The Magpul Rail Attachment RSA-QD (MAG337-BLK) provides a forward attachment point for the Magpul MS4 Sling and other push-button QD slings. It is Melonite finished steel, mounts on 1913 Picatinny rail, and places the attachment point at an angle optimized for comfortable two-point sling use while maintaining easy push-button access.

Made in U.S.A.