English
French
German
Italian
Spanish4UANTUM Friction Pro Hop-Up Bucking: AEG or GBB?
The name is the same; the part is not. 4UANTUM Friction Pro is two different SKUs — one for AEG, one for GBB. Buying the wrong bucking wastes a rebuild.
AEG path
If you are building or rebuilding an AEG, use the 4UANTUM Friction Pro AEG Hop Up Bucking.
A related AEG hop-up part, if you need a chamber for a Tokyo Marui M4 AEG, is the ProWin M4 Hop Up Chamber for Tokyo Marui M4 AEG.
GBB path
If you are building or rebuilding a GBB, use the 4UANTUM Friction Pro GBB Hop Up Bucking.
Do not add the GBB bucking to an AEG build, or the AEG bucking to a GBB build, just because the name is the same.
This article is not a general “what is hop-up” lesson. For the basics, see Airsoft Hop-Up: What Every Player Should Know.
Shop the 4UANTUM collection, then add the Friction Pro bucking that matches your platform — AEG or GBB.
