Pretty cool...addresses one of the major issues with this platform:


This new Mk13 trigger was designed by Geissele at the request of NSWC-Crane. It fits the AI chassis and Stiller action only and is specifically intended for use by snipers. The reason I say this is that because it is non-adjustable, its commercial appeal will be limited. Geissele sets this trigger at the factor and in this case it’s 2-stage and 3.5 lbs. The trigger was also specifically designed to pass Crane’s 5′ drop test unto steel plate with the safety off. This is the first time a bolt gun trigger has passed the drop test with the safety off. Finally, it uses Geissele’s proprietary NanoWeapon coating.

"Pain, we endure...faulty weaponry, we do not."


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Longeye posted:

That is my impression. The ad copy is pretty specific about which action and stock this trigger fits.

Actually, I find it rather vague.  The whole thing about the action is that while the AICS will play nice with a Remington footprint, several aftermarket triggers do not play well with the existing cut-out and require modification.  This is nothing new.  I read this as the Geissele is akin to a factory Remington Trigger profile in that you don't have to remove any material from the chassis/stock like you would have to with some triggers.  To me that explains that aspect.  

Again, I'm not sure what the differences are between the TAC300 and a spec'd MK13 Mod7 action but I'm skeptical that the ability to accept a Remington style trigger has been affected.  

Anyways, it's all rather moot anyways since I could easily see this being one of those things that Geissele has to withhold from the commercial market due to .Gov contract (but then again I'm to understand there are Mod 7 actions and the MK13 Mod 7 stock available for commercial consumption).  

"Pain, we endure...faulty weaponry, we do not."

Not sure if anybody has been tracking this besides me.  Figured I would give some initial insight.

After dodging a lengthy pre-order and a sort of recall the day the first units shipped from brownells...I picked up one of the second-run triggers for a soon-to-be-completed build.

I have to say that even on a non-factory 700 (Impact 737R), the installation was simple and dropped in right at 2.5 lbs total to fire.  While I can't conduct a proper safety buttstock drop test until Manners finishes my stock, a couple of raps with the rubber mallet did not release the sear.  Thus far, I am pleased with the feel of the trigger and the geometry (mind you I'm coming from an AI-user perspective).  More to follow as things progress.

"Pain, we endure...faulty weaponry, we do not."

I grabbed one of the first, "recalled" batch.

As I am not a mechanical engineer, take everything I say with the requisite grain of salt.

  1. The recall is apparently primarily a single stage issue.  Mine is set up for two stage, and on the list to be replaced sometime in the future.  The recall was disappointing, but the way the Geissele folks handled it was top notch.  Their professionalism was refreshing.  Great job here.
  2. My primary reason for replacing the trigger was safety.  My 700 had issues where if  the trigger was pulled while the safety was half off, the sear would release when the safety was pushed off fully.  The new trigger does not do this (I tried every hair brained thing I could think of).
  3. The old trigger wouldn't release the firing pin unless the unless the buttstock was SLAMMED into the ground.  By slammed, I mean that I was  holding the rifle overhead with two hands and then driving the buttstock into the ground while dropping into a squat (the scope was removed for my exercise in curiosity / stupidity.)  I tested the Geissele the same way with no effect until I was hitting so hard I was afraid I would damage the aftermarket stock (of note, the trigger is set up as a two stage,  I cannot say that it made a difference.)
  4. I also dropped the rifle from about a foot onto its muzzle into a kitchen sized trash barrel  with 2x4s lining the bottom, with no effect on the stock trigger.  Fearing crown or barrel damage, I discontinued the test.
  5. The feel of the trigger is just great. Clean and smooth, the first stage is long enough to be of value while the second stage breaks cleanly.  I haven't felt a decent two stage on a bolt gun before this, it is a delight.  It is light years better than the stock trigger.  
  6. Visually, the trigger appears immaculate (remember, my opinion on this is as someone who is neither a machinist or mechanical engineer)
  7. Installation was standard for the R700, very easy.

My assessment, as someone whose bolt gun is range use only, I am rather impressed. 

Timney or Jewell might have given a lighter or crisper trigger, but I doubt that either would benefit someone of my skill.  The two stage trigger has a huge benefit when switching between different guns.  If I shoot a heavier trigger with some travel, and then switch to a light single stage, my chance of negligent discharge goes up dramatically (none of the rounds have struck anything other than the backstop or target) .  The two stage alleviates the issue and has a very "deliberate" quality which I appreciate.

Once again, the above is written as someone who will likely never use a rifle professionally, and who is the wrong type of  engineer to give a meaningful assessment of the trigger mechanically. 

I think there is a true lack of "duty-grade" bolt gun triggers that don't suck, and don't feel awful...especially 2-stage.

I know Jewell's aren't 2-stage and are the hair-trigger standard, but I've seen a couple shut down from being dirty and they weren't drop-safe.

Tried the Tubb T7T...not really what I was looking for...skinny trigger shoe, overly light first-stage.  The trigger and I just didn't work well together; not really suited for tactical shooting despite being a little tougher to seize up than the competition (per Tubb).  

Huber's are highly regarded but they are more of a "set" trigger.  If you take up the first stage and let off, you need to re-cock the action or it's not going to feel right when you pull the trigger again.  That's a no-go for me.  Nice triggers, but not what I'm looking for

Timney's are ok.  I see a lot of loose trigger (side-to-side) play on the triggers that I don't care much for.  

I've wanted to try the Xtreme 22 CG Jackson's as I was under the impression that they were in the Mk13 (or were at one time?).  Advertised as drop safe and the maker of the adapted AI Match trigger assembly...this was going to be my other consideration if the Geissele didn't work.

Cadex would be my 3rd consideration; I like the idea of the adjustable shoe and the geometry.  No idea what the internals/inherent safety are like.  Kinda pricey for said mapley goodness.

I see a lot of people on the hide are all about TriggerTech and Bix & Andy triggers, but I have never tried 'em.  Only the later has a 2-stage. 

"Pain, we endure...faulty weaponry, we do not."

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