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£3.99
  • Spring steel construction
  • Replacement original part
  • For KRYTAC Maxim 9 GBB Pistol

If you're experiencing sluggish performance from your Maxim 9, this should sort it! The KRYTAC Hammer Spring for SilencerCo Maxim 9 GBB Pistol is a replacement original part, ideal for spares and repairs.

This spring is made from spring steel and is responsible for dropping the internal hammer to hit the valve knocker and release gas from the magazine. If you're experiencing "light striking" issues, this may be the key to sorting it!

£4.99
  • Spring steel construction
  • Replacement original part
  • For KRYTAC Maxim 9 GBB pistol

If you're experiencing sluggish cycling from your Maxim 9, this may cure it! The KRYTAC Nozzle Return Spring for SilencerCo Maxim 9 GBB is an original replacement part made from spring steel. The nozzle spring is responsible for returning the nozzle to battery during the blowback cycle, and is a great spare part to have in the stash just in case.

£6.99
  • Steel construction
  • Replacement original part
  • For KRYTAC Maxim 9 GBB Pistol

Repairing your Maxim 9? The KRYTAC Hammer Sear for SilencerCo Maxim 9 GBB will come in handy! An original replacement part made from steel, the Hammer Sear is a high-wear component, a good one to have in the toolbox just in case!

£6.99
  • Steel construction
  • Replacement original part
  • For KRYTAC Maxim 9 GBB pistol

If you're experiencing consistency issues with your Maxim 9, a fresh valve knocker may be the solution! The KRYTAC Valve Knocker for SilencerCo Maxim 9 GBB is a replacement original part made from steel. The valve knocker is the piece which hits the magazine valve to release gas, so if you're experiencing inconsistent cycling, this part may solve it.

£6.99
  • Rubber construction
  • Replacement original part
  • For KRYTAC Maxim 9 GBB Pistol

If you're experiencing sluggish cycling or gas efficiency issues with your Maxim 9, this may cure it! The KRYTAC Piston Head for SilencerCo Maxim 9 GBB is a replacement original part, responsible for sealing the rear of the blowback unit/nozzle to cycle the slide. If your Maxim 9 has spent some time without lubrication, this part will most likely need replacing. A good spare to have in the parts bin for a worst-case scenario!

£6.99
  • Rubber construction
  • Replacement original part
  • For Maxim 9 GBB/CO2 magazines

Whether you're experiencing a leak from the top of your Maxim 9 mag or you want to freshen it up to improve gas efficiency, the KRYTAC Gas Route Bucking for SilencerCo Maxim 9 GBB Magazine is a useful spare to have in the stash. Made from rubber, this original KRYTAC part seals the magazine to the blowback unit/nozzle assembly and is installed on the top of the magazine.

£11.99
  • GBB/VSR-Style HOP-up rubber
  • Replacement original parts
  • For KRYTAC Maxim 9 & KRISS® Vector GBB

If you're experiencing range and accuracy issues with your KRISS Vector or Maxim 9, this replacement original part will have it shooting as good as new! The KRYTAC HOP-up Bucking for KRISS® Vector/Maxim 9 GBB is designed for the KRYTAC Maxim 9 and KRISS Vector GBBs but should also work in other VSR/GBB bucking-compatible platforms.

£14.99
  • High-density polymer build
  • Replacement original part
  • For KRYTAC Maxim 9 GBB pistol

If you're running the stunning KRYTAC Maxim 9, keep one of these handy for a worst-case scenario. The KRYTAC Loading Nozzle/BBU for SilencerCo Maxim 9 GBB Pistol is a replacement original part made from high-density polymer.

The Loading Nozzle/Blowback Unit is the part which loads BBs from your magazine into the HOP-up unit and is also responsible for directing gas to shoot and cycle the slide. Whether your Maxim 9 no longer feeds or you want to keep it running for eternity, this part is essential to have in the stash!

£14.99
  • Alloy construction
  • Replacement original part
  • For KRYTAC Maxim 9 GBB Pistols

If you're seeking parts to freshen up your Maxim 9, this will be useful! The KRYTAC Blowback Housing for SilencerCo Maxim 9 GBB Pistol is a replacement original part designed for KRYTAC's SilencerCo Maxim 9, made from alloy.

