The WOT has a patent-pending, spring-locking bar that makes the trigger unique. The trigger’s hammer is reinforced with Hardox steel, which due to its toughness, copes with shocks, jolts, bangs, ricks, and jabs day after day. The material allows the WOT to take the constant beating of the bolt carrier group (BCG) as it cycles back and forth in an AR-15 rifle or pistol.