SERPA Auto Lock release. Passive retention detent adjustment screw. Full-length holster body protects rear sights. Flexible thigh platform conforms to leg size. Y-harness suspension system distributes weight evenly, keeps holster vertical and allows use of pocket. Quick-disconnect swivel buckles for quick holster mounting/dismounting. Accessory mounting points for pouches, knives, mag cases, etc. Hole in holster body for optional bungee retention. Rubberized leg straps eliminate sliding.