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52.99
  • Replacement hammer set
  • Stainless steel finish
  • For AAP-01 Assassin GBB

If you are working on your dream AAP-01 build you will want it to be performing to its maximum until the end of time. An upgraded hammer is a great way to improve your AAP-01's longevity and its resistance to wear. The CowCow SS Hammer Set is constructed from CNC machined alloy with a stainless steel finish and is highly polished for smooth operation with minimal friction.

22.49
  • 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.

3.99
  • 140% Hammer spring
  • Improves recoil and slide speed
  • For Tokyo Marui EU series GBB Pistol

Looking for more recoil from your EU series GBB pistol? Installing a stronger hammer spring should do the trick! This 140% Hammer Spring from CowCow replaces the original hammer spring in your Tokyo Marui based EU series pistol and provides additional force for each hammer strike, releasing more gas and providing higher FPS and improved recoil and slide speed! This part is constructed from high strength spring steel and is hard-coated to prevent corrosion.

29.49
  • Aluminium construction
  • For Tokyo Marui EU series & AAP-01 GBB pistols
  • Each trigger comes with 3 trigger safeties in different colours

If you want to add a touch of style to your plain jane EU series or AAP-01 GBB pistol, the CowCow Tactical Trigger is a great way to set your pistol out from the crowd. This trigger is available in three colour options; matt black for a more tactical look, silver for a touch of class, or gold for those after a "loud and proud" look. 

Each colour option includes even more options when it comes to the trigger safety extension, as each set comes with a red, gold and black extension piece to choose from. This trigger is a partially flat design for additional speed but also includes a finger ledge to prevent your spritely trigger finger from slipping off. This trigger is designed for the Tokyo Marui EU series of GBB pistols and is also compatible with the Action Army AAP-01 and AAP-01C, but may also fit some other EU pistols based on the TM design.

29.49
Was 52.99
Save 23.50
  • 6061 CNC Aluminium construction
  • Magazine well extension - Speed ups reloads
  • For AAP GBB pistol

This is for those of you looking for quicker reloads as well as making your Action Army Pistol look 'blinged out'. If you love your pistol and want to treat it to something special, this makes a nice addition to your mod. But how does it reduce reload speeds you ask? Well the magwell has been designed with a wide flare and bevelled inner surface to help guide your magazine into your pistol smoothly and instantaneously; "Eyes up" reloading will become second nature to you, perfect for competition shooting as well as skirmishing.

29.49
Was 52.99
Save 23.50
  • 6061 CNC Aluminium construction
  • Magazine well extension - Speed ups reloads
  • For AAP GBB pistol

This is for those of you looking for quicker reloads as well as making your Action Army Pistol look 'blinged out'. If you love your pistol and want to treat it to something special, this makes a nice addition to your mod. But how does it reduce reload speeds you ask? Well the magwell has been designed with a wide flare and bevelled inner surface to help guide your magazine into your pistol smoothly and instantaneously; "Eyes up" reloading will become second nature to you, perfect for competition shooting as well as skirmishing.

29.49
Was 52.99
Save 23.50
  • 6061 CNC Aluminium construction
  • Magazine well extension - Speed ups reloads
  • For AAP GBB pistol

This is for those of you looking for quicker reloads as well as making your Action Army Pistol look 'blinged out'. If you love your pistol and want to treat it to something special, this makes a nice addition to your mod. But how does it reduce reload speeds you ask? Well the magwell has been designed with a wide flare and bevelled inner surface to help guide your magazine into your pistol smoothly and instantaneously; "Eyes up" reloading will become second nature to you, perfect for competition shooting as well as skirmishing.

29.49
Was 52.99
Save 23.50
  • 6061 CNC Aluminium construction
  • Magazine well extension - Speed ups reloads
  • For AAP GBB pistol

This is for those of you looking for quicker reloads as well as making your Action Army Pistol look 'blinged out'. If you love your pistol and want to treat it to something special, this makes a nice addition to your mod. But how does it reduce reload speeds you ask? Well the magwell has been designed with a wide flare and bevelled inner surface to help guide your magazine into your pistol smoothly and instantaneously; "Eyes up" reloading will become second nature to you, perfect for competition shooting as well as skirmishing.

