Huber Concepts Stainless Steel Match trigger for Mosin Nagant review

Trust me If you like, or even can tolerate the stock trigger in any of your guns, then don’t shoot anything with an upgraded trigger. That is, unless you are […]

Huber Concepts stainless steel Match Trigger review - installedTrust me
If you like, or even can tolerate the stock trigger in any of your guns, then don’t shoot anything with an upgraded trigger. That is, unless you are prepared for the consequences. A good trigger will make you loathe most stock triggers. Of course, it will likely also make you a better shot as well.
Shortly after our Big AR15 Trigger Test I got into Mosin Nagant rifles and kicked off the Mosin Modernization Project. The triggers on both of our donor Mosins had unusually long, heavy, gritty pulls. They were bad, but they felt even worse compared to the wide range of very nice AR15 triggers we had just tested.

Desperately seeking sears
I immediately emailed my contact at Timney and they put one of their Timney Triggers Mosin Nagant trigger in the mail for our “Modern Mosin Sniper build“. However that left the “Modern Mosin Hunting build” needing a trigger. A bit of online research brought me to the website of Huber Concepts, who offer a few different Mosin Trigger upgrades. A couple of notes to the owner, John Huber, and he agreed to send a trigger for the Hunting Mosin build.

Fit and finish
That is “finish”, not ” Finnish “. Although the Huber Concepts Stainless Steel Match trigger for Mosin Nagant does remind me a bit of a tuned Finnish M39 trigger.
Huber Concepts sent the polished Stainless version of their match trigger. It appeared to have had extensive polishing on most surfaces. It fit perfectly and looks great.

Installation

Huber Concepts stainless steel Match Trigger review - Trigger install partsInstallation was pretty simple, using the original sear and trigger spring. Since the Huber Concepts Stainless Steel Match trigger has a small roller to allow smooth movement along the trigger spring as the Huber trigger is pulled, I also lightly buffed the contact surface on the sear spring to remove some transverse machining marks that made the trigger feel a bit rough where the trigger rolls across the spring.
The trigger itself fit and functioned fine in the 1943 Izshevsk 1891/30 barreled action. However, once the action was installed in the ATI Mosin Nagant 7.62x54R Monte Carlo Stock it was very difficult to pull the trigger. I eventually figured out that the taper at the mid point of the Huber trigger was interfering with the trigger hole in the stock. Removing a strip of stock material from each side of the trigger well about 1/4 inch wide and deep, and 1/2 inch long allowed the Huber trigger to move without restriction. It is worth noting that installation in an original Mosin stock would NOT require any visible modification to the stock. Depending on the cut of the trigger well, it may not require ANY inletting at all. Unlike the Timney Triggers Mosin Nagant trigger, which requires inletting along the right side of the receiver for the safety selector.

 

Mosin_upgrade_ATI_stock (17)

Rough contact surface on the sear spring

Huber Concepts stainless steel Match Trigger review - polish sear

Polishing rough sear spring contact surface

Huber Concepts stainless steel Match Trigger review - adjustment screw

Silver piece forward of the sear holds the trigger adjustment screw

Drop test
Any time I do trigger work I drop test the firearm with and without the safety engaged to be sure that an accidental discharge won’t happen if the gun is dropped. This was especially important since I had bent the sear spring in a couple of places to lighten the trigger pull while still providing sufficient sear engagement. At least, I though it had sufficient sear engagement. It took about 8 iterations of failed drop test, removing and making bend adjustments in the sear spring, reassembling and retesting before it would pass a drop test from 4 feet consistently. Most folks say to drop from 3 feet, but I am an over-achiever.

The Huber Concepts trigger also has a small Allen screw in the top which can be turned with the Mosin bolt removed in order to adjust pre-travel. For a benchrest gun I prefer very short pre-travel. Since this installation is in a brush gun, I opted for a bit longer pretravel.

