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iota Kremlin Rifle Stock and Triad ZL Scope Ring Review
The Triad ring series is compatible with Picatinny rails and comes with a modular key system to help guarantee the best fit possible with the rail’s slots. The keys come in 0”, -.0035” and +.0035”and the user simply tries each key in the appropriate slot on their rail and uses the one that fits the best. On my rifle the rear key location was a perfect fit with a size 0” while my front key location could almost fit the +.0035” but I used the 0” to make sure it fit all the way; with a little sanding the .0035” would have been perfect. The modular key system is another unique design feature iota has developed to help reduce slop from the tolerances allowed in a standard Pic rail.

While placing my scope into the rings the fit was a little tighter than normal but it was easy to get it fully seated and rotated into the proper orientation. I torqued down the rings to the proper specs and the scope felt rock solid. Initial impressions? I loved the modular keys to get a tight fit with my Pic rail, the ZeroLight feature seemed interesting and the rings looked really good on my rifle.

iota Kremlin Rifle Stock and Triad ZL Scope Ring Review
Figure 4. Triad rings mounted on a Burris XTR2


After using the Triad ZL rings for many days in the field I absolutely love them. Having the ability to illuminate my turrets and level is a luxury I never knew I was missing. While I never felt the need to turn on the light in the morning I loved flicking it on for the last few minutes of daylight. As an added bonus for those users with aging eyes, it makes reading the turrets a lot easier without the need for your reading glasses when the ambient light gets low.

At their price point of $200 they’re not cheap but the integrated level and light make them a great purchase compared to other rings in their price range. Suffice it to say, when I build my next rifle there is a very good chance it will be topped with a set of Triad ZL rings, or their Nomad ZL rings, which are their one-piece base-ring combo. For those users who don’t want the ZeroLight technology, both their rings are offered without it as well at a slightly lower price.

iota also offers a stock they named the Kremlin. As those of you who have built custom rifles know, a custom stock often has a 6-8 month wait and can quickly become the holdup of your build. The objective for the Kremlin was to produce a stock that could be reliably delivered with a lead-time of 4-6 weeks. The stock also needed to be rock solid, look good, not be too heavy, and have great ergonomics.

iota Kremlin Rifle Stock and Triad ZL Scope Ring Review
The Kremlin enjoying the shade by the river


After a few design iterations the Kremlin was born. I have included the diagram below to show the dimensions of the Kremlin to help you get a reference for its size compared to other stocks on the market. The stock has a listed weight of 2.5 pounds but mine weighed 3 after the addition of a bipod rail and two flush cups.

iota Kremlin Rifle Stock and Triad ZL Scope Ring Review
iota Kremlin stock dimensions


The Kremlin is currently offered for Remington 700 footprints in both long and short action, right and left handed, with a Sendero barrel channel and inletted for standard BDL or M5 bottom metal. It comes with pillars installed and is available in your choice of various molded in color patterns. If you want to customize your stock to include accessories such as flush cups, additional swivel studs or bipod rails, or if you require a different barrel channel inlet you can contact iota and they can accommodate most requests.

I ordered my Kremlin in Citadel Grey for a Remington 700 short action with an M5 inlet. I requested that two flush cups be installed on the left side of the rifle and a bipod rail be added to the forearm. The stock arrived within a few weeks of ordering and I hurried home to slap it together.

I tried to place both of my barreled actions (Rem 700 and Bighorn TL2) in the stock but neither one would fit correctly. A little detective work showed the recoil lug pocket was not deep enough for my aftermarket lug on my Remington or the integrated lug on the Bighorn, but some quick handy work with a Dremel had the actions fitting in no time.

Both my rifles wear aftermarket barrels that claim to be Remington Sendero/Varmint contours but both of them fit too tightly in the barrel channel. It took less than 10 minutes to open up the barrel channel enough to free float the barrel by wrapping sand paper around an appropriate sized socket and sanding it out. The M5 metal I ordered from Stocky’s fit like a glove as I finished bolting the rifle together.

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