Which of these select hop up buckings?
 

I am only able to acquire a bucking from the list below (unfortunately). Anybody have advice/experience/suggestions?

I've done a good amount of research, but the results are so varied it's difficult to draw accurate conclusions, especially with Promy and Madbull.

My gun is a G&G M16 A3 MAX, shooting perhaps 420 - 440 fps with .2. Note: I do NOT want to change the hop-up chamber if at all possible.


AVAILABLE BUCKINGS:

Prometheus Air Seal Chamber Packing (hard and soft available)
ARS black
Guarder Clear/Black
King Arms (40/60/80 degree available)
Madbull 60 degree blue and red (shark fin)
KM Type Separate Urethane Rubber Chamber - RH65 New Type

I'm pretty poor so I'm more inclined to the cheaper brands, however I am definitely willing to dish out the extra cash if it was worth it.

Thanks folks!

I'd go with ARS and an SCS. Firefly is the best you can get and it's not much more expensive than that.

- Prommy is always a good bet.
- ARS seems to make great quality stuff (I think there's a few gundocs/veteran players here that absolutely love ARS's stuff) so I wouldn't doubt that it's buckings are high quality as well.
- Guarder's clear buckings as of late seem to have manufacturing defects or something so I'd avoid them for now
- KA and Madbull also make some pretty good quality buckings from what I understand as well

Also, the PDI W-hold bucking.... I was told it's good but something about if you go full auto it doesn't work that great. If you like to play as a DMR and shoot single shot then maybe think about going with the PDI W hold.

Yeah I was wanting to get that PDI W however I could only find it in the states and didn't consider it worth the ~ 45$ it would have cost to get it up here. The firefly I haven't been able to find at all. . .

Any idea where I'd pick up the SCS??

Never mind, found it at airsoftparts.ca!!