Airsoft Hop Up Units & Buckings

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

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!

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.

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. 

A set of pre-made R-HOP patches designed to take the stress out of r-hopping your hop-up unit. These patches are replacements for existing hop-up rubber, and are designed to be glued into the window on the barrel rather than sliding over it. This modification is for advanced Airsoft tech, and requires existing r-hop knowledge or experience.

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.

If you have HOP-up woes with your SMG-5 this could be what you need to fix it up! The CYMA HOP-Up Chamber with Rubber and Nub for SMG-5 AEG is a replacement original part for the CM.027 SMG-5 series but should also work in any TM based SMG-5 AEG (not NGRS variants). The set includes a complete HOP-up unit with the HOP-up arm and also includes a basic HOP-up rubber and nub, giving you everything you need to replace the entire unit in a single package. 

This set is designed for the CM.027 which is a copy of the Tokyo Marui SMG-5 AEG and should also work with similar designs but is not compatible with the Classic Army SMG-5 or the later CYMA CM.041 series SMG-5 AEGs. 

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.

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.

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.

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.

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!

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.

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!

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!

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!

If you want to upgrade your Umarex Glock and build a sleeper of a long ranged pistol setup, this is the HOP-up unit you need! The Maple Leaf HOP-Up Chamber for Umarex/VFC Glock is compatible with the Umarex/VFC Glock 17, Glock 19, Glock 19X and Glock 45 GBB pistols and is constructed from alloy for improved strength. The unit is supplied with two HOP-up arms with one pre-installed, giving you a spare to keep handy or modify for some experimental HOP-up setups. 

The tolerances of this unit are far more precise than the original, offering better air seal and gas efficiency, translating into better effect on target and better consistency. If you want to shock the enemy by landing a hit with your pistol at long range, the Maple Leaf HOP-Up Chamber for Umarex/VFC Glock is the key!

An absolute monster of an upgrade to make to your weapon. The external surface is ribbed to keep your inner barrel more stable inside your hop up unit with next to no play at all after you have fully re-assembled your Airsoft weapon.

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. 

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.

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. 

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!

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.

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

The NexxSpeed hop unit is the closest thing to a true Top Down Centre (TDC) hopup.

Machined from aluminium and cut with precise CNC tolerances giving you a great seal for your nozzle. 

This hop unit has multiple grub screws to keep your hop up in place without any wiggle, improving accuracy. 

If you haven't tried TDC hop units, then you're missing out on so much potential from your capa!!

Delivers more range and improved accuracy from your Arisoft AEG. Designed for primerally M4 AEGs but may be compatible with other AEGs that use an M4 style hop unit. 

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.

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.

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.

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.

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.

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.

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.

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.

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.

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.

If you are building an Airsoft DMR this enhanced HOP-up rubber set from Laylax Prometheus should be on your shopping list! Laylax Prometheus has a fantastic reputation for enhanced HOP-up buckings, providing the Purple bucking used in the Bolster Armouries ONYX AEG series thanks to Prommy's wealth of experience and pedigree. We love them, and we think you will too!

This bucking is designed for builds shooting at 350-400 FPS, putting it right in the sweet spot for DMRs. When installed, this set should improve range, enhance air seal and allow for heavier weights of ammo to be used. Compatibility-wise, this should fit the vast majority of Airsoft AEGs which use the standard TM AEG style HOP-up bucking/rubber and nub, which is almost all of them!

We have stocked this particular AEG hop rubber set for years. One of our most popular, reliable and promising items you can install into your own Airsoft hop unit. 

Compared to the Autobot, this hop up rubber is far stronger and has a flatter shaped contact patch inside. 

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

This is an official aftermarket Airsoft Hop-up Unit for the ASG Scorpion Evo, made by none other than ASG themselves! This awesome unit is constructed from a single piece of CNC 'Aerospace' Aluminium, and states it will yield a 20% increase in range and accuracy. It is also said to be tailored to Flat Hop and R-Hop setups, if you have already made this modification. If you haven't done this modification, don't worry, it will still give you performance benefits.

