According to ALG Defense, their forged sling swivel is so strong, it can hold up to 800 lbs but only weighs 0.5 ounces. It is forged out of 7075 Aluminum. It retails for $32.00.
ALG Forged Sling Swivels

According to ALG Defense, their forged sling swivel is so strong, it can hold up to 800 lbs but only weighs 0.5 ounces. It is forged out of 7075 Aluminum. It retails for $32.00.