Excellent rear sling attachment point - Magpul Industries ASAP Ambidextrous Sling Attachment Point

Excellent rear sling attachment point. Allows for a easy movement of rifle side to side. Works well with a Magpul MS3 sling. It's a little tricky to install the "cotter" key, while depressing the butt plate against the take down pin retaining spring, but a "third" hand makes it easy.