29.49
Was 52.99
Save 23.50
  • 6061 CNC Aluminium construction
  • Magazine well extension - Speed ups reloads
  • For AAP GBB pistol

This is for those of you looking for quicker reloads as well as making your Action Army Pistol look 'blinged out'. If you love your pistol and want to treat it to something special, this makes a nice addition to your mod. But how does it reduce reload speeds you ask? Well the magwell has been designed with a wide flare and bevelled inner surface to help guide your magazine into your pistol smoothly and instantaneously; "Eyes up" reloading will become second nature to you, perfect for competition shooting as well as skirmishing.

9.49
  • Stainless steel construction
  • Titanium coated
  • For Tokyo Marui Hi-capa and 1911 GBB pistols

If you are building out your dream Airsoft Hi-capa GBB pistol, the CowCow Stainless Steel hammer strut would be a great addition if you require an improved trigger feel and better mechanical engagement. This part is constructed from stainless steel with a titanium coating to prevent corrosion and warping. When installed into your TM based Hi-capa or 1911 GBB this part should help improve shot to shot consistency and provide longevity far beyond the original parts.

9.49
  • Stainless steel construction
  • Titanium coated
  • For Tokyo Marui Hi-capa and 1911 GBB pistols

If you are building out your dream Airsoft Hi-capa GBB pistol, the CowCow Stainless Steel hammer strut would be a great addition if you require an improved trigger feel and better mechanical engagement. This part is constructed from stainless steel with a titanium coating to prevent corrosion and warping. When installed into your TM based Hi-capa or 1911 GBB this part should help improve shot to shot consistency and provide longevity far beyond the original parts.

40.99
  • Aluminium alloy construction
  • For AAP-01 Assassin pistol
  • Available in various colours

If you're looking to increase your style points and really bling out your Action Army AAP Assassin, an Enhanced Aluminium Trigger Housing would be a perfect upgrade. However, the housing provides not only form but function too! The guard reduces friction to minimize slide wobble for a smooth, more pleasing shooting experience.

The trigger guard housing is constructed of CNC Aluminium Alloy, with a higher strength than the base unit and is therefore more reliable It has a hard anodised finish and is available in various colours, so if you ever want to show off, you can pop the hood of your AAP and reveal your choice of trigger housing for some serious style!

40.99
  • Aluminium alloy construction
  • For AAP-01 Assassin pistol
  • Available in various colours

If you're looking to increase your style points and really bling out your Action Army AAP Assassin, an Enhanced Aluminium Trigger Housing would be a perfect upgrade. However, the housing provides not only form but function too! The guard reduces friction to minimize slide wobble for a smooth, more pleasing shooting experience.

The trigger guard housing is constructed of CNC Aluminium Alloy, with a higher strength than the base unit and is therefore more reliable It has a hard anodised finish and is available in various colours, so if you ever want to show off, you can pop the hood of your AAP and reveal your choice of trigger housing for some serious style!

40.99
  • Aluminium alloy construction
  • For AAP-01 Assassin pistol
  • Available in various colours

If you're looking to increase your style points and really bling out your Action Army AAP Assassin, an Enhanced Aluminium Trigger Housing would be a perfect upgrade. However, the housing provides not only form but function too! The guard reduces friction to minimize slide wobble for a smooth, more pleasing shooting experience.

The trigger guard housing is constructed of CNC Aluminium Alloy, with a higher strength than the base unit and is therefore more reliable It has a hard anodised finish and is available in various colours, so if you ever want to show off, you can pop the hood of your AAP and reveal your choice of trigger housing for some serious style!

