If you are looking to replace your AK's entire HOP unit, CYMA have just the thing! Including a HOP rubber and all the parts needed to complete the HOP unit, if you have lost a tiny bit during disassembly or you just want a fresh start, the CYMA Metal Hop chamber includes everything you'll need, other than the HOP nub!
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.
This is an official aftermarket Airsoft Hop-up Unit for the ASG Scorpion Evo, made by none other than ASG themselves! This awesome unit is constructed from a single piece of CNC 'Aerospace' Aluminium, and states it will yield a 20% increase in range and accuracy. It is also said to be tailored to Flat Hop and R-Hop setups, if you have already made this modification. If you haven't done this modification, don't worry, it will still give you performance benefits.
A HOP Rubber for Marui/JG and other compatible Airsoft Electric Guns, which has a hardness of 70 degrees, and is the perfect way to achieve better stability and range when coupled with the right settings and BB weights. The Rubber comes included with a Nub and Collar.
Replacement HOP rubber for AEGs using TM AEG hop units. This will work in the vast majority of AEG Rifles, Submachine Guns and Support Guns. Perfect to replace a torn rubber or to get ahead of the seasons and have your AEG perform well in the icy cold.
A set of pre-made R-HOP patches designed to take the stress out of r-hopping your hop-up unit. These patches are replacements for existing hop-up rubber, and are designed to be glued into the window on the barrel rather than sliding over it. This modification is for advanced Airsoft tech, and requires existing r-hop knowledge or experience.