 x barrel shims - 0.1mm thickness
  • For M4/AR15 AEG and GBBR

If you have switched out the handguard or outer barrel on your M4/AR15 and now it wobbles you need Laylax's barrel shims to firm it up! These shims are basically small discs of aluminium which can be sandwiched between the outer barrel and upper receiver to adjust the fit with various different barrel nuts. If you are building an M4 platform, be it an AEG or GBBR, these handy shims are essential to have in the toolbox if you want a new handguard or outer barrel to fit perfectly at the right place with no wobble whatsoever.

£15.99
  • 2cm Extension
  • For Ares Striker
  • Alloy Construction

A threaded extension for Ares Striker sniper rifles which will add an extra 2cm to your outer barrel.

£17.99
  • Stainless steel construction
  • Provides a 14mm CCW male thread
  • For 11mm CW female threaded GBB pistols

The A01 Silencer Adapter is intended to be used on pistols with an 11mm CW female threaded outer barrel, such as WE pistols. When installed, the adapter provides the common 14mm CCW male thread, allowing suppressors or tracers to be mounted should the mission require it. This adapter is designed with a modern, custom look, and includes its own thread protector with the thread diameter and pitch engraved in, as well as flat sections machined into the sides to allow the thread protector to be effectively tightened down. This thread adapter also sports the elegant "heat gradation" finish, making it certain to turn heads on the field!

£24.99
  • Aluminium construction
  • 14.5" Heavy profile barrel - 14mm CCW male threads
  • Compatible with M4/AR15 AEG rifles

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.

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.