Watch this video for installing internal parts from a donor pistol.
Watch this video for installing all TANDEMKROSS internal parts.
At a Glance:
Aluminum grip frame with cerakote finish increases durability and strength
Single takedown screw replacing button increases firm anchor to upper for reliability
Supports factory and aftermarket uppers for Ruger® Mark IV™ and Mark IV™ 22/45™
The TANDEMKROSS Stripped “Kraken” Grip Frame is designed to work with virtually all factory or aftermarket internal components of a Ruger® Mark IV™ 22/45™. Convert your parts from your polymer, factory lower to this lightweight, durable, metallic upgrade!
“Krakens” are built to last! Made from aluminum with a stylish cerakote finish, this stripped grip frame is highly resistant to heat, chemicals, and general wear and tear. Thanks to the entire frame being aluminum, there is no more need to fear ripping out your brass thread inserts when removing your grip panels for routine maintenance.
TANDEMKROSS’s aluminum grip frame upgrade also boasts a textured backstrap and enlarged and hooked trigger guard. These ergonomic improvements improve the ability to securely grip your pistol and make shooting easier in any condition for hands of all sizes, gloved or not.
While a simple takedown button was a huge value add to the Mark IV™ over the Mark III™, TANDEMKROSS’s engineers saw an opportunity to increase reliability and performance. A single takedown screw is still a common concept on many popular firearms like the Ruger® 10/22® or Smith & Wesson® SW22 Victory®. While it adds the need for a tool, it still keeps the overall takedown process short and sweet. Additionally, this allows for a more firmly anchored engagement between the upper and lower. This method preserves not only the simplicity of your pistol, but the long term reliability as well.
Improved performance and reliability are nice, but the “Kraken” was engineered with even more than that in mind. Thanks to the intuitive design of this aluminum lower, installing the sear and hammer is now easier than ever. Using the sear retention hole, you can hold your sear in place with the included 1/16in hex wrench until the hammer is full installed. There is then an internal feature that prevents the hammer from ever cocking over center, eliminating a common installation headache.
“Krakens” support virtually all TK parts and accessories for the Ruger® Mark IV™ 22/45™ and will host practically any factory or aftermarket uppers for both the Ruger® Mark IV™ and Ruger® Mark IV™ 22/45™.
Available in multiple colors with a flood of aftermarket support, the ways you can customize your pistol are practically limitless. The Stripped “Kraken” Grip Frame from TANDEMKROSS is an absolute must-have for any competitive shooter or plinker looking to get the most out of their favorite rimfire pistol. Get your “Kraken” today to make your good gun GREAT!
Don’t forget, all TANDEMKROSS products are made in the USA and come with a LIFETIME guarantee!
TANDEMKROSS Front Pivot Kits pre-installed replacing factory Ruger® Frame Lug for consistent performance
TANDEMKROSS “Titan” Extended Magazine Release included for reliable and consistent magazine positioning and feeding
INTERNATIONAL CUSTOMERS: Because the “Kraken” is a frame, it is NOT available for direct international sales.
If intending to install Volquartsen Firearms internals:
Do not use the sear spacer
There are two versions of the Volquartsen Firearms sear for Ruger® Mark IV™ 22/45™. The “Kraken” is only compatible with the smaller of the two versions (measuring 0.3625in) and not the larger version (measuring 0.4213in). If you have the larger sear, you will need to reach out to Volquartsen Firearms on how to proceed.
IMPORTANT: This product complies with ATF RULING 2009-2
Any person who installs “drop in” replacement parts in or on existing, fully assembled firearms does not manufacture a firearm and does not need to be licensed as a manufacturer under the Gun Control Act. A “drop in” replacement part is one that can be installed in or on an existing, fully assembled firearm without drilling, cutting, or machining. A replacement part, whether factory original or otherwise, has the same design, function, substantially the same dimensions, and does not otherwise affect the manner in which the weapon expels a projectile by the action of an explosive. Any person who is licensed as a dealer, which includes a gunsmith, and who installs “drop in” replacement parts in or on existing, fully assembled firearms as described in this ruling does not need to be licensed as a manufacturer under the Gun Control Act. Any person who is engaged in the business of installing “drop in” replacement parts in or on existing, fully assembled firearms as described in this ruling must be licensed as a dealer, which includes a gunsmith, under the Gun Control Act.
This item is NOT considered an “80% Lower” and Complies with Rule 2021 R-05F
Grandfathers in existing classifications of frames or receivers (to include split frames or receivers) and allows them to be marked in accordance with the existing requirements.
The full definition can be found here: https://www.atf.gov/rules-and-regulations/definition-frame-or-receiver/summary
This product is NOT a serialized part.
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