It comes up from time to time, so I thought we could "talk" about it for a bit.
We have two versions of our two-stage trigger.  Both work equally well, although the parts are not interchangeable between them.  That works out well, because we don't sell the NM trigger group parts separately.  We build each set, as a complete set, in a lower before anything else happens to it.  Surfaces are polished (maybe even filed at times), springs are set, weight is verified...then, if it is afor a lower half or complete rifle, that trigger stays right in that same lower to be built further, tested ,and shipped.  If it is for a trigger kit or lower parts kit, it is taken out of the test lower, bagged and tagged, and sent to the Shipping Department.
That said, sometimes they look like they have a little wear on them...that's the fitting and testing. Every 2-stage trigger kit that goes out the door has already been tested in at least one lower.  Fit, function, and pull weight are all verified.
Now the rub.  Tolerances in lowers.  All lowers have tolerance, even ours'. We try to use as close to the call out as possible for testing, to assure that they will work in the majority of lowers on the market.  I say majority, because they won't work right out of the package in all lowers.  we've tried multiple manufacturer's lowers, and most of them are very close to ours, and the trigger kits tend to drop in easily and function just fine.  Some, however, are all over the place  for the pin hole tolerances, both location in the lower and in diameter.  For the proper trigger function, we're dealing in thousandths and ten thousandths of an inch. we've found lowers off by hundredths of an inch on location, and easily off by thousandths on both location and pin diameter.  One of the reasons we use slightly over size pins.  we can make them work in most lowers at that point, with no pin movement...just the trigger and hammer moving on the pins,,,they way it's supposed to be.
But we can't always make that happen in all lowers by all manufacturers.. There's nothing necessarily wrong with the trigger kit or the lower....but physics dictates that they don't play well with each other.  If we have the lower, we can often make a trigger kit work in it.  Without the lower, it's far more difficult because we don't know where the problem is.  Sometimes that requires that a custome rhas to send in his lower and the trigger it he received for us to "fit" them.  Most of the time, the only charge is the customer picking up the shipping.  If it really is a warranty issue, we cut the customer a check for the ground shipment to us (or offer in-house credit), and pay to ship it back. We try not to do anything to the customer's lower, and accomplish everything via the trigger kit components.
Occasionally we do have legitimate problems with our triggers....some times fairly early in their "life" when an edge disappears, and sometimes tens of thousands of rounds later after they are just plain worn out. We take each on a case by case basis as far as repairs go.  we're  just introducing a new maintenance offering where we replace the springs in a trigger kit and touch up any surfaces that need it for a flat rate...not for the new sets, but the ones that have been out there for awhile ands have maybe dropped a little weight and are starting to "feel" different. We don't require them in the lower that they're being used in, but it sure makes it a lot better for everyone when they do.
Early on (a decade or more ago) we had some hammers break, and occasionally still do.  In the old days, it was generally due to occlusions in the metal.  We stopped that by magnafluxing and performing other tests on every hammer and purging any that were remotely questionable. The more recent breakage is more often than not associated with test firing by the end-user with the upper removed and letting the hammer go forward and impact the back of the magwell or bolt stop.  Sometimes it's accidental, and sometimes it's intentional (nothing bad will happen,,.,this guy on the internet said so).  Either is few and far between, but they tend to get blown out of proportion on line when they do happen. I'm still seeing photos from 12 years ago being passed off as "look what happened to a buddy's buddy's RRA hammer this weekend".  We have the original photos from way back when.  We know the guy who posted them before sending in his lower.  He regrets ever posting them  We fixed his trigger group and had it back out to him in less than a day.  He's bought more triggers, lowers, and rifles from us since, but his photos are immortal.
I didn't want this to turn into a rant, and I hope it doesn't come off that way.
if you want/need more two-stage trigger info, this is the semi-official thread to ask or comment and I'll try to provide an answer/solution.  Let's talk about those RRA 2-satge triggers in this thread and see if we can answer the questions and help one another out.
Thanks.
Steve/RRA

I was always satisfied with the feel of the NM trigger on my LAR8. I never really paid a whole lot of attention to it for the first few years of owning the rifle other than noting that it was considerably better feeling than the triggers I had experienced in my service issued rifles in the Army. Then, a couple years later, I decided to become a trigger snob. I began reading reviews for aftermarket triggers, and quickly discovered that Rock River's triggers are at least close enough to many of the aftermarket products available to not need replacing the one that I already had. In fact, most comparisons said that unless you absolutely had to spend more money for a trigger, that the RRA is the best in price.