14.49
  • Aluminium construction
  • Available in heat gradation, gold, black and red
  • For Action Army AAP-01 Assassin GBB Pistol

If you are styling your AAP-01 up this part would be great to add a bit of flair to your custom job. The Upper Receiver Lock Button from CowCow is constructed from aluminium, making it stronger than the original, but more importantly, it is available in several exciting colour options! Available in tactical black for more discrete builds or gold, red and glorious heat gradation for those looking for a more eye-catching pistol, the CowCow upper receiver lock button is great for any AAP style!

14.49
  • Aluminium construction
  • Available in heat gradation, gold, black and red
  • For Action Army AAP-01 Assassin GBB Pistol

If you are styling your AAP-01 up this part would be great to add a bit of flair to your custom job. The Upper Receiver Lock Button from CowCow is constructed from aluminium, making it stronger than the original, but more importantly, it is available in several exciting colour options! Available in tactical black for more discrete builds or gold, red and glorious heat gradation for those looking for a more eye-catching pistol, the CowCow upper receiver lock button is great for any AAP style!

17.99
  • Aluminium construction
  • Competition styled magazine baseplate
  • For Tokyo Marui EU series GBB pistols

The Hi-capa people have their CNC machined magazine baseplates, when do the EU series fans get theirs? Finally, thanks to CowCow Technologies, users of the EU series of GBB handguns can now run aluminium magazine baseplates, making magazines easier to pull from pouches and adding a touch of flair too! The Tactical Aluminium Magazine Baseplate is machined from 6061 aluminium and is finished in a beautiful matt anodising in one of 4 eye-catching colour options!

17.99
  • Aluminium construction
  • Competition styled magazine baseplate
  • For Tokyo Marui EU series GBB pistols

The Hi-capa people have their CNC machined magazine baseplates, when do the EU series fans get theirs? Finally, thanks to CowCow Technologies, users of the EU series of GBB handguns can now run aluminium magazine baseplates, making magazines easier to pull from pouches and adding a touch of flair too! The Tactical Aluminium Magazine Baseplate is machined from 6061 aluminium and is finished in a beautiful matt anodising in one of 4 eye-catching colour options!

14.49
  • Replacement grip screw x2
  • For TM Hi-capa 4.3/5.1
  • Stainless Steel construction

If you are one for hot-swapping your Hi-capa grips, congratulations on taking pure advantage of the modular nature of the platform! These grip screws from CowCow are designed to replace your old, worn-out grip screws so you can continue to swap and change to your heart's content!

14.49
  • Replacement grip screw x2
  • For TM Hi-capa 4.3/5.1
  • Stainless Steel construction

If you are one for hot-swapping your Hi-capa grips, congratulations on taking pure advantage of the modular nature of the platform! These grip screws from CowCow are designed to replace your old, worn-out grip screws so you can continue to swap and change to your heart's content!

18.99
  • Aluminium construction
  • Available in several colour options
  • Speed up your reloads!

If you are building a custom Hi-capa or 1911 GBB, whether it is for competition shooting or use as a primary pistol for skirmishing, a cocking lever can help speed up your reloads and get you back into the action faster! The CowCow Raw cocking handle is designed for the TM Hi-capa and 1911 GBB pistols and replaces your rear sight with a side-mounted cocking lever which can be installed for use by either left or right-handed users. This cocking handle is compatible with most TM clone GBB Hi-Capas but will only fit 1911s with a rear sight dovetail, not the classic style with the rear sight machined as part of the side.

16.49
  • Aluminium construction
  • Ambidextrous functionality
  • For TM EU17 Gen.4 and EU19 GBB pistols

Adding a cocking handle to your pistol might seem a bit much, but in the modern-day and age of primary pistols becoming more and more popular the pistol needs to give up some of its concealment characteristics to become more than "just" a sidearm and compete in the modern CQB site. The Tactical Cocking Handle from CowCow is an ideal solution, providing a protrusion on either side of the slide to allow the pistol to be cocked more quickly and easily, even allowing for one finger cocking from either side! This cocking lever adds a whole lot of functionality but is more compact than competition optimised designs, allowing it to still be used with most tactical holsters whilst reducing snags. This cocking lever replaces the back plate of the slide on your TM EU series pistol.

