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Lonex Aluminum One Piece Metal Hopup for AK Series Airsoft AEG Rifles

ID: 46901 (HU-GB-01-71)
3.0 stars, based on 4 reviews
Lonex Aluminum One Piece Metal Hopup for AK Series Airsoft AEG Rifles
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Hopup unit may require assembling
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*Hopup unit may require assembling
The Lonex ULTIMATE Hop-up chamber unit is designed for the AK family of rifles. This Hop-up chamber unit features top notch air seal and is designed to provide the best possible bb flight control.


  • Made from high quality aircraft grade aluminum alloy
  • Includes Everything for Complete Hopup Unit, Requires Assembly
  • O-Ring Seal on Gearbox Side
  • One-Piece Hopup unit.
  • Bucking and Nub sold separately
Application: For AK and other compatible Airsoft AEG models that uses AK hopup units.
Material: Aluminum, One Piece
Type: One Piece.
Manufacturer: Lonex

Note: This product is designed to fit common AK metal bodies. It will work with plastic body AEGs with som

4 Customer Reviews

(Write a review)

by Jeremy G. on 01/05/2018
"This is my go to aftermarket hop up. The main point about this hop up is that it works with most mags, as opposed to other hop ups. The e&l hop up nozzle goes too far down and causes double feeding with certain mags. The cheap looking matrix/cyma one was awful; the nozzle was either too far back or forward (it was 5 years ago) and my mags couldn't fit into my ak cpw. Then the real sword nozzle is too short; it wouldn't active my rpk mag in my echo 1 rpk for feeding.

Anyway, when it comes to this hop up, it actually does what a hop up does. It will fit most mags and fits into a variety of guns and barrels. I had this a e&l gen 2, echo1 rpk, and echo1 contractor ak. Then it has this little circular extension in the back so the hop up seats flush with the gear box for proper feeding and air compression.

Also, yes there's no hole for the screw in the back of the hop up, but it honestly doesn't need a screw there. The plastic is large enough that it keeps it in place.

-Works with a variety of mags
-Works with a variety of guns
-Flawless feeding and accuracy

-False advertising since there's no hole for the back screw, but that's not needed.

Pro tip: Place a O-ring on the front screw where the slider is to prevent the slider from moving.
by Derek E. on 08/16/2016
"Every hop-up unit that i've bought has been Lonex and they have yet to let me down. This Unit is an awesome upgrade for your gun. The parts dont fit together perfectly but thats where sanding comes in which is what makes Lonex hop-up units so good; sand to fit your gun. The only issue ive ever had with my hop-up is losing hop. (after about 60 mags mind you). A little adjustment, then tightening the adjustment screw and i have yet to lose any hop. Overall, a great unit


-Metal unit
-High quality polymer parts
-Sand-to-fit parts
-Strong hop w/ the right bucking and nub


-Metal (Can be affected by cold weather)
by sandra b. on 03/17/2016
"on arrival everything seemed fine until i started assembling it when i noticed i have the same problem as the person below me has stated about the hole not being there for the screw. But other than that the hopup works fine. In all honesty though id steer clear of this and get a better hopup

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