This is a Phase 5 Weapon Systems Trigger Guard known as the Winter, model WTG.
The newly revised Phase 5 Winter Trigger Guard (WTG) is Billet Aluminum and aggressively styled but creates more space in the trigger area. This is a useful feature when wearing gloves or when running other components like the Extended Bolt Release V1 or EBRv2. Includes Allen wrench" roll pin" anti-rattle screw and trigger guard.
Features:
Billet Aluminum
More Space in Trigger Area
Ergonomic Design