From Magpul: The RSA provides a forward sling attachment point for the Magpul MS2 or MS3 and other clip-in systems. Made from precision cast black manganese phosphatized steel, the RSA attaches to any MIL-STD-1913 Picatinny/STANAG 4694 rail. The RSA has been proven to withstand stress tests of over 300 pounds yet weighs a mere 1.3 ounces.
Our take: The Magpul PTS RSA Rail Sling Attachment is a durable and cost-effective way to add a sling mount to any rail equipped AEG. Constructed from high grade steel, it is one of the most durable and easy to attach sling mounts on the market. The Magpul PTS RSA is compatible with any standard 20mm Rail equipped AEG rifle.The RSA (Rail Sling Attachment) is CNC Machined from a solid piece of steel, and features a rounded design, ensuring maximum durability and mobility. This is a perfect sling attachment for any type of sling, and is very easy to attach to any rifle's rail system.
- All cast steel construction
- Mil-spec black manganese phosphate finish
- Works on any standard 1913 Picatinny-spec rail