Picatinny/Weaver Rail Bipod Adapter

The Bipod Adapter made of black anodized aluminum, it with a sling swivel stud that fits most rifles. Its rubber base provides excellent cohesion and the liner is designed to fit snugly with the original swivel, delivering unbeatable stability.     
The Picatinny Rail Bipod Adapter with Sling Swivel Stud. You may have questions about how to install or use the product, I offer a product photo for reference.      
All brand new condition, including Two short ones and Four long ones. Each price: $10.  
Meet up in Calgary, shipping on buyer ( Canada Post flat box: $19).