This part houses the nozzle/blowback unit, nozzle spring and piston head, and is installed inside the slide. It also helps guide the hammer group parts and racks the hammer back as the pistol cycles. If your Maxim 9 has become a runaway gun (it only shoots full auto until the mag is empty), this may cure it!

£7.99
  • Replacement O-ring set
  • For Airsoft gas magazines
  • Fix up your old leaky mags!

If you have a pile of leaky mags, now is the time to fix them up! The WADSN Gas Magazine O-ring Repair Set includes 10 O-rings of 7 different sizes, designed to replace the O-rings of the knocker valve and fill valve in most Airsoft gas magazines. The set is supplied in a clear polymer organiser case to keep everything neat and includes a set of polymer installation tweezers to make installation without damaging the O-rings considerably easier. If you have a lot of leaky mags gathering dust, this set is the key to giving them a new lease of life!

£3.99
  • Replacement magazine fill valve
  • For GBB magazines
  • Includes an O-ring

If you have a magazine which leaks from the fill valve, or your mag is a bit old and the valve has taken a hammering over the years, a replacement valve is the way to go. This Specna Arms valve replaces the fill valve in your magazine with a nice fresh one, complete with an O-ring to ensure there are no leaks! This valve will require a valve key to install.

£11.99
  • Shield-shaped contact patch
  • Flat/R HOP style Rubber
  • For GBB & VSR-10 Unbridged barrels

If you're seeking maximum HOP-up performance and are committed to using heavy BBs, the Maple Leaf 2023 MR HOP Bucking for VSR/GBB belongs in your build. The MR HOP-up Bucking offers a wider and longer “R-HOP” style contact patch for increased HOP-up effect and extended range with heavy BBs. The MR HOP also uses a shield-shaped groove around the contact patch to allow it to stretch and add to the strong HOP-up effect along with an air seal improving C-ring which ensures the bucking is firmly fitted to the barrel and unable to slip or rotate.

MR stands for “Maximum Range”, a design based on home-brewed R-HOP buckings, intended to prioritise range over grouping size and is best used paired with a Maple Leaf OMEGA or OHM HOP-up nub. Compatibility-wise, this version of the MR HOP is designed for unbridged VSR-10 and GBB pistol inner barrels but as always, a certain amount of expertise and tuning may be required to install it, though it will be far less work than the R-HOPs of old!

£6.99
  • Nozzle & nozzle spring
  • Various power levels available
  • Compatible with VMP-2D & VMP-2MD

If you're running the VMP-2D or VMP-2MD and want to tune muzzle energy, the VORSK Replacement Nozzle for VMP-2D & VMP-2MD is what you need! Available in a range of power levels, including 300 FPS, 330 FPS, 430 FPS and 450 FPS, these nozzles are colour coded so you can tune to perfection without the confusion.

While these nozzles are compatible with all VMP-2 variants, the stated power level only applies to the VMP-2MD and VMP-2D barrel lengths. Muzzle energy will be slightly higher with longer barrel lengths and slightly lower with shorter barrel lengths, so please keep this in mind. The nozzle spring is also pre-installed in each nozzle to make installation that bit easier. If you're the type to take full advantage of your VMP-2's modularity, the VORSK Replacement Nozzle for VMP-2D & VMP-2MD was made with you in mind!

£6.99
  • Nozzle & nozzle spring
  • Various power levels available
  • Compatible with VMP-2D & VMP-2MD

If you're running the VMP-2D or VMP-2MD and want to tune muzzle energy, the VORSK Replacement Nozzle for VMP-2D & VMP-2MD is what you need! Available in a range of power levels, including 300 FPS, 330 FPS, 430 FPS and 450 FPS, these nozzles are colour coded so you can tune to perfection without the confusion.

While these nozzles are compatible with all VMP-2 variants, the stated power level only applies to the VMP-2MD and VMP-2D barrel lengths. Muzzle energy will be slightly higher with longer barrel lengths and slightly lower with shorter barrel lengths, so please keep this in mind. The nozzle spring is also pre-installed in each nozzle to make installation that bit easier. If you're the type to take full advantage of your VMP-2's modularity, the VORSK Replacement Nozzle for VMP-2D & VMP-2MD was made with you in mind!

