TFB Review: MDT ACC Elite Chassis System with Bergara B14-R 22LR Rifle

First Impressions & Fitment

The ACC Elite comes in looking serious, as in all business, no fluff. At first glance, you’ll recognize the familiar DNA of the original ACC, but nearly every line and control surface has been rethought with competition in mind. Even the boxing of the components kept the Canadian designers busy, and they did a good job of delivering a professional and exclusive experience.  

Out of the box, the chassis is beefy and well-machined, with a Cerakote finish that’s both attractive and durable. MDT’s quality control remains top-tier; they certainly seem to know what they’re doing. There are no burrs, and almost no machining marks (and none in visible and critical areas). We’re talking tight tolerances and a flawless bedding interface for the Bergara (Remington 700 interface).

Fitting the Bergara rifle into the ACC Elite was seamless, and the action dropped in with no slop. Torque it down and you're in business. I considered bedding the rifle, but because it’s just a demo, changes downstream are very likely, so I didn’t. All in all, I remember the building of this rig as a pleasant experience without too many challenges.

Let’s have a look at the pieces of metal below.

When it rains, it pours.

Me and a friend put the MDT on the operating table, followed the instructions and built a rifle with premium components. This is a 22LR, but we still want it to perform to the highest level. The problem was that the Bergara B-14 was shorter than the forend and didn’t look that cool of a rifle, but we solved that with a suppressor.

Last summer’s highlight, suppressed 22LR plinking on the farm.

We had to do some minor trimming with a Dremel, but not on the chassis itself.

Balance & Weight Tuning

The original ACC’s integrated weight system was a game-changer, and the Elite expands on that with even more modularity. The chassis weighs about 6.10 lbs, distributed across the forend, buttstock, and midsection. That kind of mass, when strategically placed, transforms recoil management and muzzle behavior, and you can also fine-tune the balance with optional weights.

Now, you may think what I am talking about since this is a 22LR, but I have tried some of my friend’s ACC Elite chassis in larger calibers as well.

Ergonomics & Adjustability

The ACC Elite’s ergonomics are where MDT shows its deep understanding of competition shooting.

Vertical Grip: A fully adjustable MDT Elite vertical grip comes standard. I already use this grip on another precision rifle, and it’s among the best I’ve used. You can dial in the palm swell, trigger reach and so forth. The chassis is compatible with AR-15 style grips, and the MDT Vertical Grip Elite with connector bar is included.

Cheek Riser & LOP: The tool-less adjustments are intuitive and rock-solid. Once set, nothing moves — even after dragging it across a rock pile. I would presume that future model(s) will have the possibility to change the Length Of Pull during the course of fire in an easier way.

Bag Rider & Buttstock: The rear section is optimized for support bag use, with a generous flat surface and a low-profile hook. Coupled with the integrated weight options, the rear of the rifle feels anchored during prone stages.

Barricade Stop: MDT added a built-in barricade stop up front that bites into surfaces without marring them. It’s subtle but effective, especially on slick steel or angled PRS props.

Below: Getting the thumb-stop in place.

Forend & Accessory Mounting

One of the ACC Elite’s biggest strengths is its Extended ARCA forend, which stretches the entire length of the chassis. Whether you’re running a bipod, tripod, or a plate, you’ll find the balance point you need.

The forend also includes QD sling mounts, M-LOK slots at multiple angles, and compatibility with MDT’s own line of interior weights. You’ll appreciate how customizable this platform is.

In the Field – Match Performance

As I mentioned, my friend and I used this rifle to explore its possibilities, and we also used it whenever friends came over, so they could try. These friends are everything from beginners to people who would easily win the local matches. In every environment — rain, dust, heat, and cold — the chassis has performed flawlessly. It’s very sturdy and well-built.

The LRA Sendit Electronic Level can be seen below, (on green) and it’s an excellent tool. I love devices like this, and this one is highly recommended.

Below: The MDT ACC Elite with a Bergara 22LR and the new Schmidt & Bender 6-36x56 PM II High Performance on top.

What stood out most is how confident the system feels. You can lean into props, torque the gun hard, and it never shifts or wobbles. It’s a true "set it and forget it" chassis.

Spuhr’s QD mount and the MDT SendIt.

I love things like this. As you build, you get a little encourage-mint from MDT.

It’s designed to be the final step between a great shooter and a podium finish, and while not all will be able to get there, MDT's chassis is not something you could blame. I really like MDT’s slogan “All That's Left Is To Train”...

Here’s a direct link to the MDT ACC Elite: https://mdttac.com/ca/acc-elite-chassis-system

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