Geissele SD-E Super Dynamic Enhanced Two-Stage Flat Trigger AR-15

The Geissele Super Dynamic Enhanced (SD-E) is a two-stage flat trigger for the AR-15 platform, designed for semi-automatic rifles. It is intended for close quarters battle, mid-range carbine work, and squad designated marksman rifles, and is described as a non-adjustable combat trigger.

The trigger is made from tool steel with wire EDM cut sear surfaces. It has a flat trigger bow that is positioned 0.141 inch forward of a standard AR-15 trigger for increased reach and consistent feel regardless of finger placement. Total pull weight is 4.5 pounds, with a 2.5-pound first stage and a 2-pound second stage in the combat configuration. The finish is black. Installation instructions are included.

• Brand: Geissele Automatics
• Model: Super Dynamic Enhanced (SD-E)
• Type: Two-stage flat trigger, semi-automatic only
• Fits: AR-15, AR-10 mil-spec
• Material: Tool steel with wire EDM cut sear surfaces
• Finish: Black
• Total pull weight: 4.5 lb (2.5 lb first stage / 2 lb second stage)
• Trigger bow: Flat, 0.141 in forward of standard AR-15 trigger