The SL Raptor® is a self-locking OWB Kydex® thermoformed holster. It is pre-formed with a curved back with most of the detailed molding on the outer portion. This adds to both comfort and conceal-ability. The Raptor® comes with belt loops for 1 1/2"" and 1 3/4". It features a Chek-Lok (trigger guard lock) which is very intuitive and a rear sweat guard. (Optional Y94 Tuckable Inside the Waistband adaptors are available separately) TUCKABLE IWB ADAPTORS