£8.99
  • Nozzle & nozzle spring
  • Various power levels available
  • Compatible with VMP-2D & VMP-2MD

If you're running the VMP-2D or VMP-2MD and want to tune muzzle energy, the VORSK Replacement Nozzle for VMP-2D & VMP-2MD is what you need! Available in a range of power levels, including 300 FPS, 330 FPS, 430 FPS and 450 FPS, these nozzles are colour coded so you can tune to perfection without the confusion.

While these nozzles are compatible with all VMP-2 variants, the stated power level only applies to the VMP-2MD and VMP-2D barrel lengths. Muzzle energy will be slightly higher with longer barrel lengths and slightly lower with shorter barrel lengths, so please keep this in mind. The nozzle spring is also pre-installed in each nozzle to make installation that bit easier. If you're the type to take full advantage of your VMP-2's modularity, the VORSK Replacement Nozzle for VMP-2D & VMP-2MD was made with you in mind!

£8.99
  • Nozzle & nozzle spring
  • Various power levels available
  • Compatible with VMP-2D & VMP-2MD

If you're running the VMP-2D or VMP-2MD and want to tune muzzle energy, the VORSK Replacement Nozzle for VMP-2D & VMP-2MD is what you need! Available in a range of power levels, including 300 FPS, 330 FPS, 430 FPS and 450 FPS, these nozzles are colour coded so you can tune to perfection without the confusion.

While these nozzles are compatible with all VMP-2 variants, the stated power level only applies to the VMP-2MD and VMP-2D barrel lengths. Muzzle energy will be slightly higher with longer barrel lengths and slightly lower with shorter barrel lengths, so please keep this in mind. The nozzle spring is also pre-installed in each nozzle to make installation that bit easier. If you're the type to take full advantage of your VMP-2's modularity, the VORSK Replacement Nozzle for VMP-2D & VMP-2MD was made with you in mind!

£10.99
  • Brass with Rubber O-rings
  • Replacement original parts
  • For Army Armament Hi-capa & 1911 GBB

The Army Armament Green Gas Valve Kit for AA Hi-capa & 1911 GBB is what you need if your magazine leaks from the fill valve or knocker valve. The set includes replacements for both, complete with pre-installed rubber O-rings.

This set should be suitable for most Hi-capa and 1911 GBB pistol magazines but is specifically designed for Army Armament R26, R27, R28, R29, R31, R32, R45, R501, R601, R603 & R604 magazines. We recommend a valve key for easy installation. Breath new life into your pistol or save money fixing an old mag instead of replacing it!

£6.99
  • Nozzle & nozzle spring
  • Various power levels available
  • Compatible with VMP-2M GBBR

If you're running the VMP-2M and want to tune it to DMR power levels, the VORSK Replacement Nozzle for VMP-2M is what you need! Available in a range of power levels, including 300 FPS, 330 FPS, 430 FPS and 450 FPS, these nozzles are colour coded so you can tune to perfection without the confusion.

While these nozzles are compatible with all VMP-2 variants, the stated power level only applies to the VMP-2M barrel length. Muzzle energy will be slightly higher with longer barrel lengths, so please keep this in mind. The nozzle spring is also pre-installed in each nozzle to make installation that bit easier. If you're the type to take full advantage of your VMP-2's modularity, the VORSK Replacement Nozzle for VMP-2M was made with you in mind!

£6.99
  • Nozzle & nozzle spring
  • Various power levels available
  • Compatible with VMP-2M GBBR

If you're running the VMP-2M and want to tune it to DMR power levels, the VORSK Replacement Nozzle for VMP-2M is what you need! Available in a range of power levels, including 300 FPS, 330 FPS, 430 FPS and 450 FPS, these nozzles are colour coded so you can tune to perfection without the confusion.

While these nozzles are compatible with all VMP-2 variants, the stated power level only applies to the VMP-2M barrel length. Muzzle energy will be slightly higher with longer barrel lengths, so please keep this in mind. The nozzle spring is also pre-installed in each nozzle to make installation that bit easier. If you're the type to take full advantage of your VMP-2's modularity, the VORSK Replacement Nozzle for VMP-2M was made with you in mind!