16.49
  • Aluminium construction
  • Ambidextrous functionality
  • For TM EU17 Gen.4 and EU19 GBB pistols

Adding a cocking handle to your pistol might seem a bit much, but in the modern-day and age of primary pistols becoming more and more popular the pistol needs to give up some of its concealment characteristics to become more than "just" a sidearm and compete in the modern CQB site. The Tactical Cocking Handle from CowCow is an ideal solution, providing a protrusion on either side of the slide to allow the pistol to be cocked more quickly and easily, even allowing for one finger cocking from either side! This cocking lever adds a whole lot of functionality but is more compact than competition optimised designs, allowing it to still be used with most tactical holsters whilst reducing snags. This cocking lever replaces the back plate of the slide on your TM EU series pistol.

15.49
  • Polymer construction
  • Complete nozzle set
  • For Action Army AAP-01 Assassin GBB Pistol

If you want your AAP-01 GBB to be running at its absolute best an enhanced nozzle would be a great choice to get the most out of this impressive platform. The CowCow Enhanced Plastic Nozzle Set includes an enhanced nozzle, nozzle valve, valve lock pin, valve spring and enhanced piston head, and when installed these parts should improve the shot to shot consistency, provide smoother cycling performance and improve the rate of fire of the AAP-01 Airsoft GBB.

11.99
  • Replacement Sear spring
  • Revised contact surfaces to reduce friction
  • For TM based Hi-capa/1911 GBB pistols

The CowCow Trident Sear spring is designed to replace your original sear spring, and features revised contact surfaces which have been narrowed to prevent excessive friction with other parts. If you are building a high speed Hi-capa or 1911, this is perfect for the job!

22.49
  • 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.

22.49
  • 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.

23.49
  • Replacement hammer
  • Alloy construction
  • Stainless Steel finish

An upgraded hammer is a great foundation to any upgraded AAP-01 build, especially if you are an HPA user! The CowCow SS Hammer is CNC machined from strengthened alloy with a stainless steel finish, and MAF polishing technology is applied to its exterior surfaces to reduce friction between parts and ensure smooth operation of the pistol.

11.99
  • Recoil buffer kit
  • Various spacers included
  • Speed up your Hi-capa or 1911!

The Competition Recoil Buffer Module from CowCow is designed to shorten the travel of the slide of your pistol, increasing its cyclic rate. The set includes 8 recoil buffer pads of varying hardness which can be stacked in various combinations to fine tune your pistol for optimum speed.

9.49
  • CNC 6061 Aluminium construction
  • Heat gradation finish
  • Short stroke your AAP-01 for more speed

Is your AAP-01 not fast enough? The CowCow Aluminium Buffer for AAP-01 is designed to satisfy even the most ravenous appetite for speed! This set includes two recoil rod spacers which are CNC machined from 6061 aluminium to provide a great balance between strength, precision and low weight. Adding one or two of the spacers to your guide rod will reduce the length of travel of the AAP-01 bolt and speed up the already impressive cyclic rate of the AAP-01 in both semi-auto and fully automatic fire.

About CowCow Technology

CowCow Tech is the go-to name for gas blowback pistol upgrade parts, producing some of the best upgrades on the market for the Hi-capa, AAP-01 and EU series GBB pistols. CowCow parts are usually CNC machined from aluminium or steel and are often finished in attractive colours to really give your pistol that customised aesthetic. If you need to add a touch of style to your sidearm, CowCow will almost certainly have something to suit you!

From internal upgrade parts such as short stroke kits and enhanced pistons to precisely machined high-speed external upgrades like slides, blowback housings and upgraded springs, CowCow has GBB upgrades thoroughly covered!