At a Glance:

Precisely machined bolt with wear and corrosion resistant finish
Assembled with all TANDEMKROSS parts including firing pin, extractor, and guide rod
Integral halo Charging Ring for improved clearing and charging

Upgrade your firearm with the Krossfire Bolt for Ruger® Mark IV™ and 22/45™! This high-quality bolt is CNC machined and finished in either black DLC or gold Titanium Nitride (TiN). These finishes aren’t just for looks as they provide corrosion resistance, reduce friction, and minimize wear to ensure your firearm runs smoother for longer. The extractor plunger also features unique geometry for simplified disassembly, cleaning, and maintenance.

The Krossfire Bolt is upgraded with the full suite of TANDEMKROSS bolt upgrades including the Sentinel Guide Rod, Eagle’s Talon Extractor, and Fire Starter Titanium Firing Pin. Plus, charging your firearm is easier than ever with the integrated halo Charging Ring! The new integral halo is available in anodized black, red, or gold to match or complement your bolt and the rest of your pistol.

Get yours today and feel the difference in every shot!

Supported Models:

IMPORTANT: A very light application of preferred light lubricant on the bolt body is recommended.

COMPATIBILITY NOTE: The TANDEMKROSS Krossfire Bolt is designed to accept TANDEMKROSS internal components and function in factory Ruger® Mark IV™ and Mark IV™ 22/45™ receivers/uppers. Compatibility with aftermarket receivers/uppers is not guaranteed. The Krossfire Bolt can be made compatible with factory Ruger® Mark III™ and Mark III™ 22/45™ if the user removes the factory Loaded Chamber Indicator or when paired with the Tandemkross LCI Replacement (discontinued).

The Krossfire Bolt and integral halo Charging Ring are protected by the TANDEMKROSS Lifetime Warranty against mechanical failure. TANDEMKROSS firing pins, extractors, and springs are protected against mechanical failure for two years after the time of purchase. Learn more about our warranty and return policies here.

⚠️ WARNING: This product can expose you to chemicals including chromium, which is known to the State of California to cause cancer. For more information go to www.P65Warnings.ca.gov