Modify Rotary Spring Guide for V2 Gearboxes $300 Mystery Box Active brake with adjustable braking

Active brake with adjustable braking power

The spring mechanism can be adjusted with light and heavy spring options

an Auto-Stop Smart Charger

4v 350mAh Lithium-Ion JST Battery

If you are a beginner in airsoft or you are buying a battery for a beginner

Modify Rotary Spring Guide for V2 Gearboxes $300 Mystery Box Active brake with adjustable brakingAbout the Modify Rotary Spring Guide The Modify Rotary Bearing Spring Guide for Version 2 (V2) Airsoft Electric Gun (AEG) Gearboxes. The shaft can rotate to reduce some of the friction against the spring and the base of the spring guide has ball bearing, thrust plate. The center of the shaft is hollow reducing the overall weight of the spring guide and ultimately your airsoft gun. The base is constructed of one piece of steel and thus has steel ears