After nearly a decade of use and tens of thousands of cycles on it, I can confirm that it has been just as durable as any other out there.

Admittedly, my single rifle is a small sample size, but if one bad apple can discourage someone, then my good example can serve to encourage others.

Thanks.
Steve/RRA

I probably have 2K rounds through my PP and have always like the way the trigger feels.  In fact I have not had one problem with the rifle in the 7 years I have had it.

I like mine on my Colt a lot.  As a mater of fact I need to get another one for another Colt.  Which brings me to this question, why are the large pin nm triggers more expensive?  They used to be the same price before.

That I remember, they've always been a little more than the standard model.
Biggest reason is cost.  The tooling to make them cost the same, but whereas we make and sell hundreds of thousands of the standard 2-stage trigger annually.  We don't make and sell anywhere near that number of Sporter trigger kits.
Steve/RRA

You're right and it makes sense, it's just that it seems like the difference wasn't as much. Either way i'm gonna keep my eyes open and try to find one on sale or a used one.

I ordered two of the two stage triggers on sale a couple of weeks ago.  Can't wait to get them!  This holiday shipping situation has slowed down things but all good things take time.

I have two kit guns that are in serious need of good triggers. These are unshootable as is so the new ones will be installed before the mailman is out of sight.

My son bought a RRA upper for a build and he is very happy with it.

I have RRA drop in 2 stage triggers in all my lowers and really like them.


Although I recently strayed and haven't had a chance to check it out.

Bought the varmint triggers for a couple of my RRA's. They come with .001 oversized pins and I have two questions: Can I use the standard pins that came original with my NM 2 stage trigger? If I use the oversize pins and decide to switch back do I use the oversize pins with the NM 2 stage since now the hole will be enlarged by .001 from the oversize pin?

The NM and Varmint versions of our two-stage triggers use the same pins...shouldn't be any issues.
Steve/RRA

Got lucky at the fun show today and scored me a large pin nm for $95

I got my two trigger sets yesterday and it took me about 45 minutes to put them in. I ran into some trouble because the instructions failed me terribly.  turns out that you should actually READ THEM and it makes the job lots easier.

The pins fit a little loose in one of my cheapo receivers but they aren't walking out so far.

Great triggers!  I should have got some a long time ago.

Glad you got them figured out.
Steve/RRA

There's a reason for that old saying: When all else fails.....

I have 3 of the RRA 2-Stage triggers identical models

One goes bang when it wants too sometimes I can feel the second stage some times its just goes bangs sometimes that's unnerving.

I took and put the bad one in the receiver that had the working RRA trigger in and the problem followed and the other trigger worked fine in the other receiver. I went as far as putting it in a 3rd receiver just in case maybe if I try enough receivers I can find one that will make it work right and it still does not.

the one thing I will say about them though Is I don't think its necessary about ware. Its just a occasional dud leaves the factory and that being the case the factory should not make excuses and just fix it. Like I said I have 3 of them this one and the other do not get much use but number 3 does and has well over 2000 rds on it using a extra power spring in a 5.45 x39 rifle and still works like new in fact I am overly pleased with it for being able to pop the hard Russian primers.

just a side note the original receiver it was installed in was a RRA receiver but obviously that was not the problem since the problem moved with it.

Have you ever contacted us (RRA) for technical support or an RMA on it?
Thanks.
Steve/RRA

I emailed about about a year and a half ago and never heard back . then I emailed again while reading this post on the 19th and no one has replied.  I take it I should call?

ok i just went back to the RRA site and looked under warranty and repair. I had been using the "contact" form when I should have read the warranty and repair form where it states to call.

Calling (866-980-7625) is the best bet,,,ask for tech support.
Steve/RRA

I have an older 2 stage trigger that was bought in '07 that lost its first stage. It's a single stage only now.

What do I need to do to get this fixed or warrantied?  

Thanks!

After nine years, it probably won't be a warranty issue (but might be...they consider them on a case by case basis when they come in).  Calling Customer Service or a tech at 866-980-7625 could get you set up with an RMA to get it in here for a repair tech to evaluate and let you know what it will take.  Generally, that is a repairable condition.
Steve/RRA