Snap-hook style sling loops with an inner diameter of at least 3/8" are required, but 9/16" and larger will provide full range of motion.
Driven by the operational experience of Magpul DynamicsSM instructors, the MS3 Multi-Mission Sling System was designed to give a versatile weapon-retention solution for a multitude of tactical environments and missions. As a standalone product, the rapidly-convertible MS3 allows an operator to leverage the maneuverability of one-point attachment for direct action, or two-point attachment for stability. Single-hand adjustments and quick-release, positive-locking hardware provide flexibility and durability in a truly adaptable sling system.
Used in conjunction with the Magpul ASAP® plate (sold separately), the MS3 enables seamless transitions into an array of shooting positions without getting bound or fouled. The MS3 concept allows switching from Weapon Shoulder to Reaction Shoulder for shooting around corners, under vehicles, or to minimize exposure. The MS3 can also increase operator survivability by keeping the weapon in the fight in case of injury to the operator's shoulder, arm, or hand.
The MS3 GEN 2 incorporates a new low profile quick-adjust Slider which minimizes bulk and allows for secure, yet effortless, sling adjustment. Webbing length has also been increased for a comfortable fit with all body types and armor configurations. 
Features
100% Berry Compliant
Fast transition between one-point and two-point configuration
Light weight yet durable hardware made with hardened steel and heavy-duty polymer
Symmetrical Paraclip shackles allows for easy transition and provides weapon quick-release capabilities in an emergency
Cross-Bolt Lock Bar in each Paraclip allows the user to optionally lock its lever closed for extra security
Steel Paraclip levers are case hardened and finished with a ferritic nitrocarburizing process for extreme resistance to wear and corrosion
Custom 1.25 inch wide nylon webbing material is strong and wear resistant while remaining anti-chaff for user comfort
Low-profile adjustment Slider for adding or removing sling tension in two-point mode with a single-hand
Coyote, Recon Green, and Gray colored webbing is Near Infrared (NIR) resistant