£8.99
  • Nozzle & nozzle spring
  • Various power levels available
  • Compatible with VMP-2M GBBR

If you're running the VMP-2M and want to tune it to DMR power levels, the VORSK Replacement Nozzle for VMP-2M is what you need! Available in a range of power levels, including 300 FPS, 330 FPS, 430 FPS and 450 FPS, these nozzles are colour coded so you can tune to perfection without the confusion.

While these nozzles are compatible with all VMP-2 variants, the stated power level only applies to the VMP-2M barrel length. Muzzle energy will be slightly higher with longer barrel lengths, so please keep this in mind. The nozzle spring is also pre-installed in each nozzle to make installation that bit easier. If you're the type to take full advantage of your VMP-2's modularity, the VORSK Replacement Nozzle for VMP-2M was made with you in mind!

£8.99
  • Nozzle & nozzle spring
  • Various power levels available
  • Compatible with VMP-2M GBBR

If you're running the VMP-2M and want to tune it to DMR power levels, the VORSK Replacement Nozzle for VMP-2M is what you need! Available in a range of power levels, including 300 FPS, 330 FPS, 430 FPS and 450 FPS, these nozzles are colour coded so you can tune to perfection without the confusion.

While these nozzles are compatible with all VMP-2 variants, the stated power level only applies to the VMP-2M barrel length. Muzzle energy will be slightly higher with longer barrel lengths, so please keep this in mind. The nozzle spring is also pre-installed in each nozzle to make installation that bit easier. If you're the type to take full advantage of your VMP-2's modularity, the VORSK Replacement Nozzle for VMP-2M was made with you in mind!

£6.99
  • Polymer construction
  • Replacement Hi-capa feed lips
  • Fix up your old magazines

If you have dropped a mag mid game you probably have a set of broken feed lips, but fear not! The Army Armament Magazine Feed Lips for Hi-capa GBB is designed to replace the original feed lips of AA Hi-capa magazines whether they are cracked from an accidental drop or just getting a bit worn out.

£6.99
  • Replacement hammer and hammer strut
  • For R601 JW3 GBB Pistol
  • Alloy and steel construction

This hammer is an original replacement part for the Army Armament R601 JW3 GBB pistol but may also fit other Army Armaments Hi-capa based GBB pistols. A hammer is a great spare to have in the tool kit if you use your JW3 pistol heavily, as over time these tend to wear out due to the repeated impacts on the hammer with every shot. Having a spare hammer on hand for worst-case scenarios can help avoid disappointment and potentially a long wait for replacement parts and allow you to have your pistol back up and running quickly for its next outing.

£1.99
  • Baseplate seal
  • Reduces Leaking
  • Improves Gas Seal

A silicone rubber seal designed to fit on the bottom of your Hi Capa magazine internally, to replace old and work out seals and reduce leaks. With a properly fit and lubricated seal you should never experience a leak again, just ensure you coat the seal in silicone based lubricant prior to fitting it, and be gentle! These things may snap under too much tension.

£1.99
  • Spring steel construction
  • Replacement original part
  • For KJ Works B9/B92 GBB Pistols

If your KJ Works B9/92 has trigger issues, this might be the key to getting it running again. The KJ Works Trigger Spring for B9/92 GBB Pistol is a replacement original part for the KJ Works B9 and B92 GBB pistol series and is constructed from spring steel. This is the spring that resets the trigger, so if your trigger gets stuck back after one shot this might solve your issue!

£49.99
  • CNC Aluminium
  • Ambidextrous design
  • For Tokyo Marui MWS platforms

If you need a stylish ambidextrous function for your GBBR rifle, you need the EMG Noveske "Super Badass" Charging Handle for TM MWS! This external part is constructed from CNC Aluminium, making it lightweight, durable and precisely machined. This is perfect for those who like realism, as it really does look like the real thing!

It is compatible with Tokyo Marui MWS systems and some clones of that system, including the Double Eagle system, which many GBBR EMG Noveske platforms are manufactured by. It has an ambidextrous function, making it perfect for anybody's shooting style.

If you need some subtle aggressive styling for your GBBR, the EMG Noveske "Super Badass" Charging Handle is perfect for you!

