This Quick Release Adapter is a special design quick release weaver rail clamp specifically designed for RC220 and RC500.
It's original design purpose was to convert the Powa Beam Light Bracket to a quick Release option which can be bought with the rail in a complete kit.
Weaver Rail Clamp
SmartRest is a brand by Australian company Eagleye Hunting Gear. The Eagleye HG team are hunting & shooting enthusiast and dedicate their time and effort to design, innovation and pushing boundaries in attempt to create items which enhance the effectiveness of a shooter in the field.