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

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

£3.99
  • 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.

£6.00
  • For Hadron M-TDC
  • Cure Bad Trajectory
  • Greater Spin Control

This is a nub-plate for the latest generation of Hadron Designs' M-TDC Hop Cover. It has two adjustment points instead of one, offering the user greater control over BB spin.

£6.49
  • Wide Flat Patch
  • WE, KWJ GBB & VSR
  • Varying Degrees Of Hardness

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. 

£6.49
  • Wide Flat Patch
  • WE, KJW GBB & VSR
  • Various Degrees Of Hardness

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

£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. 

£6.99
  • Wide Flat Patch
  • For KSC GBB Style Barrels
  • Variable Degrees Of Hardness

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.

£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. 

£7.99
  • No Modification
  • For R-Hopped Guns
  • Even Bucking Contact

R-Hopping is the latest popular HOP modification for Airsoft Guns, which involves using a Flat Contact Patch on the bucking to impart perfectly even backspin on your BBs, even if imperfections are present in the BB. This style of HOP Modification usually requires a modified HOP Arm, which can lead to imperfections if the modification is not carried out perfectly. This HOP Arm is ready to drop in to any R-Hopped system and apply perfect and even pressure on the contact patch, allowing you to make the most of your upgrades. Not only this, but it will work with standard HOP Units, stopping you having to spend money on aftermarket units.

£7.99
  • No Modification
  • For R-Hopped Guns
  • Even Bucking Contact

R-Hopping is the latest popular HOP modification for Airsoft Guns, which involves using a Flat Contact Patch on the bucking to impart perfectly even backspin on your BBs, even if imperfections are present in the BB. This style of HOP Modification usually requires a modified HOP Arm, which can lead to imperfections if the modification is not carried out perfectly. This HOP Arm is ready to drop in to any R-Hopped system and apply perfect and even pressure on the contact patch, allowing you to make the most of your upgrades. Not only this, but it will work with standard HOP Units, stopping you having to spend money on aftermarket units.

£7.99
  • 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.

£9.99
  • Replacement original part
  • Alloy HOP unit and Rubber
  • Includes adjuster and C-clip

If you are looking to replace your AK's entire HOP unit, CYMA have just the thing! Including a HOP rubber and all the parts needed to complete the HOP unit, if you have lost a tiny bit during disassembly or you just want a fresh start, the CYMA Metal Hop chamber includes everything you'll need, other than the HOP nub!

£10.99
  • Requires Hadron TDC
  • Replaces MK.23 HOP arm
  • Improves HOP performance for heavy BBs

A replacement HOP arm for your MK23 pistol, either TM or ASG. This part will enhance your pistols range and enable it to apply HOP to BBs of 0.4g and higher!

£12.99
  • Aluminium
  • For Army/Marui
  • Improved Compression

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.

£14.99
  • 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.

£18.99
  • Wide Flat Patch
  • For KSC Style Barrels
  • 75 Degrees Of Hardness

A great way to modify your KSC Airsoft gun. 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.

£18.99
  • Military Grade Polymer
  • Upgrade Hop Unit
  • Highly Durable

A military grade polymer replacement for the stock Toyko Marui Airsoft MWS Gas Blowback Rifle hop-up unit designed and built by Angry Gun. This high quality part is an upgrade from the stock one and is perfect for those who are further wanting to upgrade the performance of their replica, or for those who have broken their existing part and are looking to upgrade.

£22.99
  • 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. 

£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 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. 

£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. 

£27.50
  • 3D Printed
  • 0.4g+ Required
  • Lightweight & Tough

A 3D Printed Outer Barrel Assembly for TM & WE branded EU17/EU18 model GBB Pistols, which offers a TDC Grub Screw HOP style adjustment to increase performance when paired with a quality bucking and heavyweight BBs.

£27.99
  • CNC Machined
  • Consistent Pressure
  • Anodised Aluminium

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

£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.

£3.49
  • Self Centralised
  • Concave Pattern
  • Fits under the Hop-Up Arm

A hop-plate designed to be fitted to Tokyo Marui / ASG MK23 to improve the range and acc curacy of the weapon by applying more consist ant pressure to the BB through the hop-up rubber.

£3.49
  • Concave Pattern
  • Easy to Fit and Install
  • Fits under the Hop-Up Arm

The newest hop plate to come from 3D printing innovators 'Hadron Designs' and represents a massive improvement over the original H-Plate. 

£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.

£4.99
  • 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.

£4.99
  • Hop Rubber
  • Cold Resistant
  • Keep your AEG shooting far in winter

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.

£5.95
  • OEM Replacement
  • Standard Hop Unit
  • C-Clip & O-Ring Included

A standard replacement hop unit and chamber for the GHK G5 gas blowback rifle that includes everything except a rubber and nub.

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.

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 from G&G to ASG. You’ll find a range of accessories and attachments to improve the precision of your shots too, like a holographic, reflex and red dot sights