A sling swivel component that interfaces with an S.I.R. system to allow attachment of a sling strap thereto while also having a flat head screwdriver integrated into the end of the threaded neck of the swivel body itself is provided. The sling swivel includes a swivel body and a sling swivel pivotably attached to an upper end of the swivel body. The sling or shoulder strap passes through the elongated opening of the sling swivel. The swivel body includes a threaded neck that is sized for threaded engagement within one of the threaded openings that are normally provided along the S.I.R. system such as those found in one of the optional rail segments or directly in the lower hand guard of the rail system.