Lancer Tactical M120 G2 Metal V2 AEG Spring

Upgrade your Lancer Tactical Generation 2 M4 rifle with this M120 Metal Spring. This spring replacement provides a FPS of 390 when used in Version 2 gearboxes. The durable stainless steel construction ensures long lasting life and the tough alloy firmly maintains coil tension. Features: Increase velocity up to 390 FPS Durable Stainless Steel Construction Tough Alloy Firmly Maintains Coil Tension Instantly Alter AEG FPS Variable Pitch Spring Calculated Design for Best Consistency