This is a hard post to put together, because I don’t what to sound like a salesman, but unless you’re familiar all the 2-Stage triggers out there, and how they work its hard to appreciate the Geissele trigger.  Bill really thought of everything, and from what I’ve been told, what he didn’t think of the AMU suggested and he listened!
In short, I would describe it as having the adjustability of a Jewell, with the simplicity of a KAC.  If that makes sense to you, great. If not, let me know.  



I’ll start off with my concerns with the trigger.  I’ve been a competitive High Power Shooter for some years, and  I’ve see what triggers people choose, and I’ve seen them adjust them. Most folks know what they’re doing with the "match triggers". Bringing this trigger to the defensive carbine world, where there is limited exposure to match triggers may be a problem.  I’m afraid too many will see all the screws and start turning all of them in different directions.   I think a sear adjustment and 2nd stage weight adjustments are an accident waiting to happen for those who won’t take their time to read the directions, and pay attention to what they’re doing.  I’ve had more than a few adjustable triggers brought back to me because   the owner adjusted the sear engagement into a single stage trigger.
I’m almost expecting to hear complaints posted on-line because the trigger wasn’t adjusted properly, and no one will blame themselves, it will the design of the triggers fault….
If it were up to me, I’d red loctite the sear adjustment screw in place and epoxy the screw before I shipped them to keep people from messing them up.  The slight adjustment in second stage pull is a safe adjustment to make, and sufficient for most to be happy.  

The only other thing I think the defensive carbine crew may have concern over is the over travel screw.   If that screw puts ANY doubt in your mind at all, just take it out and throw it away.  Its nice to have if you’re going to use it, but you’ll never know if its not there either.





The design is like the KAC, in it used the trigger pin to hold the disconnector in place, so there are no extra pins to worry about.



I’ll start will all the obvious negatives of a fancy trigger in a non match AR.
Too many parts, a total of 8 pieces not counting the hammer/trigger springs/pins.





The neat part is, there is not much that can go wrong will those pieces, as there is no place for them to go.

The disconnector is held in place by the trigger pin, and is incased in the raised walls of the trigger body.  The disconnector spring, not only fits into a notch in the disconnector, but is also held in place by a follower. The 2nd stage weight screw, touches the follower, not the spring. So if that screw happened to come out, it wouldn’t matter, its not what’s holding the spring in place.

The sear engagement screw, is accessed through a cover with a hole to make sure it cannot come out.








Here’s the disconnector fit into its little nook





The only remaining issue is how well will it hold up? Too soon to tell, but from the looks of it, with the numbered parts, its obvious it is not a production trigger.   I’m looking at the installation instructions for the KAC trigger reading “The sear front hook may need to be filed or stoned in the area shown”  - I can promise you NOTHING will be unfinished  on these triggers.  If you have a KAC and think its nice, you’ll be extremely impressed with the Geissele, and forget all about the KAC.

The only 2 screws to be of any concern, like the KAC, can be held in place with loctite or nail polish.  Even without the added glue, they seem to turn real tight.  

I put my trigger in my AR10, and it’s set at 3lbs.  The first stage is 2lbs.8oz, and the final stage brakes at 8oz. That’s where the adjustable sear engagement kicks ass if you take the time to do it right.  I have only had it for a few days, but after countless dry fire, and 62rds, nothing has changed.  I’ll keep you updated if anything changes, but I have a lot of confidence in this trigger.


The price is way up there, but when you hold one, you’ll know why.  No expenses were spared in the building of this trigger, and when you see the what I like to call the “surgical pack” it ships with for installation, you’ll know it was money well spent.

Quoted: It sounds like the average shooter would be better served having you drop it in and make a basic adjustment as opposed to screwing around with settings they were not familiar with.

I'll have to check with Mr. Geissele, but I think the trigger comes well tuned out of the bag.  Just drop it in and go.  If you want to start adjusting, do so after you read the directions and have determined "what" part of the trigger you want to adjust.

nevermind

Quoted: What does this trigger cost?

$279.00

nevermind

I have never heard of a KAC needing to be stoned or filed.

Me either, but it is written in the instructions.

What all does this trigger offer that KAC does not?

Availability,  customer service, Over travel adjustment, a much faster lock time.

I noticed its ad said it sets the trigger 1/8" further forward to reduce cramping of the trigger finger.  That seems nice but I cannot imagine a trigger that is more crisp than my KAC.

The overtravel screw is nothing more than a screw through the front of the trigger which protrudes out to contact the receiver, eliminating over travel.

I just replaced the KAC in my AR-10.  And from a "precision rifle" standpoint, the difference is night and day.  I also have a KAC in my carbine which has several thousand rounds through it - including a 3 day Pat Rogers class, with not a single issue or malfunction, i.e. going tits up.

Quoted: Which KAC trigger are those instructions from?

June 1995

How do they compare to the McCormick units?