A replacement Hop-Up Unit for Airsoft AK Rifles, designed and constructed to high standards by Action Sports Games in Denmark as part of their Ultimate Upgrade Parts Range. 

A popular upgrade over standard hop rubbers. The Red Shark version has 3 fins inside compared to the all smooth Blue variant from MAD BULL. 

A replacement hop-up rubber and bucking for Airsoft AEG Hop-Up units. 

The external surface is ribbed to keep your inner barrel more stable inside your hop up unit with next to no play at all after you have fully re-assembled your Airsoft weapon. 

A high quality replacement Hop up rubber, made to 70 degrees of hardness, and designed for VSRs, as well as KJW and WE Airsoft designs.

If you are looking to upgrade your HOP unit, in most cases these days there isn't much to gain if you already have a rotary unit in your gun. This is the exception! Krytac has taken the rotary HOP unit and added in audible and tactile clicks when you adjust, locking the unit in its set position and allowing you to adjust accurately even in low light conditions! The unit also has engraved numerical setting indicators around the adjuster, allowing you to keep track of which setting works best with which BB weight, avoiding the trail and error! This package also includes a KRYTAC HOP rubber.

Replacement HOP rubber for AEGs using TM AEG hop units. This will work in the vast majority of AEG Rifles, Submachine Guns and Support Guns. Perfect to replace a torn rubber or to get ahead of the seasons and have your AEG perform well in the icy cold.

Maple Leaf has quickly risen to become the market leader in HOP-up rubbers and inner barrels, and the Maple Leaf Macaron bucking is no exception. The design of the Macaron bucking features a narrower entrance to help the BB feed in a consistent spot with each cycle, and a contact patch with a refined shape intended to provide more consistent lift across the entire upper surface of the BB for greater accuracy than standard HOP buckings.

Maple Leaf has quickly risen to become the market leader in HOP-up rubbers and inner barrels, and the Maple Leaf Macaron bucking is no exception. The design of the Macaron bucking features a narrower entrance to help the BB feed in a consistent spot with each cycle, and a contact patch with a refined shape intended to provide more consistent lift across the entire upper surface of the BB for greater accuracy than standard HOP buckings.

ASG Ultimate barrel locking clips are sold at 5 per pack. Ideal replacement for any loose or fragile barrel clips. 

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 WE,  Tokyo Marui, or VFC EU-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.

A high quality replacement Hop up rubber, made to 50 degrees of hardness, and designed for VSRs, as well as KJW and WE Airsoft designs.

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.

A high quality 60 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.

A 50 degree AEG hop rubber for standard AEG barrels and hop units, designed and manufactured to absolutely maximise range, accuracy and consistency.

A 50 degree hop rubber for VSRs and unbridged barrels, designed to maximise range at a slight cost to accuracy. 

A 70 degree hop rubber for VSRs and unbridged barrels, designed to maximise range at a slight cost to accuracy. 

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.

A 60 degree AEG hop rubber for standard AEG barrels and hop units, designed and manufactured to absolutely maximise range, accuracy and consistency. 

A high quality performance aftermarket hop up for Tokyo Marui Airsoft M4 / M16 series AEGs.

If you're running a spring-powered Dragunov SVD and want more accuracy, the AP Precision HOP-Up Chamber for SVD Spring Sniper Rifle is what you need. This CNC aluminium HOP-up unit is the gen.2 iteration of Airsoft Pro's SVD HOP-up chamber, offering a wider HOP-up arm to provide more side-to-side stability and a stronger HOP-up effect. The set includes the chamber, the HOP-up arm and a 3mm rubber roller which can be cut to size and used as a nub. 

The AP HOP-up chamber is compatible with the original SVD nub, bucking and inner barrel but can also make use of upgraded inner barrels, buckings and nubs designed for AEGs. This gives you access to one of the widest aftermarkets for upgraded parts with near-unlimited options, meaning you can set your SVD up to suit your needs perfectly. Compatibility-wise, this HOP-up chamber is only for spring-powered or CO2-powered SVDs from A&K, Koer, ACM or King Arms and won't fit AEG SVDs of any type. 

The NexxSpeed hop unit is the closest thing to a true Top Down Centre (TDC) hopup.

