Geissele Automatics AR-15 Super Dynamic Combat

The Geissele Super Dynamic Combat (SD-C) Trigger is a high-performance, duty-ready upgrade for your AR-15 or AR-10 rifle. Designed with reliability and control in mind, it features a flat-faced trigger for improved leverage and feel, helping you maintain control under pressure while still enjoying a smooth, responsive pull.

This trigger installs just like a standard Mil-Spec unit and fits any .223/5.56 or .308 rifle using a Mil-Spec lower receiver with .154″ trigger pins. Built from EDM wire-cut tool steel and finished in black for durability, it’s made to perform in even the most demanding situations.

Note: Trigger pull weights are approximate and may vary slightly between rifles.

Features:

• Fits all Mil-Spec AR-15 and AR-10 lowers
• Uses standard .154″ trigger pins
• Flat trigger bow for better control and faster resets
• 4.5 lb total pull weight – tuned for safe, confident operation
• Smooth and consistent two-stage break
• Non-adjustable sear design for increased safety margin

Precision machined from tool steel with a durable black finish
The SD-C is a non-adjustable two-stage trigger with a 4.5 lb total pull, giving you a deliberate, predictable break that helps prevent accidental discharges in high-stress environments—perfect for duty, home defense, or tactical use.

Geissele Automatics manufactures confidence, offering quality triggers and components for the warfighter and competitor. They were established in 2004 with the mission to build the highest quality, reliable triggers for competition and their first trigger, the Hi-Speed National Match trigger, was so popular that they were asked by the Department of Defense to produce a select-fire trigger for the United States Special Operations. Again, it was a success and Geissele decided to bring a semi-automatic version to the civilian market for law enforcement and personal protection.