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Reviews & Ratings for Volquartsen Firearms MKII, MKIII or MK IV Competition Bolt — 18 reviews

(18 reviews)
Volquartsen Firearms MKII, MKIII or MK IV Competition Bolt
Volquartsen Firearms MKII, MKIII or MK IV Competition Bolt
$320.00 $288.00 Save 10%
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Most Helpful Positive Review Volquartsen Bolt for Ruger MK IV
The best was the customer service displayed by OpticsPlanet. The shipment was lost. The CS rep immediately sent out another shipment without question. This item is like hens teeth to get. Definitely will buy again. Oh, the quality of the product goes without saying.
Most Helpful Negative Review Volquartsen Bolt
I bought this bolt in hopes of reducing or better yet, eliminating failure to fire in my MKlll pistol using standard velocity ammo. In my first outing with the bolt installed this didn’t happen. In fact, it was worse. While the bolt is well made, my suspicion is the recoil rod spring is extremely...
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amazing upgrade

by Ben, Verified Owner from NC, United States Written on January 15, 2026
Works great, just put the guide rod in drop the bolt in your gun and send it! If only the Ruger Mark IV's came with this already it is so smooth.
Would recommend: Yes
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IMO the best upgrade for the Ruger Mark IV pistol

by Mikey, Verified Owner from NY, United States Written on January 9, 2026
The Volquartsen bolt has several attributes which I consider to be reasons for my purchase. First is the shape of the rear of the bolt which allows me to manipulate it easily even with a less than completely useful left arm. Second, the finish on the bolt has better lubricity which makes it easier to manipulate. A very useful upgrade for anyone looking to upgrade their Ruger Mark IV
Would recommend: Yes
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A must have for increased reliability

by NICK COUCH, Verified Owner from AL, United States Written on December 26, 2025
If your sick of misfires , feeding problems and stovepipes, this is the answer.
Would recommend: Yes
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Best bolt for your Ruger IV

by Wil, from TX, United States Written on December 15, 2025
The Volquartsen bolt did not disappoint. It eliminated all failures.
Would recommend: Yes
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Great Bolt

by Billy Ray, Verified Owner from AZ, United States Written on November 9, 2025
Used this to replace a really bad (soft metal) Ruger MK IV Bolt. Works great, super smooth and fixed OEM cheap bad part. Def worth the $$$
Would recommend: Yes
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Best bolt for Mark iv

by Bolt, Verified Owner from TX, United States Written on June 24, 2025
This is the best bolt you can get. Helps cycle the lowest back pressure sub sonic ammo.
Would recommend: Yes
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Volquartsen Bolt

by BrianS90, Verified Owner from AZ, United States Written on January 14, 2025
Quality was as expected from Volquartsen. Fit and finish was excellent and it functions as intended.
Would recommend: Yes
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There is a reason VQ is on top of rimfire

by SquirrelAssassin, Verified Owner from NC, United States Written on August 1, 2024
VQ makes excellent parts for your Ruger Mk, 10/22. This bolt is slicker than fish grease. The fit and finish is amazing. With the integrated bolt handle it makes loading a round easy and simple.
Pros:
  • Action functions smoother with the DLC Coating. Easier to load
Cons:
  • Price. You get what you pay for
Best Used for:
  • competition
Would recommend: Yes
Was it helpful to you? Yes | No
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Volquartsen bolt Roger 22/45

by Psychmyk, Verified Owner from HI, United States Written on June 6, 2024
The volquartsen bolt is highly functional and attractive. I did have a couple of ftf's but after switching ammo it ran flawlessly. I took off a star only because it's kinda expensive.. lol
Pros:
  • Great item. Came with 3 springs
Cons:
  • cost
  • Price $$$ - unfortunately good things come out a price.
Best Used for:
  • IYKYK
Would recommend: Yes
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Volquartsen Competition Bolt for Ruger Mark 4 pistol

by JRN, Verified Owner from TX, United States Written on May 15, 2024
Materals, design and finish are top notch as with all Volquartsen products. I really like how I don't have to worry about pinched fingers while racking this bolt. DLC coating makes cleaning and cycling easier. I have it install in my Volquartsen Mamba-X LLV 4.5 inch barrel upper with a compensator. I mounted this upper onto a Tandem Kross Cthulhu lower and it looks super nice.
Would recommend: Yes
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