Machined from Brass and cut with precise CNC tolerances giving you a great seal for your nozzle. 

This hop unit has multiple grub screws to keep your hop up in place without any wiggle. It also comes with a guide rod stability rod which improves accurancy and follow up shots. 

If you haven't tried TDC hop units, then you're missing out on so much potential from your capa!!

The HOP-up bucking combo from CowCow is a great buy if you are the type of exacting player who swaps their HOP rubber to get the best possible performance in various ambient temperatures. Included in the set are 3 HOP rubbers/buckings designed for TM based GBB pistols and WE GBBRs, and offer three different levels of hardness for different applications.

If you want to get rid of the original polymer HOP-up unit from your VFC SCAR-H you have been SOL, until now! The AirsoftPro (AP) CNC Aluminium HOP-Up Chamber set for VFC SCAR-H is constructed from CNC machined aluminium and finished in gorgeous metallic red anodising. The set includes all the parts you will need to complete the HOP-up unit and also a HOP-up bucking/rubber and an H-nub. 

This HOP-up unit offers improved strength and air seal when compared to the original unit, and it does this while keeping the weight to an absolute minimum (only 16g!) thanks to its CNC machined aluminium construction. If you want better performance at long range out of your VFC SCAR-H this is the key!

For those Hi-capa builders out there, especially the ones who appreciate the glamour and flair of gold parts, this one is for you! The HOP-up base for TM Hi-capa from Airsoft Masterpiece is precisely machined from brass and finished in gloss gold, and comes with the HOP adjuster gear and tensioner.

A replacement hop up rubber and bucking designed for m130-150 springs, but can also be used for low FPS builds with heavyweight BB. 

Maple Leaf has quickly risen to become the market leader in HOP-up rubbers and inner barrels, and the Maple Leaf Decepticon bucking is no exception. The design of the Decepticon bucking features a narrower entrance to help the BB feed in a consistent spot with each cycle, and a contact patch with a refined shape intended to provide more consistent lift across the entire upper surface of the BB for greater accuracy than standard HOP buckings. This particular bucking is made from silicone, offering greater resistance to temperature changes than rubber equivalents, making it especially useful for a gas blowback rifle or accurized GBB pistol.

Replacement standard loading ramp and clip for Tokyo Marui AWS and Well MB44 Airsoft, spring powered sniper rifles.

If you are looking for more consistency, accuracy and range from your setup you can trust Maple Leaf to provide you with the best solution! The Super Hop Rubber is a refined design based on the TM Pistol and VSR-10 HOP pattern, but with a widened contact area to provide a greater HOP-up effect, spread more evenly across the upper surface of the BB to provide a more consistent and straight trajectory.

Maple Leaf has quickly risen to become the market leader in HOP-up rubbers and inner barrels, and the Maple Leaf Wonder Bucking is the latest of their mould-breaking designs. The Wonder HOP-up bucking is designed with tighter groupings in mind, with a wide "r-hop" style contact patch and stabilising wings on either side. The Wonder sacrifices all-out range over the excellent Maple Leaf "Super" series of HOP-up rubber for greater precision and tighter shot-to-shot groupings, making it perfect for a setup with an emphasis on accuracy. 

A HOP rubber for AEGs which is compatible with, and allows you to install Crazy Jet GBB inner barrels in your AEG.

An enhanced HOP Unit for Army Armament / Tokyo Marui branded M1911 platform Gas Blowback Replicas, which serves to improve compression and lift achieved from your BBs. It is constructed from Aluminium and comes supplied with the Chamber, HOP Army, Adjustment Wheel, Two Screws and a small O-Ring.

An excellent upgrade or replacement over standard AEG AK hop units. CNC machined to an incredibly high standard you will not be disappointed. 

An excellent upgrade or replacement over standard AEG AR36 hop units. CNC machined to an incredibly high standard you will not be disappointed. 

A replacement Hop-Up unit for ASG Brand AUG, and is part of Action Sports Games Ultimate Upgrade Parts range. The Hop-Up unit is an Alloy hop up chamber, designed to be stronger than its polymer counterparts, and features a Polymer Hop-Up adjuster.