Set a custom post type to not show up on the frontend - WordPress

functions.php

<?php
function chr_redirect_post_type() {
    global $wp_query;
    if ( is_post_type_archive('sliders') || is_singular('sliders') ) :
        $url = get_bloginfo('url');
        wp_redirect( esc_url_raw( $url ), 301 );
        exit();
    endif;
}
add_action ( 'template_redirect', 'chr_redirect_post_type', 1);