The Geissele Super Dynamic Enhanced (SD-E) is a two-stage trigger designed for precision shooting in AR-15 and AR-10 platforms.
- Part Type: Two-Stage Trigger Assembly
- Compatible Firearms: AR-15, AR-10, and other AR-pattern rifles (mil-spec lower receivers)
- Material: Tool Steel
- Finish: Nickel-Boron Coating
- Pull Weight: Approximately 3.5 lbs (2-stage)
- Installation: Drop-In (gunsmithing knowledge recommended)
- Includes: Trigger assembly, hammer, springs, pins










