ASG Ultimate Upgrade AUG Hop-Up Unit Alloy

Code: 17989
  • 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. 

Full description


The Hop-Up unit is compatible with AEG Style Inner Barrels, and features a Radial Hop-Up adjustment dial, making it easier to adjust for glove users. This is the perfect purchase for anyone looking to upgrade or replace their damaged AUG hop-up unit, for those building an AUG from scratch, or simply for those who like to keep a spare with their weapon should it break the day before a Skirmish. The hop-up unit can also be purchased for those who have multiple barrel setups for different weight BBs.


  • Part of Action Sport Games Ultimate Upgrade Parts Range
  • Comes with all necessary Cogs, Screws, Springs and Retainer Clips
  • Less Flex than traditional Polymer Hop-Up Units
  • Great upgrade for Stock Airsoft AUG Rifle
  • Hard to turn gears, great as your hop will stay set all day long

Package Includes:

  • Ultimate Upgrade AUG Hop-Up Unit

Special Instructions:

Please note that this Hop-Up chamber does not come with the Hop Rubber and Bucking, and can be purchased separately.



Internal Part Type
Hop-Up Unit


Colour Wheel Greyscale
Item Colour
Construction Icon
Alloy body with Polymer adjuster

Part Specific

Part for Power Source Type
Weapon Platform

Size guide

Parts Fitting

Upgrades and Downgrades should only be undertaken by experienced players, or Airsoft Technicians. Please note, changing any internal parts of a weapon voids its warranty unless done in-house by our staff. 

Please ensure that when fitting parts the part purchased is the correct part, as once a part has been fitted we cannot accept return.

We do know that players love to tinker, so we're here to give you help should you require it, and if needed you can get in touch with our workshop for more help!

Unique Parts

Please note that some parts may be unique to a specific brand of weapon. For example: Parts for an ASG M4A1 may not fit an ICS M4A1.

Parts from the same brand typically have a high chance of fitting, though be warned, some replicas use unique parts, so please ensure the part will fit before you attempt to fit it.

If you require help with fitting any parts feel free to get in touch with us via our Contact Us Page.

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