Features:

This Metal Rail Mount Sling Swivel can fit for 20-21mm Weaver or Picatinny rails.
High quality aluminum alloy in durable black matte finish.
Shock proof can be used on real fire caliber.
For Corded & Hooked Sling.

Specifications:

Material: metal
Color: black
Weight: 13g
Width: 2mm
Height: 19mm
Length: 38mm
Package includes: 1x rail mount sling swivel