The SOFT, Ultimate, MS04, Orange, M125 spring is an excellent choice for electric Airsoft guns. It is made of military-grade steel, offering minimal power loss and high consistency.

Features:

• Material: Military-grade SiCr steel for increased durability.
• Testing: Conducted with a 6.03 – 300mm barrel, zeroed HopUp, and 0.20g BBs.
• Progressive coil: Provides a soft start that facilitates pressure management.
• Closed and polished ends: Minimize side bending and maintain stability.
• Pre-compressed: Reduces power loss during compression.
• Coating: Black zinc coating for corrosion resistance.
• Specification control: Ensures uniformity in every spring.
• Color coding: Makes it easier to choose the right spring.