I have never played with a McCormick, but a friend in Southern OH, has one with several thousand rounds through without any complaints.

Thie trigger is more for the do it all carbine.  If you have a Match Grade barrel and a $2K ShortDot, that 8lb. stock trigger is going to be a crutch.

nevermind

Quoted:for $279.00 I can almost have another upper if not another 511 Eotech, great work though. Just out of my price range, I will love my mil-spec single stage trigger a little longer.

Or 1000rds of practice ammo.

nevermind

Quoted: I have some black stuff coming out of my KAC trigger screws.  Certainly appears to be melted nylon.  Is it?  Is this why KAC failures due to moving screws are rare?

I'm not sure, I've never had any trouble with my KAC, or noticed any black stuff?

Does the nylon on the GA trigger screws make the locktite work less effetively in any way?

Time will tell, and right now the ony triggers getting extended use are with Sinisters crew.  If stuff starts falling apart, I'm sure he'll let us know.

Can you tell the difference in length of pull with the trigger installed?

Yes, I can.

What real world benefits does a faster lock time provide?

Less time to screw up a shot between when you pull the trigger and when the hammer strikes the firing pin. What's your real world? Mine is poking holes in paper at long distances, in as tight a group as I can get.

How much faster is the lock time than the KAC in thousandths of a second or whatever figure you would use to measure it?

Taken from a post by Bill Geissele
>>>>>>>>>>>>
My trigger’s lock time has been decreased with a lightened hammer that has a unique “IBeam” profile that decreases hammer mass while retaining strength. A standard hammer has a lock time of about15ms. In comparison, lock time with my trigger has been calculated  at 8ms.
>>>>>>>>>>>>>>


I do not know in comparison to the KAC, or how this is calculated.

Will GA offer a full auto version?

taken from another post by Bill - We are not licensed (yet) to do any select fire design or manufacture. When the request comes in from Uncle Sam we will approach this.

Bigbore, thanks for posting this,  I'm sure this is a well designed trigger, but I have a few comments/questions.   Please dont take this as an attack on the product or yourslef,  it is NOT!!

1.  What type of shooter are you trying to market this for?
2.  Why such a high price? $279,  JP triggers are half this and Chip Mccormicks are about $180.
3.  Dirt pounders cant tell that your pic is just oily and poor light,  looks to the amateur eye as rusty
4.  What makes this better than the KAC(which sounds like cock in british), CMmCormick, JP, Rock river?
5.  Availability?  this is killing the Mccormick trigger more than anything.
6.  and for whoever wants to know why this was posted here rather than 10-8,  well 500 people are there, patting each other on the back because they have a badge,  versus 7000+ people here online right now!!!   simple math.  

I'd like to see the trigger first hand before I'd drop $279.

I'm not sure what the basis of this argument is?  Use what works for you and your operating parameters.

Information exchange is a two way street.  "Gun Fighters" can learn from competition shooters, and competition shooters can learn from "gun fighters."  Every class I attend I learn something, and I'm sure students more on the "gun fighter" side of things learn a thing or two from me.  Likewise when my LE or Military friends attend matches I am sure they learn something, and if people pay attention something can be learned from them as well.  This exchange of information can make us all better shooters regardless of how we employ or equipment or skills.  It can also lead to enhancements of equipment over time, which as Sinister said is not hard to track at all over the past 15-20 years.

1.  What type of shooter are you trying to market this for?

Anyone who wants another trigger option.  There is a trnd right now for "do it all" carbines.  If you're going to run match ammo, match barrel, and maxnified optics, another option in the triger dept is a good thing.   This trigger was chosen by the USAMU for proof of concept on the XM110 Semi-Auto Sniper System.


2.  Why such a high price? $279,  JP triggers are half this and Chip Mccormicks are about $180.

Why is a Rolex more than a Timex?  All other triggers to my knowledge have milled sears which require stoning.  These sears are cut with a wire EDM then hardened.  The EDM produces a perfect finish....not too smooth so that the trigger is 'gummy' and rough enough so that lubricant is trapped in the little microscopic valleys of the sear surface.

RRA: Decent, but not adjustable and there are quality issues.  Can be made to perform with fitting.

This triger has individual adjustments for each trigger parameter.  If you want more 2nd stage...put it in.....the sear does not change.  More overtravel....just turn the screw...the weight will not change.


3.  Dirt pounders cant tell that your pic is just oily and poor light,  looks to the amateur eye as rusty

my bad

4.  What makes this better than the KAC(which sounds like cock in british), CMmCormick, JP, Rock river?

KAC -  the adjustments do more that one thing at a time i.e: one screw adjusts the overtravel and at the same time trigger weight.  The other screwadjusts sear engagement and weight. With a system like this you will always have to make a compromise.  
The hammer is heavy with weight concentrated near the end....slower locktime.  



5.  Availability?  this is killing the Mccormick trigger more than anything.

Now, with real customer service.