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14.49
  • Maximum Range HOP-up rubber
  • 50-Degree hardness - Ideal for 280-360 FPS
  • Compatible with TM based GBB & VSR platforms

The Maple Leaf MR HOP-up Bucking is widely regarded as the best HOP-up bucking offered by Maple Leaf, offering 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 and 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 intended to prioritise range over grouping size and the ideal pairing for the Maple Leaf I-Key. This bucking is compatible with Tokyo Marui-based GBB and VSR platforms, WE and VFC GBBRs and as always, we only recommend upgrade parts for those who are confident working on their platform's internals. If you want to extend your range out to the borderline implausible, the Maple Leaf MR.HOP HOP-up Bucking will do the trick!

14.49
  • Soft Bucking
  • Grippy Material
  • Air-Tight Design

A soft Hop Rubber for Marui compatible AEGs offering an air-tight design, which comes supplied with a nub and is a purple colour.

17.99
  • R-HOP Kit for AEGs
  • Includes bucking & nub
  • Extend range & improve accuracy

Whether you're building a DMR or simply want more range from your standard AEG, an R-HOP kit can make all the difference. Unlike other R-HOP kits on the market, the Trusight Tru-Hop Gen.3 is designed to be effectively a drop-in installation, with no need for adding patches of various sizes and includes both the HOP-up bucking and a concave HOP-up nub.

The set is designed to be widely compatible and should fit most Airsoft AEG spec inner barrels, though due to its enlarged contact patch, it will only work with inner barrels with a window measuring approximately 5mm in length x 1.7mm in depth. If you are happy to get stuck in with your AEG internals and you're looking for range and accuracy improvements, the Trusight Tru-Hop Gen.3 Hop-Up Rubber is what you need!

5.99
  • Hop Up Nub
  • Concaved Design
  • Improves Accuracy

The Maple Leaf Delayer OMEGA Nub is a HOP UP Rubber Nub For Airsoft Hop Up Units, it matches the shape of the BB to increase accuracy and overall performance of your airsoft gun. The nub gives more contact area to the BB and provides a precise amount of pressure around the BB instead of just on the top.

16.49
  • Stabilise Shots
  • Improves Air Seal
  • Reduce Power Loss

An upgrade hop bucking for Tokyo Marui and other compatible products. Designed for the Tokyo Marui VSR-10 bolt action and blow back pistols in mind including the Hi-Capa 4.3, Hi-Capa 5.1, M1911A1, SIG P226, SOCOM MK23 and G26. 

53.49
  • Rotary HOP-Up Adjuster
  • CNC Aluminium Construction
  • Includes flat & conventional HOP arms

If you're building your M4/AR-15 AEG to focus on range, accuracy and efficiency, the RetroArms CNC Rotary HOP-Up Chamber Gen.2 for M4/AR-15 AEG belongs in your build. This set is a full replacement rotary type HOP-Up unit for version 2 gearbox-equipped Airsoft M4/AR-15 platform AEGs and includes all of the parts you'll need to replace your stock HOP-up unit. The set also includes the choice of two HOP-up arms, one designed for flat HOP setups and one for conventional.

As with all internal upgrade parts, we only recommend this HOP-up unit for the technically proficient as it requires full assembly and does not include a HOP-up rubber or HOP-up nub. That said, the RetroArms CNC Rotary HOP-Up Chamber Gen.2 for M4/AR-15 AEG is widely regarded as one of the best options out there for the pros, and when set up properly, it has the potential to outrange anything else on site!

8.49
  • R-HOP Kit - Improves accuracy
  • Includes bucking, HOP arm & nub
  • Ideal for any accurised AEG build

If you're looking for accuracy improvements for your M4/AR-15 AEG, the Delta Armory TRINITY R-Hop Bucking Bundle for AEG is what you need to tighten your groupings. This set includes an enhanced HOP-up arm, HOP-up bucking and OMEGA-style nub manufactured for Delta by upgrade legends Psionic Upgrades. The included HOP-up arm is designed for M4/AR-15 AEG rotary HOP-up units, specifically the Delta Armory/Specna Arms/Evolution/Lancer Tactical type but the bucking and nub are compatible with other Airsoft AEGs of all different shapes and sizes. 

The inner patch of the TRINITY bucking is diamond-shaped, similar to the Maple Leaf Super bucking, intended to improve accuracy by applying backspin more consistently. The advantage of using a TRINITY set rather than doing all the mods yourself is its simple drop-in installation, low price compared to sourcing a separate bucking, nub and HOP-up arm and guaranteed compatibility, meaning no chance your nub doesn't work with your chosen bucking. If you're looking for tighter groupings from your Airsoft AEG, the TRINITY R-HOP Bucking Bundle is the one to go for!

