Geissele Super Dynamic Enhanced (SD-E) Trigger

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Geissele Super Dynamic Enhanced (SD-E) Trigger ‒ 05-167


Quick Overview

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SKU: 39281
UPC: 854014005151
MFR#: 05-167
  • Type: 2 Stage
  • 1st Stage Weight: 2.3lbs.
  • 2nd Stage Weight: 1.2lbs.
  • Total Pull Weight: 3.5lbs.
  • Adjustable: No
  • Recommended Use:  Target Shooting, Precision Shooting
  • Pin Size: Mil-Spec
  • Trigger Bow Type: Flat
  • Weapon Platform: AR15/AR10

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The Geissele Super Dynamic-Enhanced (SD-E) Trigger provides enhanced trigger control and weapon accuracy while maintaining the robustness and reliability of our combat-proven two-stage trigger. The SD-E’s reduced 1st and 2nd stage pull weights result in a trigger with a smooth, light 1st stage take-up and a crisp, candy cane-like 2nd stage break. 

SKU: 39281
SKU 39281
Department AR Parts
Brand Geissele
Daily Deal N/A
Daily Deal Expires N/A
Unit Price N/A
Youtube Video N/A
Free Shipping? Yes
Free Shipping Qty Label N/A
Free Shipping Qty N/A
SKU: 39281

Questions and Answers

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Browse 1 question Browse 1 question and 8 answers
Will this trigger set off hard military primers or just match primers?
mack g on Sep 13, 2018
BEST ANSWER: I’ve used the SD-E with Wolf Gold .223 55gr copper fmj brass case non corrosive boxer primed, Magtech 5.55 OTM 77gr, American Eagle XM855, Hornady TAP FPD .223, Hornady Black and Hornady Varment Express. Several others as well hope this helps. Every time that trigger breaks I smile and am glad I purchased it.


5.0 / 5.0
9 Reviews
5 Stars
4 Stars
3 Stars
2 Stars
1 Star
Stop being stupid and just get it already.
It’s everything I thought it would be and more. Sometimes I cry every time.
June 19, 2019
3 months ago
Badass trigger
I love the feel of the flat bow on this trigger. The 2 stage is great for knowing exactly when the trigger will break, it’s so crisp. I would recommend
June 3, 2019
4 months ago
Geissele consistency and reliability
This is the third Geissele trigger I have purchased and once again very satisfied. I also have the SD-C and this is a little lighter second stage but I really enjoy the feel of both the break and the flat trigger.
March 1, 2019
7 months ago
Geissele SD-E
it's simply one of my favorites.
December 30, 2018
9 months ago
To perfection !
Was on the fence. After install I couldn’t be happier . It’s basically the icing on the cake .
October 2, 2018
11 months ago
Worth every penny
Worth every penny, this trigger is fantastic!! Extremely crisp with very minimal travel after the break, this trigger is perfection. It changes the entire shooting experience, and makes accuracy much faster and easier to achieve.
September 20, 2018
1 year ago
This sd e is my favorite trigger. I would highly recommend it.
September 13, 2018
1 year ago
Awesome, crisp, comfortable
Awesome trigger. I wasn't sure how I'd feel about the flat trigger, as I had never used one before, but I absolutely love it. It has an extremely smooth first stage, and a perfectly crisp, light weight second stage. I would highly recommend this to anyone who is serious about their equipment.
May 6, 2018
1 year ago
Fit perfectly in my PA-10 .308 AR
I went to the range today and tried it out. This is the trigger feel that I always wanted for precise shooting.I could pull up the 2.3-lb 1st stage and release or hold until I liked the windetc. It reacted as a thought. The 1.2-lb 2nd stage would drop once I firmed up the pressure and then as if I had a strong pulse through my finger tip. Very controllable without any rub jerk or distracting feel.

I had read on-line where others had to file some metal off the trigger in order for it to properly clear the PA-10 upper. I consulted Geissele and they provided me with a diagram to use if needed. I did not need to make any changes to the trigger. It went in like any other trigger/hammer. Perhaps this is something that the TAC 10 lower required.
September 14, 2015

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