They come with mesh lenses

Løbet øger præcitionen af kuglerne samt øger udgangshastigheden

or at low battery charge

which means it can be submerged in 2 meters of water for 30 minutes and can withstand being dropped from a height of 1 meter without any problems

Avanceret M4 R-Hop Arm, VFC Outdoor They come with mesh lensesAirtech Studios is known for making small but really sensible upgrades! Here we have an R Hop Setup where you avoid having to cut and adjust your standard arm. Airtech Studios R HOP arm is designed to be a direct drop in upgrade that provides perfect (TDC) (Top Down Centre) pressure on the rubber. This model fits in VFC's rotating hop up chambers