RGW ARI Finger Stop for 1913 Picatinny Rail
Metal Construction
With 20mm Picatinny Rail System
Prevent a user’s hand from slipping off handguards onto a barrel or suppressor.
Designed to be located between your index and middle fingers.
This typically places it further forward on the handguard, which also means it doesn't get in the way when transitioning to kneeling or prone shooting positions, where most people move their support hand towards the rear.