Geissele Automatics Super Semi-Automatic Enhanced SSA-E Two Stage AR-15 Trigger .154"

Manufactured by Geissele Automatics
MPN: 05-160
Manufactured by Geissele Automatics
217 Reviews

In Stock

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The Geissele SSA-E trigger installs in your lower receiver in the same way that a Mil-Spec trigger is installed. It uses a standard .154” trigger and hammer pin so it will fit in any Mil-Spec stripped lower receiver. It features a curved trigger bow that helps to keep your finger in the same spot while pulling the trigger, allowing for better trigger control and accuracy. Not only does it work in 5.56 or .223 AR-15 rifles, but it works in .308 AR-10 pattern rifles. Each trigger is precision EDM wire cut from heavy duty tool steel with a durable black finish giving you the reliability and durability you can depend on.

  • Uses Mil-Spec .154” trigger pins for maximum compatibility with lower receivers
  • Works with 5.56/.223 and .308 AR pattern rifles
  • Designed after the same trigger used by U.S. Special Forces
  • Smooth two stage 3.5 lb. trigger pull
  • EDM wire cut from heavy duty tool steel
  • Great for precision shooting and reliable for home defense/duty use
Note: Trigger pull weights are approximate and may vary slightly between rifles.

When building or upgrading your AR-15 rifle, one of the most important components is the trigger. There are many triggers out there so you must ask yourself what are you are going to do with the rifle. Are you going to use it for plinking at the range, home defense, competition, or long-range precision shooting? The answer of this question will help you to understand what trigger you will need. The Geissele Automatics Super Semi-Automatic Enhanced (SSA-E) Trigger is designed to be used in each of these scenarios. It is built off of the chassis of the Geissele SSA Trigger while providing the enhanced trigger control, weapon accuracy, and reliability of a two-stage trigger. It features a reduced first and second stage pull weight and crisp, consistent break so that you can build muscle memory to know exactly when the shot will be fired every single time. This results in a trigger that is excellent at long range shooting and is still reliable enough to be used in a home defense or duty gun. The Geissele SSA-E is a great do-it-all trigger that will enhance the capabilities of your AR-15 substantially.

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.
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BrandGeissele Automatics
Drop InStandard Assembly
Manufacturer.Geissele Automatics
Trigger BowCurved
TypeTwo Stage
California Prop 65 warning

 WARNING: This product can expose you to chemicals, which are known to the State of California to cause Cancer and Reproductive Harm. For more information go to

Ratings & Reviews

217 reviews


2 Part Review


2 Part Review:1) Primary Arms is a great company. A+2) SSA-E Trigger: This is a very nice, high quality trigger but it may not be the best choice for a new shooter or an untrained shooter. It is VERY light compared to standard AR trigger. It breaks crisp and clean, the same every time.It can easily be shot as a single stage trigger - just pull and you dont even feel the stages. It is a soft, clean, single-feeling pull. But, if you need to take a more precise shot, the 1st stage wall can be a huge benefit, along with the 1.2 lb 2nd stage break.Overall, I love this trigger. I have it mounted on a DMR type rifle with an 18" barrel. My shot groups improved 1/2" or more after I installed this trigger!I installed it into a Stag lower in about 10 mins, very easy. There are several youtube videos if you have any problems.If have a 'combat' rifle then maybe consider the SSA version. But in the end, it is personal preference.



A lot of reviews said get this trigger and you won't regret it.. All I can say is, they were right.

Top of the line with no pain


All other match 2 stage trigger need to be played with to get them right and it my fail from loss parts and screws. Not this one. I have found One thing Part for the rest of your lower. If you got a DPMS lower parts kit will not work with this trigger. The saftey is make to large to fit with the trigger.

Great trigger


Awesome price and the best trigger! Outstanding service with delivery!I couldn't be happier.

Win! Win! Win!


Awesome product at a great price with lightning fast shipping!

ssa e


Awesome trigger . Only 100 round down with it , so far so good.And as always PA is greatWill buy again.

Great deal!


Awesome trigger!

A trigger to fall in love with!!!


Be warned - you will want to include this trigger or an SSA in your next build. Or upgrade your existing AR with one. You can't go wrong.



Been holding off on getting one of these for my DMR but PA had a fantastic sale over the 4th ($196 with S&H). Yes, it's a little on the high side but once you shoot one you will never go back to a creepy, gritty stock trigger. Installation took about 10 minutes. Highly recommend watching the YouTube video from Mr. Geissele if you are not familiar with how to remove and replace one. Video is a little longer than some of the other videos out there but worth the time. 2nd stage is light and crisp but I find it very predictable. Groups have tightened up considerably. I now own two Geissele's purchased on sale through PA. They have the best deals I have been able to find and run them fairly often. Shipping is also very fast even when using USPS.

Geissele Trigger


Best price I could find on the internet. Shipped immediately - great service.