The Safariland 6360RDS-2222-481 Holster for M&P 2.0 9MM CORE is specifically designed for firearms with red dot sights mounted to them. This holster with the Automatic Locking System (ALS) builds on the foundation of the Self Locking System (SLS). It locks the weapon in all directions upon holstering, it's operable with the thumb, and the weapon can be drawn straight out of the holster with no twisting required.Features :ALS/SLS LockFits M&P 2.0 9MM CORE with X300 or Similar Size Large Light and OpticSTX Basketweave