The Quick Detach Side Sling Attachment for Dovetails provides the flexibility to mount the front sling attachment anywhere on the rails of a tactical forearm or railed upper receiver to meet your mission requirement. This dovetail mounting capability means you can choose between a side mounted QD sling swivel or top mounted QD sling swivel to maximize the use of your tactical sling. As an added feature, it includes the limited swivel rotation feature that helps to keep your sling from twisting.Features : Installs easily Can be mounted on the side rail or top rail for maximum versatility Accepts all Heavy Duty or Standard push button sling swivels