For installation instructions, please click here.
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
10 Reviews
-
Great addition to a fun gun!
I really like this bolt. The gold on gold color and the smoothness of everything is awesome. It runs very well as a quick switch out part. I'm new to customizing guns and I was initially worried about this since I've bought another part from another company and had a bad experience. That other piece out of the box was rubbing against the chassis more that it should requiring some post sanding. This bolt however, even before I gave it a basic oil up fit smooth as butter. I haven't tried the cleaning tool yet, but I can't tell you how excited I am about that as well lol. Anything to make it easier to get into the nooks and crevices. I wish Tandemkross sold the extraction tools separately however, I would have bought an extra set just in case I lost the original that comes with it.
-
super smooth
The machining is so much smoother than the stock Ruger so glides with minimum effort. The tools provided, make cleaning the extractor groove after shooting suppressed all day, a breeze. definitely an upgrade i should have done a long time ago.
-
TK 22/45 bolt
The quality of this item is a 10 out of 10. I probably would have liked the charging ring just fine, but I had a little extra money to spend and just got the complete bolt and love it.
-
Fits as well as the original bolt.
The halo allows the quick chamber recharge that I need during timed competitions.
-
Perfect!
My 75th Anniversary Ruger Mark IV would jam constantly after warming up with a magazine or two, failing to eject. The factory bolt was about 0.002" oversize so expanding would bind. Switched to Krossfire bolt and it works perfectly.
-
Was anxious to receive new release. As usual top notch work. Customer service is outstanding.
Great line of upgrades
-
Ruger Mark IV Krossfire bolt
I need to update my last review, after shooting 200 more rounds with this bolt, the set screw loosened up and the charging ring became very loose. If you purchased this bolt, remove the set screw and put some loctite on the set screw threads.
-
Great product
I shot my Ruger this morning for the first time using my new Bolt. It ran very smooth. I am very happy with my purchase and would recommend it highly to everyone.
-
Krossfire Bolt for MK IV
Works flawlessly!! Easy installation.
