The sling swivels on the standard AR15/M16 rifle and carbine are found in the same location as those of the Model 1873 Trapdoor Springfield, and every U.S. infantry rifle in between.
All of this has changed dramatically in recent years as special operations personnel and law enforcement SWAT teams have emphasized the importance of transitioning to the service sidearm or to the weak side, and the need to have both hands free to operate ancillary equipment or control adversaries and still maintain instant accessibility to the urban rifle. It was for this reason that tactical slings, such as the Giles Sling, were developed. However, the problem of how to attach these slings still remained. It's now generally accepted that tactical slings should be mounted on the side of the weapon. GG&G makes an AR15 Sling Adapter and sling mounts for this very reason.
