Factory-installed Magpul QDMs constructed of Melonite finished steel for strength and extreme resistance to wear and corrosion; Fits all standard size QD cupsDedicated two-point sling that can be configured for multiple functions with optional adaptersSecure and rapid length adjustment with MS1 Slider; No tails, loops, or other potential snag hazards; Lightweight, yet durable slider and buckle hardware made of reinforced engineering polymerProprietary weave, 1.25-inch wide nylon webbing is strong and abrasion resistant while tubular construction provides anti-chafing user comfortColored webbing has Near Infrared (NIR) treatment to reduce IR signature