Ruger Mark IV Aftermarket Begins with Volquartsen Accurizing Kit

The Ruger Mark III is dead. Long Live the Ruger Mark IV!

With the Ruger Mark III formally discontinued, the entire aftermarket will now be looking to the Ruger Mark IV for their new customers (though it’s not like the Mark III is going away anytime soon). That aftermarket will also be looking at the backside of Volquartsen, who has announced the release of the first part (that I know of) for the internal function of the Mark IV: their Accurizing Kit.

In short, the Accurizing Kit is actually a trigger kit, complete with all the machined parts, springs, and detents needed to bring the pretty good Mark IV trigger up to Volquartsen’s fantastic standards.

Kit includes:

  • Target Hammer
  • Hammer Bushing
  • Target Sear
  • Target Trigger
  • Plunger & Spring

The trigger is fully adjustable for both pre and overtravel. Further, it completely removes the (annoying!) magazine disconnect standard on all Mark IV handguns. Volquartsen states the Accurizing Kit brings the trigger to a “crisp, clean 2.5lb trigger pull.” Sounds understand and delightful.

The kit is easily installed by the typical gunsmith, but enterprising home enthusiasts should not have too much difficulty with Volquartsen’s complete install instructions available online. 

The Accurizing Kit is available now at a retail price of $105. 



Nathan S.

One of TFB’s resident Jarheads, Nathan now works within the firearms industry. A consecutive Marine rifle and pistol expert, he enjoys local 3-gun, NFA, gunsmithing, MSR’s, & high-speed gear. Nathan has traveled to over 30 countries working with US DoD & foreign MoDs.

Nathan can be reached at Nathan.S@TheFirearmBlog.com

The above post is my opinion and does not reflect the views of any company or organization.


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  • BattleshipGrey

    I’m still surprised Ruger finally updated the Mk III.

    • k75736

      And still didn’t fix the biggest problem; that the barrel is the serialized part.

    • AndyHasky

      The S&W Victory pistol came out and lit a fire under Rugers… you know

    • Steve

      They should have skipped the Mk III and just went from the Mk II to the Mk IV. With the terrible loaded-chamber indicator, magazine disconnect, and old-style take-down system, the Mk III was definitely the dog of the series.

      I actually prefer the heel release of the Mk II over the 1911-style mag release on the Mk III… I’ll probably pick up a Mk IV just to have the best of both worlds.

  • Blake

    Good stuff. If you’re looking for a Volquartsen dealer in the NoVa/DC metro area, I recommend http://rimfiresports.com/

  • Dang, my old MkII Target is already a bottlecapper; an accuracy kit for a MkIV should be regulated as a laser-emitting device.

  • wake me when Volquartsen brings their 22/45 frame to the Mark IV.

    • AndyHasky

      I’ll finally buy a new target 22 lr. that day. Till then a lowly browning buckmark will do.

  • thedonn007

    My biggest complaint about my 22/45 is taking it apart for cleaning, but I do not hate it enough to sell it and buy a Mark IV.

  • YZAS

    Oh boy, looks like i’ll be pretending i’m a gunsmith again some day soon. More gray hairs on the way. Long live Mk IV

  • 4 of 6 of those parts would likely work fot the MkIII.

  • Disarmed in CA

    This I could purchase legally, the gun not so much.

  • Randy Reinke

    Why cant anything ever be good enough in factory form ???