Ultimatum HMB Actions

4 customer reviews


The HMB actions are 2 lug 90 degree throws and 700 footprint!

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We would like to introduce you to our newest line of actions.

When IBI took over Ultimatum Precision, we immediately started acquiring the machines needed to make all of our actions. Wire EDM’d raceways?   Yes sir!

Every HMB action features:

Wire EDM’d bolt raceway.

Convex bolt face(to match a concave chamber face) for easy feeding.

Notched feed ramp for those that like to load LONG.

A 2 lug, Remington 700 footprint action

Hard anodized 20 MOA rail

Pinned recoil lug (included) .

Lefty versions are being programmed as we speak but NOT available just yet. Coming soon!

The stainless steel ULTIMATUM HMB actions come in several finishes!

#1. DLC /TiN coated

Every HMB that is DLC/TiN coated has a super slick, drag free cycle. DLC stands for diamond-like carbon (DLC) coating. It is a PVD (Physical Vapour Deposition)

Often it is used on cutting tools to add wear resistance and to reduce friction between mechanical parts.

Our DLC’d HMB action raceways are coated in Titanium Nitride(TiN) so when you open the bolt you will see a gold raceway.

TiN is also very hard.


#2. Polished Stainless

HMB’s are available in polished stainless steel with black highlights!

The complete bolts are still DLC coated black, the rail is black and the recoil lug is also black.

It looks very sharp!


And we have one Chromoly Steel version available also!

#3. Nitrided Chromoly Steel

We wanted to offer a nitrided version BUT salt nitriding and stainless don’t play well together. SO we decided to do some in Chromoly steel as well.

These ones are very nice as well for those that prefer a deep black finish.


Hold My Beer.


Ultimatum Action Questions??

[email protected]

Additional information

Weight 1 kg
Dimensions 38 × 16 × 4 cm
Bolt Face Diameter

.223 Bolt Face, .308 Bolt Face, Regular Magnum Bolt Face

Action Size

Short Action, Long Action

Action Style

Tactical, Hunter

Finish Type

DLC/TiN, Polished Stainless, Nitrided Chromoly Steel

4 reviews for Ultimatum HMB Actions

  1. GimpsWithGuns

    I already love it, and they’re not even available yet!

  2. dansgunshop.ca

    Sign me up!

    • Ryan Steacy

      Won’t be long!

  3. Rob Lonsberry

    Love the name. I’d like to see what they look like and what are the options.

    • Ryan Steacy

      It won’t be long now Rob. We will announce them when they are ready to go!

  4. John pavel.

    Waiting patiently for the HMB. Looking for 308 bolt face long action. Wanting to build 6.5 x 284. Hoping soon so the build can start.

    • Ryan Steacy

      Wont be long now John.

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