Sorbothane is the special material that was developed for impact and vibration absorption, patented and manufactured in the USA. It is fantastic for use as the impact pad for AEG or spring action rifles pistons. It comes with two huge benefits:

• it helps with ZnAl gearbox shells lifetime
• a good way to make your rifle more silent  

SorboPad is made in four thicknesses for optimal AOE adjustment. Thicknesses listed 1 mm PU covering included:

• 3,5 mm
• 4,2 mm
• 5,8 mm
• 7,4 mm

SorboPad is also made in four hardnesses for ideal silent effect and vitality:

• 40 Duro - black colour - for springs of up to SP110 strength
• 50 Duro - šedá colour - for springs of up to SP120 strength
• 60 Duro - modrá colour - for springs of up to SP130 strength
• 70 Duro - černá colour - for springs of up to SP140 strength
• For high fire rate and high-capacity guns (for example machine guns), where 100+BB bursts can be expected, we recommend using a spring one level weaker than stated above (e.g. maximum spring strength of SP120 for 60 Duro hardness)
• For DMR builds where just SEMI is expected one level harder spring can be setted
• For example 60 Duro: standard AEG up to SP130, machine gun SP120, DMR SP140