Retro Arms CNC Anti-Reversal COMPRING Latch for Gearbox RA v.2

Anti Reverse Latch by Retro Arms for V2 Gearboxes 

This is hardened steel with a black protective coating. 

This latch does not use the traditional spring and instead uses these smaller springs provided in the package. Two springs a stiff spring and a soft spring. Choose which option you desire. 

Real Deal recommends starting with the stiff spring.