The PM220 Sling Swivel Stud to Picatinny Rail Adapter with Palm Rest allows the mounting of rail mounted bipods to sling swivel stud equipped rifles. Many precision bolt action rifles are not equipped with Picatinny rails for mounting modern popular rail mounted bipods. The PM220 Sling Swivel Stud to Picatinny Rail Adapter with Palm Rest solves this problem. The 4-½” long Picatinny mounting rail is precision machined from T6 Aircraft Grade Aluminum to meet MIL-STD 1913 rail specifications. The Picatinny Mounting rail is type III had anodized per mil-spec. No permanent modification is required and all mounting hardware is included.