Mounting your RMS or SMS to your Glock MOS just got even easier. The Shield Sights Low-Profile Glock MOS mounting plate, allows you to securely mount your red dot sight to your glock without the fear of anything coming loose or losing your zero. The mount keeps the red dot so low, you can co-witness without suppressor sights. DISCLAIMER: This product is not manufactured, authorized, endorsed, or warranted by GLOCK. GLOCK does not warrant or represent that this product is compatible with GLOCK pistols.