£129.99
  • CNC 7075 Aluminium construction
  • Adjustable valve - Tune FPS to the limit!
  • For TM ZET System M4 MWS & CGS M4 GBBRs

Whether you need to tune FPS or seek a more robust, reliable build, the CYMA CGS CNC Aluminium Nozzle Set w/Adjustable Valve for CGS/TM GBBR is a great buy for any TM ZET System M4 or CGS M4 GBBR owner. This nozzle is made from CNC machined 7075 aluminium, making it incredibly strong and well up to a hard life of hard recoil!

The set includes an adjustable NPAS-style valve and a non-adjustable valve, giving you the option to stay versatile with adjustable FPS or stick to a fixed valve for better consistency. Compatibility-wise, this nozzle set is designed for the CYMA CGS M4 GBBR series and is confirmed to fit the Tokyo Marui M4 ZET System GBBR series, and while it should work, we are unable to confirm compatibility with Double Eagle ZET System clones. We can say for certain this won't work in a WE or Golden Eagle GBBR.

If you want to use your GBBR in CQB one day and as a DMR the next, the CYMA CGS CNC Aluminium Nozzle Set w/Adjustable Valve for CGS/TM GBBR is the part you need to make that happen. Far stronger than polymer nozzles and precisely made with CNC machining, if you want to keep your GBBR recoiling hard in the long run, this part is ideal!

£8.99
  • Gas route bucking set
  • Set of 5  - 70 Degrees hardness rubber
  • For CYMA CGS, Double Eagle & TM ZET system M4 GBBR mags

If you've got leaky M4 ZET system mags, these could help fix them up! The CYMA CGS Enhanced M4 ZET System Gas Route Bucking 70 Degrees - Set includes 5 gas route buckings/seals for TM ZET system M4 GBBR magazines constructed from 70-degree hardness rubber for temperature resistance and improvements in strength.

Not only a handy spare to have on hand for anyone with TM ZET system M4 magazines, these gas route buckings can also help improve gas efficiency by reducing gas leakage between the magazine and nozzle, especially if you've installed a CGS nozzle or bolt carrier group into your TM. The CGS Enhanced M4 ZET System Gas Route Bucking is compatible with Tokyo Marui and CYMA CGS M4 magazines and should also fit the Double Eagle M4 ZET system magazines.

£19.49
  • Steel construction
  • Mount a PT-1 or PT3 stock
  • For LCT, GHK & CYMA Side folding AKs

Does your AK need a touch of style? Add the 5KU PT-1/3 Stock Adapter for LCT/GHK/CYMA Side Folding AK Receiver and you're halfway there! This adapter allows Zenitco PT-1 or PT-3 multi-adjustable stocks to be mounted to an LCT, GHK or CYMA side folding AK receiver and should also work with most PT-1 and PT-3 clones. Made from robust steel to guarantee it will never fail, the PT-1/3 Stock Adapter from 5KU is the first step to styling up your side folder AK!


£12.99
  • VSR and GBBR compatible
  • Improved range and accuracy
  • Works with heavyweight BBs

If you are rocking the TruSight Airsoft TDC Conversion Kit for VSR-10 and need the perfect HOP-rubber to match. This hard rubber provides a laser-like trajectory with maximum range and precision. It can hop up to 0.5g BBs, and with its optimised geometry, it ensures tight groupings.

This rubber is made from high-strength, wear-resistant material and is built to withstand high FPS setups without compromising performance. It is the perfect rubber to turn your GBBR into a DMR or get the ultimate performance out of your VSR-based sniper rifle.

About Our All Gas Blowback Parts

Stock up on vital accessories and upgrade your weapon ahead of a skirmish with our range of gas blowback parts. From feed lips to HOP Rubbers, O-Rings, hammers, complete spares kits and many more, you’ll find it all at Patrol Base.

Ideal for a range of airsoft gun designs, our airsoft gas gun parts are compatible with green gas pistols and CO2 pistols alike, as well as our gas shotguns and beyond.

Don’t stop there; explore our entire collection of airsoft upgrades and create your dream personalised airsoft replica, from electric internal parts to inner barrels and AEG springs.

Our airsoft experts are also on hand to provide support with your technical modifications, simply get in touch with our team today.