How it feels
The Huber Concepts Stainless Steel Match trigger, as I configured it with a little pre-travel, feels a bit like a two stage trigger with a short first stage.
Due to the design of the stock Mosin sear spring, trigger pull force increases gradually once the initial pre-travel is taken up. The break is crisp and reproducible, so you quickly learn and know exactly when it will break. Once my rough sear spring surface was smoothed, the Huber Concepts Stainless Steel Match trigger has been exceptionally smooth with no gritty or grabby feel.

No surprises!

Over the years I have heard a lot of people instruct that for precision shooting the shooter must be surprised when the trigger breaks. I think the idea is that you are less likely to flinch if you don’t know when the shot will happen. I have always struggled with the concept of a surprise trigger break. I want to know exactly when it will break since I can’t hold a rifle as still as I would like. As I breathe, as my heart beats, as I naturally move around a bit… since I never have been able to hold COMPLETELY still… I have found that I need to try to time my shot to the natural minute oscillation of the barrel. If I don’t know when the trigger will break, then timing the shot for when the aim point is aligned becomes guesswork. So, counter to conventional wisdom, I want a trigger that will break when I want it to, not at some random time that surprises me.

When the Huber Concepts Stainless Steel Match trigger was delivered it came with a several page write up about how the trigger design was mathematically designed to improve the shooter’s timing. Got to be honest here… I felt like I was back in high school math class and quickly gave up on trying to make sense of it. I have no doubt that the math concepts noted in the paper are valid, I just don’t really care about that level of detail. I just want to know when the trigger will break. It wasn’t until I met with Kris from Huber Concepts at SHOT Show that our discussion led me to understand that the complicated explanation of “timing” might be summarized as knowing when the trigger will break. So, long story short, the Huber Concepts triggers should make a competent shooter more accurate by virtue of the predictable, clean break.

Huber Concepts stainless steel Match Trigger review - post upgrades

Sighting after the upgrades

Field test results

Unfortunately, the Huber Concepts Stainless Steel Match trigger upgrade was not done in isolation. Check out our Modern Mosin Modernization project – Modern Hunting Mosin for all of the other upgrades that were made. The sum of the upgrades improved overall performance of the old Mosin considerably, but I am unable to attribute exactly how much was due to the Huber Concepts Stainless Steel Match trigger. To test this more objectively I have a quick trigger swap back to the stock trigger sometime after the rifle returns from Hillbilly223, who has it for some Cerakote artwork. While I have polished the contact surface on the sear spring to smooth out the pull and bent the spring to lighten trigger pull a bit, I still expect it to show some difference.

Overall

The goal of this upgrade was a trigger with a lighter, more predictable pull that had adjustable travel so we could fine tune it for target shooting or hunting. We did not require that the trigger be a temporary installation with no permanent modifications to the rifle, but consider that a bonus. The Huber Concepts SS Match Mosin Nagant trigger met these goals very well. The Huber trigger is a huge improvement over the fell of the stock trigger with a MUCH lighter and smoother pull and clean, predictable break. The minimal inletting to the trigger well of the ATI stock is a hidden permanent modification that we don’t mind.

Gear Score
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The Huber Concepts SS Match trigger is an easy upgrade that improves the ability to shoot your rifle accurately.

About Jeff

Jeff is the Editor in Chief of Gear Report and a National Shooting Sports Foundation Media member. He reports on the outdoor industry, reviews gear for camping, hiking, shooting, hunting, paddling, backpacking and other active pursuits. A USAF veteran, Jeff earned a MBA in Marketing and Health Services. He specializes in consultative selling and internet marketing. As the VP of BD & Marketing, Jeff provides sales and marketing leadership to MGECOM, Inc. and helps http://MGECOM.com acquire new clients in need of solutions for online merchants in need of Affiliate Marketing program management. Jeff founded and manages Cress Sales & Marketing LLC, offering online sales and marketing consulting and services to online merchants and service providers.