9.49
  • Wide Flat Patch
  • 50 Degees Of Hardness
  • For Marui Style AEG Barrels

A high quality 50 Degree silicone hop rubber designed to replace the current hop rubber in you weapon. This particular hop rubber is made to be compatible with all standard AEG type barrels and hop units.

5.99
  • R-HOP Kit - Great for heavy BBs
  • Includes bucking, HOP arm & nub
  • Ideal for AEG DMR builds

If you're building a DMR or accurised AEG, the Delta Armory BERSERKER R-Hop Bucking Bundle for AEG is what you need to achieve maximum range. This set includes an enhanced HOP-up arm, HOP-up bucking and OMEGA-style nub manufactured for Delta by upgrade legends Psionic Upgrades. The included HOP-up arm is designed for M4/AR-15 AEG rotary HOP-up units, specifically the Delta Armory/Specna Arms/Evolution/Lancer Tactical type but the bucking and nub are compatible with other Airsoft AEGs of all different shapes and sizes. 

The inner patch of the BERSERKER bucking is shaped to fill the HOP-up window on your barrel, just like home-brewed R-HOP setups of old. The advantage of using a BERSERKER set rather than doing all the mods yourself is its simple drop-in installation, low price compared to sourcing a separate bucking, nub and HOP-up arm and guaranteed compatibility, meaning no chance your nub doesn't work with your chosen bucking. If you use heavy BBs and need a range increase, this set will do exactly that!

7.49
  • Flat HOP-up nub
  • Compatible with most Airsoft AEGs and GBBs
  • Extend your range and improve accuracy!

If you are looking for better accuracy and range, a flat HOP-up nub should do it! The Hades Airsoft Flat HOP-up nub is designed to apply a stronger HOP-up effect than standard cylindrical nubs and is available in 4mm or 5mm lengths.

The nub is constructed from 3D-printed synthetic rubber and maintains its shape regardless of any pressure applied, guaranteeing even pressure is applied across the nub and transferred to your BB without distortion. An additional advantage of using a harder synthetic rubber than the average is that performance will remain constant, even in lower temperatures.

As with other flat HOP-up modifications, this part is only recommended for those who are experienced working on HOP-ups and we suggest that you measure the window size of your inner barrel to ensure you get the correct size for your build.

76.99
  • For TM / KJ Works
  • Pre-Built Hop-Up
  • Drop in kit

A pre-built drop in hop-up unit and barrel set up built by Maple Leaf with their best parts already included in it. The kit can be dropped into any Tokyo Marui / KJ Works M1911 / MEU Series gas blowback Airsoft pistol for instant results. The set includes an alloy Hop-Up unit, 60 Degree hop-up rubber and Crazy Jet Inner barrel for high performance and improved accuracy. This is perfect for those who are looking to upgrade their pistol with minimum effort.

88.99
  • 70° HOP Bucking
  • For Hi-Capa Pistols
  • 6.02mm Inner Barrel

An aftermarket upgrade/replacement Inner Barrel and HOP Unit/Rubber for Hi-Capa Series Airsoft Pistols, specifically the Army Armament R601. This awesome package provides you with a Precision 6.02mm Inner Barrel, as well as a HOP Chamber, ML 70° Bucking and 'I-Key Delayer', to improve range, accuracy and precision.

The installation of this unit is relatively straightforward, and will be compatible with beginner/experienced techs.

7.49
  • Includes Bucking
  • For Cold Weather
  • For Marui Style AEG

Will fit almost all Airsoft AEG on the market. The rubber is made from Silicon and features a 50 Degree Nub, applying a moderate amount of hop to BBs. 

9.49
  • PTS MEC Enhanced internal series
  • 2x Enhanced HOP rubbers/buckings
  • Two contact surfaces for improved consistency

The MEC HOP rubber/bucking is precision moulded and has a slightly narrower inner diameter at the entrance and extra coverage for the top of the barrel cut area for a vastly improved air seal. This HOP rubber provides two points of contact with the bb with equal pressure on either side, improving effective range and consistency.

94.99
  • Extremely Stable
  • CNC Hop-Up Unit
  • Precision Adjustment

A highquality replacement Hop-Up unit designed and created by Action Army to fit TM Spec VSR / BAR-10 Airsoft Bolt Action Sniper Rifles, to enhance and perfect the performance of the weapon.

10.99
  • Set of two MEC rubbers
  • 60 & 70 Degree rubbers included
  • Compatible with most Airsoft AEGs

If you seek more accuracy and range from your AEG, a HOP-up upgrade is the first place to start! The PTS Syndicate MEC HOP-Up Bucking for AEGs; Twin Pack includes a black HOP-up rubber and a purple one, equipped with a bridge-style contact patch to minimise side-to-side deviation and maximise accuracy. 

