At a Glance:
Cerakote finish (red cerakote will have a slightly different appearance compared to red anodized [TK] accessories)
Firmly anchor your barrel to the lower
Greatly increase lifespan and strength
Center of gravity decreases muzzle rise
Supports factory and aftermarket uppers
Every “Kraken” comes with an extended magazine release
Pivot kit now pre-installed in every lower as of November 24, 2021 (Pivot kit replaces factory Ruger® Frame Lug and is only compatible with the TANDEMKROSS “Kraken” Aluminum Lower)
NEW in November 2021
The “Kraken” Aluminum Lower now comes in four exciting colors! PLUS! TANDEMKROSS now carries ALL the internal components necessary to build a complete “Kraken” Aluminum Lower WITHOUT a donor pistol. Assembly is still required, but no more hunting for hard-to-find parts! TANDEMKROSS has everything you need for your build! Simply pick your favorite color “Kraken,” add a “Build Your Own Kraken” or “B.Y.O.K.” Kit with the drop-down option below, and you’re on your way!
The “B.Y.O.K.” Kit includes:
The TANDEMKROSS “Kraken” Aluminum Lower is a “stripped lower” designed to house the internal components of a factory lower in an all new, deluxe upgrade!
The “Kraken” is built to Last! This light and durable aluminum lower is highly heat and chemical resistant. Fully metallic means no more ripping thread inserts out of a plastic frame! The durable cerakote finish helps to prevent corrosion, improve performance, and reduce wear.
The “Kraken” features a textured back-strap for a more slip-resistant surface in all conditions. This in combination with larger, “hooked” trigger guard provides enhanced ergonomics for improved grip and control. The oversized trigger guard is also ideal for gloved hands!
Over time, the engagement between the receiver and lower of the pistol can lose its secure seating resulting in unwanted slack between the two components. We have removed the one button takedown in favor of a redesigned and upgraded takedown screw. This new, proprietary locking mechanism will improve the interface between the lower and receiver, creating a tighter and more secure fit. All this makes your pistol more reliable and dependable.
Anyone who has fully disassembled and reassembled a Ruger® Mark IV™ 22/45™ knows that the installation of the sear can be the most frustrating part of the process. The intuitive design of the “Kraken” makes installation of the sear simple with a sear retention hole; designed to allow the sear to be held in place with the included 1/16" allen wrench until the hammer assembly is installed.
We have also included an internal feature to limit how far the hammer can lean back. This ensures the hammer is never cocked over center, eliminating a common headache during installation.
The “Kraken” supports virtually all [TK] parts and accessories for the Ruger® Mark IV™ 22/45™. This lower will also host practically all aftermarket and factory receivers for the Ruger® Mark IV™ and Mark IV™ 22/45™.
With the new colors available for the “Kraken,” the ways to get #TANDEMIZED are limitless!
The “Kraken” Aluminum Lower for the Ruger® Mark IV™ 22/45™ is an absolute must-have for competitive shooters or just to MAKE YOUR GOOD GUN GREAT!
- Ruger® Mark IV™ 22/45™
- Ruger® Mark IV™ 22/45™ Tactical
- Ruger® Mark IV™ 22/45™ LITE
Don’t forget! All TANDEMKROSS products come with a no-hassle, lifetime guarantee!
If intending to install Volquartsen Firearms internals:
- The sear spacer will not be needed or used in the “Kraken” Aluminum Lower
- Volquartsen Firearms has produced two versions of the sear for Ruger® Mark IV™ 22/45™. The “Kraken” will work with only the smaller of the two Volquartsen sears (measuring 0.3625"). The “Kraken” will not work with the larger of the two sears (measuring 0.4213"). If you do have the larger sear, please reach out to Volquartsen Firearms for options.
RETURNS: If you choose to add a “Build Your Own Kraken” or “B.Y.O.K.” Kit to your “Kraken” Aluminum Lower, no individual component is eligible for return unless for manufacturer defect. To return any individual component of a “Kraken” purchased with a “B.Y.O.K.” Kit for any other reason, the entire product must be returned in full.
INTERNATIONAL CUSTOMERS: Please note, because the “Kraken” Aluminum Lower is considered a frame, it is NOT available for international sales.
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.P65Warning.ca.gov