This is a TROY Bolt Release known as the Ambidextrous, model SBOL-AMB-00BT-00.
The Ambidextrous Bolt Release is an indispensable device that easily releases or holds bolt open with one hand to streamline firearm clearing and reloading after a malfunction. By being ambidextrous" this bolt release eliminates hand changeovers improving control of rifle when in use. Made from hardened aircraft aluminum.
Features:
Ambidextrous
Hardened Aircraft Aluminum
Improved Control