The black HOP-up rubber is designed for 295-360 FPS builds, being made from 60-degree hardness rubber and the purple 70-degree rubber is intended for high FPS DMR builds hitting out at 360-460 FPS on a 0.2g BB. If you're the techy type with a build on the go at all times, the PTS MEC HOP-Up Bucking for AEGs; Twin Pack is a great set to have in the toolbox!

29.99
  • Upgraded HOP-up chamber set
  • Alloy construction w/steel HOP-up arm & alu tensioner
  • Compatible with most EU-series GBB pistols

If you want your sidearm to be capable of really reaching out, a HOP-up upgrade should be top of your list! The Maple Leaf HOP-up Chamber for VFC/WE/TM EU-Series GBB is constructed from alloy and supplied with a steel HOP-up arm and aluminium "I-key" style tensioner, promising tighter tolerances than the stock HOP-up unit which should translate to better air seal qualities, consistency and thus better accuracy downrange.

This set is compatible with VFC, WE and Tokyo Marui EU-series GBB pistols but should also fit most Tokyo Marui clone EU-series pistols, though as always, we recommend upgrade parts only for the knowledgeable and confident!

9.49
  • Replacement original part
  • For Novritsch SSP1 & SSP5
  • VSR/GBB Spec HOP-up rubber

Whether your HOP-up rubber is worn out or you are seeking an upgrade, the Novritsch HOP-up Bucking for SSP1/SSP5 GBB pistol is one to keep an eye on. This HOP-up bucking is a big reason that Novritsch pistols have such incredible range, and being a VSR/GBB style HOP-up rubber, this should be compatible with most TM-based GBB pistol designs as well as the VSR-10 sniper rifle series.

9.49
  • Silicone construction
  • Various "hardnesses" available
  • Wide "flat HOP" contact patch

The Maple Leaf Autobot HOP-up rubber has gained a reputation as one of the best upgrade components if you want to extend the range and improve the accuracy of a TM based GBB pistol, VSR/bar-10 sniper rifle, or GBBR with TM GBB HOP-up bucking compatibility. The Autobot has a wide and flat contact patch to help stabilise your BB in flight and extend your range. This bucking is also designed to ensure your BB is chambered consistently with every shot, guaranteeing impressive accuracy when compared to standard HOP-up buckings. This is the latest variant of the Autobot and is constructed from silicone instead of standard rubber, offering greater resistance to temperature changes.

17.99
  • TDC HOP-up mod set
  • Requires extensive modification
  • For VSR-10 & VSR-10 clone sniper rifles

If you want to push your VSR-10-based sniper rifle to the absolute pinnacle of accuracy, a TDC mod should do the trick! The Hades Airsoft TDC HOP-up Unit Set for VSR-10 Sniper Rifle is designed to replace the original HOP-up arm and adjuster, providing direct pressure to the top of the HOP-up nub and bucking to eliminate side-to-side shot deviation.

Installing this TDC unit will require some extensive, irreversible modifications to your base sniper rifle, so we only recommend this set for those who are confident with power tools and have a decent level of Airsoft technical knowledge.

The unit requires you to drill a hole through the top of your outer barrel using either a 5mm or 5.5mm drill bit and the included drill guide, inserting the guide into the stripped outer barrel to ensure the hole is drilled in the right place. Hades also recommends that when the modification is complete, that you glue the TDC unit to your outer barrel using super glue or another strong adhesive.

If you are the type of sniper that likes to get their hands dirty with modifications and you want your VSR to outrange and outshoot the rest, this kit will do it!

4.99
  • Polymer construction
  • For CM.041K and CM.041PDW
  • Replacement original CYMA part

If you have damaged your HOP-up unit and are looking for a replacement, CYMA are now offering their original HOP-up units as an aftermarket part. This unit is for the CM.041K and CM.041PDW AEGs, but will not fit the full sized CM.041 AEGs. The unit is constructed from polymer and comes complete other than the HOP-up rubber. The HOP unit, slider, c-clip and HOP nub are all included, so if you have lost or damaged one of these bits you are in luck!

11.99
  • Enlarged contact surface
  • Bridge style - Great for accuracy
  • Fits most Airsoft AEG HOP-up units

If you seek more accuracy and range from your AEG, the Prometheus Bridge HOP-up Tensioner for AEGs will help you achieve it! Supplied as a pack of two tensioners, these are the "Bridge" style design with a central groove designed to reduce side-to-side deviation, focussing on maximum accuracy and providing the smallest grouping possible. The contact surface provided by this HOP-up nub (another word for tensioner) is far larger than the standard, resulting in a stronger backspin effect and extended range with heavy-weight BBs. 

