Springfield Armory Saint Victor—Now as a 9mm PDW
Springfield Armory’s Gen 2 Saint Victor launched earlier this year with new features…
Springfield Armory’s Gen 2 Saint Victor launched earlier this year with new features…
Woox might be best known for painstakingly crafted wood furniture and chassis systems…
The wait is finally over—UN12 Issue 24 is now on sale and on newsstands…
Setup & Shooting Instructions This drill is executed with a carbine at 50 yards. The…
All shooting is a balance between speed and precision. By that I mean you can…
The Mod-Navy Qual I’ve been doing this qual (or drill, or whatever the current nom…
TANDEMKROSS has delivered on our promise to ourselves and our customers: offering yet another top-notch product at a great price to solve real users’ problems to make a good gun great. The journey to release the #TANDEMIZED “Kraken” for Ruger® Mark IV™ and Mark IV™ 22/45™ has been an exciting year in the making and is now officially here.

What was once a stripped grip frame perfect for skilled tinkerers and advanced DIYers is now a fully assembled, accessorized, and upgraded drop-in lower ready right out of the box. If you can turn a screwdriver or change a lightbulb, you can confidently install your Mark IV™ or Mark IV™ 22/45 upper to a brand new #TANDEMIZED “Kraken.”
If you don’t already know, to be #TANDEMIZED is to have something fully customIZEDwith TANDEMKROSS parts. This means the #TANDEMIZED “Kraken” Lower has all the same crucial advantages over the factory grip frame, but now with the added benefits of every part TANDEMKROSS has that can be installed on a Ruger® Mark IV™ 22/45™ grip frame. From top to bottom, everything in and on the #TANDEMIZED “Kraken” is from TANDEMKROSS.
The #TANDEMIZED “Kraken” is available in customers’ choice of color for the frame and accessories allowing them to make their pistol truly unique to their personal preference. This deluxe upgrade comes with all the following products fully assembled and installed by our in-house experts:
Purchasing all these parts separately quickly adds up to well over the starting MSRP of $599.99 for the #TANDEMIZED “Kraken” and would still require the time and skill necessary to install everything when it arrived. Getting the fully assembled “Kraken” gets you immediate savings in time and dollars with the confidence that every part on the new lower for your Ruger® Mark IV™ or Mark IV™ 22/45™ was properly installed by a skilled and trained professional.
With everything already assembled and installed, the newly #TANDEMIZED “Kraken” can interchangeably host factory or aftermarket uppers for either the Standard Ruger® Mark IV™ or the Mark IV™ 22/45™. Anyone previously deprived of experiencing the pleasure of shooting or owning a 22/45™ now only needs this and to convert their magazines by replacing the Mark IV™ base pads with Mark IV™ 22/45™ base pads (like TANDEMKROSS’s “Tomahawk” or “MarkPRO” Magazine Bumpers).
Bryan Haaker, Co-Owner and Co-Founder, had this to say about the latest release:
2 years ago, we saw a market need and took the rope of responsibility of developing our largest and most complicated product to date. There was sweat. There were tears. Hopefully there was no blood except in the metaphorical sense! On Saint Patrick’s Day, March 17, 2022, we finally reached our goal. We provided the market with the most reliable, most ergonomic, and most beautiful lower for the number one .22LR hand gun in the market, the Ruger® Mark IV™ 22/45™.
The #TANDEMIZED “Kraken” for Ruger® Mark IV™ and Mark IV™ 22/45™ is an absolute must-have for anyone looking to make their good gun great.
Don’t miss anything, check out all the latest news.
Want more posts like this one? Subscribe to Guns & Tactics to receive email updates and special offers direct to your inbox!
Social Links:
– The views and opinions expressed on this web site are solely those of the original authors and contributors. These views and opinions do not necessarily represent those of Guns & Tactics, the administrative staff, and/or any/all contributors to this site.
– Affiliate Disclaimer: Guns and Tactics is reader/viewer supported. This post may contain affiliate links and we may earn a small commission when you click on the links at no additional cost to you. As an Amazon Affiliate I earn from qualifying purchases.
[mc4wp_form id=”30235″]
Guns & Tactics is an online media outlet that focuses on the firearms community, not just firearms and gear but also quality training, technical break downs and enlightening presentations.
The only unresolved point I was not able to look at before this article went to print was whether or not right handed shooters could mount a Battery Assisted Device (BAD) lever to the lower, thus allowing right handed shooters to lock/release the bolt back with their trigger finger. I will try mounting some of the more popular brands to see if there is enough clearance, and updated this article when I have an answer.
Over the next few months, I will run a few different trigger systems through a project Glock that I have. I was initially going to put an Agency…
U.S. LawShield offers state-specific Travel Guides and top tips for gun owners as they prepare to travel in the coming months.
Photographing the Tavor Assault Rifle – 21st Century (TAR-21) with Crossfire. Due to the dynamic changes in the modern battlefield, the threats of global terrorism and the demands…
New from Nextorch Industries, the Nexdot WL15 Tactical Weapon Light is a rail-mounted tactical light designed in Germany and engineered to meet the challenges of law enforcement and…
EAGLElement reviews the Battle Systems MPIL, an extremely lightweight (1oz) and truly a multifaceted friendly marking device. Battle Systems LLC founder Jake O’Dell believes in providing the combat…
© 2026 UN12 Magazine
© 2026 UN12 Magazine
Wait! Don’t forget to
Notifications