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£5.99
  • Includes Bucking
  • For Marui Style AEG
  • For M130-150 Spring

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

£5.99
  • 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. 

£6.99
  • 5 Clips Per Pack
  • Fits Mix Of Hop Units
  • Can Be Shaped With Knife

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

£7.99
  • Great Spare Part
  • Hop and Nub Set
  • Soft Rubber Design

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

£9.99
  • 50°/60°/70° Degrees
  • Crazy Jet Compatible
  • Increase Range & FPS

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

£15.99
  • Sub 370fps Builds
  • 2 Rubbers & Nubs
  • 60 Degree Blue Rubber

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. 

£21.50
  • Easy Build & Installation
  • CNC Machined Aluminium
  • Improved Accuracy & Range

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

£22.99
  • Easy Build & Installation
  • CNC Machined Aluminium
  • Improved Accuracy & Range

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

£24.99
  • Perfect Upgrade
  • Alloy Hop-Up Unit
  • No Loose Movement

A replacement Hop-Up Unit for Airsoft M4 / AR-15 / M16 Rifles, designed and constructed to high standards by Action Sports Games in Denmark as part of their Ultimate Upgrade Parts Range. 

£24.99
  • Perfect Upgrade
  • No Loose Movement
  • Alloy Hop-Up Unit

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 and Hop-Up adjuster.

£26.99
  • 2 x HOP Arms
  • Alloy Construction
  • Accurate Adjustments

A series of very precise and Alloy constructed HOP chambers for either M4 or AK platform replicas. Both are supplied with two types of HOP Arms.

£54.99
  • Great Airseal
  • CNC Anodised
  • Tracer/HOP Unit

This HOP Unit is made from CNC Anodised Aluminium, and features an integrated Tracer Unit that draws power from your Main Battery, allowing you to make the most of a Tracer Unit, without having to have a big Suppressor on the end, or worry about Battery Life.

£69.99
RRP £79.99
Save £10.00
  • Tight Adjustment
  • Uni-body Design
  • Range Increase


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.

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£2.99
  • For AK HOPs
  • Polymer Made
  • Ideal Spare Part

A tough Polymer C-Clip for AK style HOP units.

£3.49
  • Nub Included
  • 70 Degree Rubber
  • For Standard AEGs

A HOP Rubber for Marui/JG and other compatible Airsoft Electric Guns, which has a hardness of 70 degrees, and is the perfect way to achieve better stability and range when coupled with the right settings and BB weights. The Rubber comes included with a Nub and Collar.

£3.99
  • Double Rib
  • ~60 Degree
  • Good Air Seal

A series of HOP Buckings from Modify, one for all models of AEGs and another for the Modify Hybrid Inner Barrels.

£5.99
  • Multiple Thickness
  • 4 x 2 patches
  • Pre-cut


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.

£6.99
  • Wide Flat Patch
  • 80 Degees Of Hardness
  • For Marui Style AEG Barrels

A high quality 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. 

£8.99
  • Improves Air Seal
  • For Standard AEGs
  • Diamond Shaped Patch

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

£8.99
  • Improves Air Seal
  • For Standard AEGs
  • Diamond Shaped Patch

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

£11.99
  • 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.

£15.99
  • Nub Included
  • 2 Rubbers & Nubs
  • 60 Degree Rubber

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. 

£15.99
  • Shark H-Nubs
  • Soft & Hard Setups
  • AEG Inner Barrel Use

For the Airsofter who likes to tinker with their AEG - the two included bucking are for you to experiment between different harnesses to accomplish the ideal range and accuracy from your entire setup.

£19.95
  • Easy Build & Installation
  • CNC Machined Aluminium
  • Improved Accuracy & Range

Improve your range and accuracy dramatically over your stock hop unit. Not only does the hop unit look good it performs amazingly. 

£19.99
  • For Marui M4 / M16
  • Small Amount of Flex
  • All Components Included

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

£21.50
  • Easy Build & Installation
  • CNC Machined Aluminium
  • Improved Accuracy & Range

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. 

£24.99
  • Perfect Upgrade
  • Alloy Hop-Up Unit
  • No Loose Movement

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. 

The HOP Unit is without a doubt the most important vital part of getting your BBs to reach out as far as possible, and is subject to lots of personal preference, experience and experimentation. There's lots to know with regards to HOP Units so its best to do plenty of research and/or ask others what they've had success with. There are many different types of HOP Units, which all offer a different level of precision over the adjustments you can make, and of course many different types of assemblies for different Gearboxes. When looking at HOP Rubbers/Buckings be sure that you're buying the correct type for your HOP Unit with regards to the type, hardness and ammo choice you have made.