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Questions & Answers
Well it work with mkiii 22/45 Expert Answer

If it is not listed as compatible, it is possible but not a guarantee.

by Ben, Gear Expert, February 23, 2021
will it work with the Mark II Expert Answer

If it is not listed as compatible, it is possible but not a guarantee.

by Ben, Gear Expert, February 23, 2021
Customer Reviews
Helpful Positive Review
Super Slick Look by Big Bad, August 28, 2022
After several years of updating parts here and there for my Ruger MKIV 22/45 LITE I decided to upgrade to a whole new Volquartsen upper. After using my factory bolt which functioned without an issue I decided it just wasnt cool looking enough. Bought...
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2/2 found this helpful
Helpful Positive Review
Volquartsen Bolt for Ruger MK IV by Dr Skog, March 25, 2020
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...
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4/4 found this helpful
Helpful Positive Review
Very nice! by John Ewell, May 8, 2022
Bought this for my Ruger 22/45. So much smoother than the factory bolt. I also love the charging handle. So much faster and easy to charge. Honestly Ruger should be using this bolt instead! I still have and use the factory bolt on occasion. This one ...
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3/3 found this helpful
Helpful Negative Review
Volquartsen Bolt by Kevin Higashi, Verified Owner, November 16, 2023
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, ...
Read More...
3/3 found this helpful
Most Recent Reviews
Best bolt for Mark iv by Bolt, Verified Owner, June 24, 2025
This is the best bolt you can get. Helps cycle the lowest back pressure sub sonic ammo.
Most Recent Reviews
Volquartsen Bolt by BrianS90, Verified Owner, January 14, 2025
Quality was as expected from Volquartsen. Fit and finish was excellent and it functions as intended.
Read All 13 Reviews
Color: Black DLC Gun Make: Ruger Gun Model: Ruger Mark II , Ruger Mark III , Ruger Mark IV Condition: New

Code: 2PG-PP1-CBMIV-VC4BT-B

MPN: VC4BT-B

UPC: 810162015183

List: $305.00Save 10%
$275.00

made-in-usa-flag Made in USA

Help support American manufacturing! Marked models of this product have gone through rigorous review and been certified by the manufacturer as Made in the USA.

Product Info for Volquartsen Firearms MKII, MKIII or MK IV Competition Bolt

Protect what's most valuable when you upgrade your firearm with a Volquartsen Firearms Competition Bolt for MK IV. Each of these Pistol Slides & Slide Parts developed by Volquartsen Firearms are case hardened to max case hardness and treated with a premium finish for increased lubricity, wear resistance and low coefficient of friction that will guide your shots down range while enhancing your bolt's lubricity. With an Extended Bolt Racker machined into the Volquartsen Firearms MKII, MKIII or MK IV Competition Bolt, you can easily manual cycle the bolt when shooting with your Ruger MK IV pistol. However, these parts still need lubrication from time to time, and your Volquartsen Firearms MK IV Competition Bolt does come with the SureStrike Firing Pin and Exact Edge Extractor that comes installed on the bolt. Before you can call yourself a true competitor, you need to install a Volquartsen Firearms MKII, MKIII or MK IV Competition Bolt on your firing device.image

Specifications for Volquartsen Firearms MKII, MKIII or MK IV Competition Bolt:

Manufacturer: Volquartsen Firearms
Color: Black DLC
Finish: Black finish is Diamond Like Carbon
Fabric/Material: CNC-machined and ground for superior fit and finish
Gun Make: Ruger
Gun Model: Ruger Mark IV, Ruger Mark III, Ruger Mark II
Condition: New
Country of Origin: USA
Weight: 5 oz

Features of Volquartsen Firearms MKII, MKIII or MK IV Competition Bolt:

  • CNC-machined and ground for superior fit and finish;
  • Extended Bolt Racker machined integral to the bolt for improved manual cycling of the bolt - no more pinched fingers!
  • Black finish is Diamond Like Carbon (DLC);
  • Note: when used with MKIII pistols, the loaded chamber indicator must be removed from the pistol;
  • Compatible with both 22/45 and Target Models;
  • Case hardened and then treated with DLC - a high performance premium finish that offers many advantages:
    • Increased hardness;
    • Low residual stress;
    • Increased lubricity;
    • Low coefficient of friction;
    • Improved wear resistance;
    • Requires much less lubrication

Package Contents:

  • Volquartsen Firearms MKII, MKIII or MK IV Competition Bolt
  • Exact Edge Extractor
  • SureStrike Firing Pin

Volquartsen Firearms MKII, MKIII or MK IV Competition Bolt Orderable Models

List of Orderable Models

  • Volquartsen Firearms MKII, MKIII or MK IV Competition Bolt, Black DLC, VC4BT-B , MPN: VC4BT-B , UPC: 810162015183 , Code: 2PG-PP1-CBMIV-VC4BT-B

Volquartsen Firearms MKII, MKIII or MK IV Competition Bolt Unavailable & Discontinued Models

List of Unorderable Models

  • USED, Volquartsen Firearms MKII, MKIII or MK IV Competition Bolt, Black DLC, VC4BT-B , MPN: VC4BT-B-EDEMO , Code: 2PG-PP1-CBMIV-VC4BT-B-EDEMO-RE-B
  • USED Volquartsen Firearms MKII, MKIII or MK IV Competition Bolt, Black DLC, VC4BT-B, EDEMO5, Used, Condition Good , MPN: VC4BT-B-EDEMO5 , Code: 2PG-PP1-CBMIV-VC4BT-B-EDEMO5
  • Volquartsen Firearms Competition Bolt for MK IV, Metallic Silver CrN, Metallic Silver CrN, VC4BT-S , MPN: VC4BT-S , UPC: 810162015190 , Code: 2PG-PP1-CBMIV-VC4BT-S
  • USED Volquartsen Firearms MKII, MKIII or MK IV Competition Bolt, Black DLC, VC4BT-B, EDEMO6, Used, Condition Like New , MPN: VC4BT-B-EDEMO6 , Code: 2PG-PP1-CBMIV-VC4BT-B-EDEMO6
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