The two tensioners included in the set are of different colours; one purple and one black. The purple tensioner is made from softer rubber, designed for sub-350 FPS builds and the black one is slightly harder, ideal for 350 FPS and above, making it the perfect tensioner for an AEG DMR. Compatibility-wise, these tensioners should fit almost any Airsoft AEG HOP-up unit but as always is the case with internal upgrades, we only recommend these for experienced techs and those who know their way around AEG internals. If accuracy and range is your objective, the Prometheus Bridge HOP-up Tensioner for AEGs belongs in your build!

15.29
Was 17.99
Save 2.70
  • Increases Accuracy
  • Works with Heavier BB's
  • Compatible with Master Mod Barrels


Master Mods are a new Internal Parts manufacturer bringing a whole new meaning to the term reliable. The Master Mods R-Hop Contact rubber is a hardened contact for use with heavier weight BB's, increasing accuracy & performance.

17.99
  • Shorter Than Standard
  • For VSR-10 & M28 rifles
  • 2 Hop Rubbers Per Pack

Next level of Airsoft sniper rifle hop-up rubber produced with similar materials and processes to Madbull's current line up of AEG hop-up components. 

64.99
  • 7075 aluminium design
  • TDC adjustment system
  • For TM hi-capa GBB pistols

This TDC hop up chamber from TTI is made from CNC aluminium, it is made for Hi-Capa GBB handgun replicas from Tokyo Marui / WE. This hop-up chamber has a TDC adjustment system operated via a notched wheel at the bottom of the chamber.

10.99
  • Complete Kit 
  • Factory OEM Part
  • Masada AEG Specific

An original hop unit only (no gears or adjsuters) for the PTS Masada AEG, this is a high quality manufactured replacement piece.

28.47
Was 33.49
Save 5.02
  • CNC Machined
  • Consistent Pressure
  • Anodised Aluminium

A CNC machined Aluminium Hop Arm / Pressure Plate for the Modify MOD24 Bolt Action Sniper Rifle.

53.49
  • CNC Aluminium & POM construction
  • Various O-rings included
  • Rotary style adjuster - M4/AR15 AEG & HPA compatible

If you are building out your M4/AR15 AEG for maximum performance the Gate EON HOP-up unit is probably already on your list! This precise HOP-up unit is constructed from CNC machined aluminium and is a rotary style unit which applies pressure directly to the top of the HOP-up rubber/nub to minimise side-to-side deviation.

This unit is compatible with M4/AR15 AEGs and can also be used with HPA setups thanks to the included nozzle sleeve which perfectly centres the nozzle for maximum efficiency.

53.49
  • CNC Aluminium & POM construction
  • Various O-rings included
  • Rotary style adjuster - M4/AR15 AEG & HPA compatible

If you are building out your M4/AR15 AEG for maximum performance the Gate EON HOP-up unit is probably already on your list! This precise HOP-up unit is constructed from CNC machined aluminium and is a rotary style unit which applies pressure directly to the top of the HOP-up rubber/nub to minimise side-to-side deviation.

This unit is compatible with M4/AR15 AEGs and can also be used with HPA setups thanks to the included nozzle sleeve which perfectly centres the nozzle for maximum efficiency.

53.49
  • CNC Aluminium & POM construction
  • Various O-rings included
  • Rotary style adjuster - M4/AR15 AEG & HPA compatible

If you are building out your M4/AR15 AEG for maximum performance the Gate EON HOP-up unit is probably already on your list! This precise HOP-up unit is constructed from CNC machined aluminium and is a rotary style unit which applies pressure directly to the top of the HOP-up rubber/nub to minimise side-to-side deviation.

This unit is compatible with M4/AR15 AEGs and can also be used with HPA setups thanks to the included nozzle sleeve which perfectly centres the nozzle for maximum efficiency.

About Our Airsoft Hop Up Units & Buckings

Looking to upgrade your Airsoft gun to attain maximum range? Our Airsoft hop-ups and buckings transform your replica’s backspin to give you the trajectory you’ve been dreaming of. 

We have a range of brands and designs to choose from. From Maple Leaf buckings to Modify rubber hop-ups, you can equip yourself with the right attachment for a clean, straight shot every time. So get ready to take out your enemies from afar with incredible accuracy from our Maple Leaf bucking, and explore options for all weather conditions. 

Maple Leaf buckings are ideal for modifying your rifle, thanks to their concave contact surface to increase backspin. For spare airsoft hop-ups to maintain your piece, you’ll find units with varied hardness levels, air seals and bucking contact. To learn more, check out our handy Airsoft Hop Up Bucking Guide.

We stock options for all types of weapons too, including Airsoft M4 hop-up units, as well as offering some of the best names in the field such as G&G Armament, Guarder Airsoft and ASG. You’ll find a range of accessories and attachments to improve the precision of your shots too, like holographic, reflex and red dot sights.