The QI is an inside the waistband holster for easy carry, concealed carry and easy storage. The QI will accommodate multiple firearms in varying lengths and sizes. It has a push-button mount for fast, simple attachment to belts, easy to adjust belt width, locking button for worry free security and multiple holes for 270 degrees cant adjustment. The all Kydex body provides a custom fit to each firearm and maintains its shape even with the pistol un-holstered. The dual sided multi option mounting block allows user to wear it left or right handed. The mount holes are compatible with all industry mounting options for belt, Molle or thigh holsters. The holster will accommodates up to .5" high night sights, suppressor sights and rear sight mounted optics. Size 4 fits- 1911's; Colt; Remington; Kimber; Springfield all models including TRP half and full rail; Sig 1911; all Mil-Spec.