Maple Leaf HOP-Up Chamber for Umarex/VFC Glock

Maple Leaf
Code: MAP-08-036501
  • Alloy construction
  • 2 HOP-up arms included
  • For Umarex Glock 17, Glock 19/19X & Glock 45 GBB

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!

Full description



  • Alloy construction
  • HOP-up adjuster wheel accessible from either side
  • Includes 2 x HOP-up arms - Keep one as a spare or mod it to your liking!
  • Reduced tolerances compared with the stock unit - Improves accuracy and air seal
  • Suitable for GBB/VSR HOP-up rubbers & inner barrels
  • Recommended inner barrel - Maple Leaf Crazy Jet
  • Compatible with Umarex Glock 17 Gen.5, Glock 19 Gen.4, Glock 19x & Glock 45

Package Includes

  • Maple Leaf HOP-Up Chamber for Umarex/VFC Glock



Internal Part Type
Hop-Up Unit, Hop-Up Arm,
Patrol Base - Warning Icon
Patrol Base - Warning Icon
Parts Fitting


Colour Wheel Greyscale
Item Colour
Gun Metal Grey
Construction Icon
Alloy with polymer HOP-up arms
Internal Part Construction
Polymer, Alloy,

Part Specific

Part for Power Source Type
Weapon Platform
  • Pistol
  • Umarex/VFC Glock 19 GBB
  • Umarex/VFC Glock 17 Gen4 GBB
  • Umarex/VFC Glock 17 Gen5 GBB
Package Includes
  • Hop Unit
  • HOP Arm

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.