The Modular Rail Cover Switch Mount combines rail cover protection and pressure switch mount in one handy package. This special purpose rail cover features an integral, recessed pressure switch mount and two interchangeable inserts for different pressure switches. Clips on to any standard Picatinny spec rail. Made in the USA. For Picatinny spec rails Integral, recessed pressure switch mount Includes 2 inserts for different pressure switches Mounts anywhere on the rail without removing other attachments Rubbery grip surface