Stern Defense H2S 2-Stage Drop-In Trigger (Fits AR10/AR15)

The Stern Defense H2S Hybrid is a two-stage drop-in trigger module engineered for AR-15 and AR-10 platforms. It installs on standard mil-spec pin spacing and uses a 6061 billet housing for structural rigidity. Internal components are machined from tool-grade steels and the assembly receives a cold nitride finish for wear resistance and consistent function.

Key Specifications

• This unit fits AR-15 and AR-10 platforms using mil-spec pin spacing.
• The housing is machined from 6061 billet.
• The trigger and disconnect are machined from A2 tool steel bar stock.
• The hammer is machined from S7 shock resistant steel bar stock.
• The finish is a cold nitride treatment.
• The trigger features a semi-flat trigger bow.
• Function is a 2-stage drop-in design.
• Stage feel is a smooth 2 lb first stage followed by a positive 4 lb second stage.
• Overall material composition is steel/aluminum.

Built with machinist-grade steels and a billet housing, the H2S offers a precise, repeatable two-stage pull suitable for precision shooting, PCC setups, and hands-on AR builds where a refined trigger feel and dependable function are priorities. Its drop-in format simplifies installation while the robust internal materials support long-term serviceability.