7mm upgrade pružina pro pušky - M150 (500 FPS)

7mm Upgrade Spring for Rifles M150 (500 FPS) is designed for upgrading airsoft sniper rifles where increased power and stable system performance are required. The spring is made from quality spring steel with proper heat treatment, ensuring good resistance to material fatigue and long service life during regular use.

This model provides an output of approximately 150 m/s (500 FPS), depending on the rifle configuration and installed internal parts. Thanks to its dimensions, it is suitable for most standard airsoft sniper rifle platforms and compatible with many stock plastic pistons.

This upgrade spring is an ideal choice for players looking to improve the performance, effective range, and overall efficiency of their manual sniper replica.

Features:

• upgrade spring for airsoft sniper rifles
• output: approx. 150 m/s (500 FPS)
• designation: M150
• material: spring steel
• heat-treated construction
• inner diameter: approx. 7.5 mm
• outer diameter: approx. 10.2 mm
• length: 251 mm
• compatible with most standard plastic pistons