SWIVEL to WEAVER adaptor for BIPOD mounting
This adaptor is designed to fit into the sling swivels that are common 
on many rifles. 
Simple design is very strong and easy to install.
It is then easy to attach your Weaver style BIPOD to this rail.
Popular Bipods like Atlas or Tactical EVO will attach to this rail.
Precision made product.
ade in the Czech Republic.