Geissele SD-E Super Dynamic Trigger Group Enhanced Version AR-15, LR-308 Two Stage Matte is a firearm component manufactured for platform compatibility and functional operation.
This item is produced using standard machining and material specifications appropriate for its intended platform. Review the technical specifications provided for details regarding compatibility, dimensions, and configuration.
Geissele Super Dynamic Enhanced (SD-E™) Trigger
The Geissele Super Dynamic Trigger is the semi-auto only version of a select-fire trigger that Geissele makes for customers in the U.S. Special Operations community. The SD is a non-adjustable combat trigger, with a stunningly smooth 1st stage and solid 2nd stage built for use in the adverse environment of battle. Suitable for Close Quarters Battle (CQB) and mid-range carbine work, the Geissele SD E is also the perfect trigger for Squad Designated Marksman (SDM) rifles. The Geissele SD-E trigger features tool steel construction with wire EDM cut sear surfaces. Total pull weight is 4.5 lbs (2.5lb 1st stage/2lb 2nd stage). Instructions are included. This trigger features a flat trigger bow for a consistent trigger feel regardless of finger placement. The flat trigger bow is also 0.141″ forward of a standard AR-15 trigger, resulting in an increased trigger reach for proper placement on the trigger finger.
Notes:
Combat: 2-1/2 – 3lb 1st stage, 2lb 2nd stage
Enhanced: 2.2 – 2-1/2lb 1st stage, 1.2lb 2nd stage
Specifications of Geissele SD E Trigger
Product Information
| Pin Size | Small (.154″) |
| Compatible With |
AR-10, LR-308
AR-15
|
Delivery Information
| Shipping Weight | 0.240 Pounds |
Compliance Notice: The purchaser is responsible for ensuring compliance with all applicable federal, state, and local laws regarding ownership and use.

