Made of high-quality ABS Plastic，injection-molded，strong enough to hold your AR-15. Rigid construction，can handle AR-15 steadily.(The Lock can just provide limited protection,if want to prevent thief or children,you need to buy updated lock) Sleek surface with frosting treatment, ensuring that your device will not be scratched. Designed for AR-15, solid, low profile and precise, snug fit the gun.