Progressive AEG spring - M160
AimTop M160 progressive (variable) spring. Made of steel spring wire with the thermal treatment.
AIM TOP International
was founded in 1993 in Taiwan as an leading manufacture for Airsoft and paintball components. AIM Top is known for their AEG platform as their most known products are their clone AEG’s. They also sell upgrade parts for the AEG and produce consumables like Green gas and BB’s.