My Parts Bin AR10’s mil spec-ish trigger certainly needed an upgrade, so when Dan said he had a new AR trigger to review, I was first in line.
In went the Bushmaster’s new DM2S Designated Marksman 2 Stage trigger. It turned out to be a solid upgrade.
The two-stage trigger is far and away the most popular version for ARs, and that seems to be for “working guns” as well as more precision rifles. Bushmaster — which is now owned by Franklin Armory after it was purchased in the Remington bankruptcy — bills this as the later, playing off the military parlance of designated marksman (DM).
The Squad Designated Marksman (SDM) Program was one of the best ideas to come (back around) out of the US Army and Marine Corps in a long time.
The general idea was to get at least one shooter in an infantry squad more capable at taking precision shots out to 600 yards with their service carbines or with rifles very similar to their service rifles. These rifles were often outfitted with longer barrels (18-20″ for the 5.56NATO guns), magnified optics, free-floating barrels, a bipod, and sometimes had improved triggers and other precision enhancing modifications.
It was a great idea, and one that stuck with a lot of folks far beyond just standard infantry units. Eventually, most folks dropped the “S” and the shooters became the “DMs” and their rifles the “DMRs”. Bushmaster is playing off this idea with their Dedicated Marksman 2 Stage trigger, or DM2S.
The Bushmaster Dedicated Marksman 2 Stage Trigger certainly lives up to its name.
Installation was just like a MIL-STD trigger, and required no specialized tools. A couple of pins and some wiggling and 5 minutes later the whole thing was done.
After installing the trigger, I tested the pull weight on my Lyman digital trigger scale. The pull measurements were: 4.0lbs, 4.0lbs, 4lbs 1.0oz, 4.0lbs, 4.0lbs. That’s some outstanding consistency.
After spraying a little CLP on the trigger and taking 50 fast shots through the rifle (ammunition is hard to come by), I also just cycled the action a couple hundred times in order to see how that affected trigger feel, weight, and to make sure it was durable.
Finally I opened up the gun, pulled the bolt carrier group (BCG) out, loaded up the hammer, making it ready to fire. I put the gun back together, minus the BCG, put the rifle on SAFE, and bounced the butt stock on the ground a dozen times. The hammer never fell.
At no point did the trigger fail to fire, hand up, or cause the hammer to fall than it was supposed to. In short, it performed perfectly well.
The final feel of the trigger was almost exactly like it started, but with an average of 4oz lighter.
I was genuinely surprised with how this trigger felt. Let’s be honest, most people don’t really associate Bushmaster with the words “smooth”, “crisp” or “precise”. The DM2S is all of those.
The intentional slack of the first stage of the trigger is clean, with no squishiness or grittiness. After the take up, there’s a solid wall and a clean break. The reset is short, tactile, and easy to find over and over again.
This is one of the better new AR triggers I’ve shot in a while. At a penny shy of $130, it’s right up there in expense with a lot of high-end triggers, and a little more than some others. The only thing it doesn’t have on some of those is an even lighter trigger pull user serviceable adjustments.
Specifications: Bushmaster DM2S Designated Marksman 2 Stage Trigger
Made in USA
Curved Trigger Bow
Mil Spec Pin Size
Rating (out of five stars):
Overall * * * *
Bushmaster, long known for decent enough mil-spec guns, has produced a great higher-end two-stage trigger aimed at precision ARs. I was genuinely surprised at how well they pulled this off, especially for a trigger that was easy to install and durable. The lack of adjustments and only an option for a curved shoe keeps this trigger from 5 stars.
Trigger Review: Bushmaster DM2S Dedicated Marksman 2 Stage Trigger is written by Jon Wayne Taylor for www.thetruthaboutguns.com