Magpul – RSA Rail Sling Attachment, Picatinny Forward Sling Mount

The Magpul RSA® (Rail Sling Attachment) provides a low-profile, forward-mounted sling attachment point for clip-in style sling systems such as the Magpul MS3® and MS4®. Designed to mount directly to any 1913 Picatinny rail, the RSA offers a durable and unobtrusive solution for modern rifle sling setups.

Constructed from all-steel and finished with a QPQ salt bath nitride treatment, the RSA delivers exceptional resistance to wear and corrosion while maintaining a compact footprint. Despite weighing only 1.3 ounces, the mount has passed stress testing in excess of 300 pounds, making it suitable for hard-use duty, training, and preparedness applications.

Its streamlined design keeps the sling attachment point close to the rail, minimizing snag hazards and interference with other rail-mounted accessories. Whether you are running a convertible sling or a dedicated clip-in configuration, the RSA provides a strong and reliable forward sling interface.

• Provides a forward sling attachment point for clip-in sling systems
• Compatible with Magpul MS3®, MS4®, and other clip-in style slings
• Mounts directly to any 1913 Picatinny rail
• All-steel construction for maximum durability
• QPQ salt bath nitride finish for superior wear and corrosion resistance
• Low-profile, unobtrusive design reduces snagging
• Passed stress testing over 300 lbs
• Lightweight design at only 1.3 oz.
• Made in the USA

Platform Compatibility: AR15, M4, M16

NSN: MAG502-BLK 1005-01-591-6119