Compatible with 4 barrel compact to 5 barrel full size, work with 4.5 is best which like Glock 17. Incompatible with sub-compact or micro-compact. You can search the ASIN B09H3X6QVD for Mega-Fit Holster Compact. Incompatible with pistols with red dot sight or high front sight. You can search the ASIN B0BQ1GYQX7 for Mega-Fit Holsters GEN2. Level II Retention. It will automatically lock on the trigger when you put the weapon in, and makes a click sound to let you know that it is securely locked. Pull the weapon out quickly by pressing the button with your index finger. The bottom of the holster is open to support the longer barrel sticking out. 360 degrees tooth gear for omnidirectional rotation, feel free to wear on Web Belts within 2 inches and Duty Belts. The protruding button makes it easier to touch and its skidproof stripe helps you recognize it through your sense of touch. Made of military polymer material, easy to clean and maintain, so light to carry. Suitable for different places like military, courser, shooting coach, law enforcement agencies or personal protection use. Great for civilians and off duty officers. UPC 612292161330 Size Right Hand Color Black Brand Name CYTAC Unit Count 1 Count Item Weight 0.1 Pounds Closure Type Button Manufacturer CYTAC Material Type Plastic Product Style Holster w/ Paddle Item Type Name gun holster Hand Orientation Right Included Components Allen Key Warranty Description 1