KAHLES is one of the industry’s most prolific tactical and competitive rifle scope manufacturers. Founded in 1898 as a merger between two other optic manufacturers, KAHLES Optics has had a long history of crafting some of the industry’s top optical systems. And since being acquired by Swarovski Optik in 1974, their renown has grown immensely. Today, they have a vast lineup of optics, with the K318i being one of their most sought-after.
Released in 2018, the KAHLES K318i is one of KAHLES’ flagship rifle scopes. Built with adaptability in mind, it’s easily one of the top rifle scopes fit for Designated Marksman Rifle (DMR) style builds and applications.
KAHLES K318i 3.5-18×50 FFP Rifle Scope
| Magnification Range | 3.5-18x |
| Objective Lens Diameter | 50mm |
| Main Tube Diameter | 34mm |
| Overall Length | 12.3 inches |
| Weight | 33.15 ounces |
| Eye Relief | 3.62 inches |
Specs and Performance Overview
If you aren’t already familiar with what a DMR is, we go over them in our guide, “Understanding the DMR“. Summing it up, a DMR is basically a semi-auto rifle chambered in a full-power cartridge, like .308 Winchester or 6.5 Creedmoor. They’re designed to bridge the gap between smaller carbines and long-range bolt-actions. And with that in mind, it’s easy to see what makes the KAHLES K318i 3.5-18×50 a good DMR optic.
Starting with its power, it has a rather versatile 3.5-18x magnification range. This magnification range is great for both medium- and long-range precision. On the low end, you’ll have a wide field of view (FOV) that’ll let you easily get a visual on targets at 200 yards and closer. Cranking up the zoom, on its high end 18x magnification allows you to get a visual on targets out to 1,000+ yards away.
Adding to its capabilities is some seriously clear glass and solid geometry. KAHLES is a subsidiary of the legendary brand, Swarovski Optik. They’re known for creating arguably the clearest glass in the industry, meaning KAHLES optics boast that same level of lens clarity. But it takes more than good glass to make a usable optic, and the overall design of the K318i plays a big role in making it such a good choice. Its generous 50mm objective lens provides excellent light transmission, creating a high-resolution image with great detail. And with its 34mm optic body, it offers better light transmission than thinner optics, making the actual image you see brighter in lower light conditions. Plus, you’ll be able to run just about any 34mm scope mount you like.
Finally, the K318i’s overall construction is, to put it simply, exceptional. CNC-machined from a single aluminum billet, it’s durable optic that’s rather compact for what it achieves. This rifle scope measures just 12.3 inches long. Other common optics with similar magnification ranges typically measure over 12.5 to 13+ inches. And with it weighing 33.15 ounces, it’s fairly light considering it has a 50mm objective lens. Bearing that in mind, it’s an impressive piece of optical engineering.
Additional Features
The K318i has a lot of premium features packed into its compact frame, many of which take its base-level performance to the next level.
- INDEXSTOP: INDEXSTOP is KAHLES’ return-to-zero system that’s built into their turrets. It consists of a mechanical stop that can be set in place once you’ve acquired your zero, allowing you to quickly return to its original position after making any adjustments in the field. This feature makes it far easier to adjust your elevation when shooting targets at distance. Rather than having to remember how many clicks you adjusted to the turret, you can simply adjust the turret based on your distance to target, fire, and then adjust the turret back until it bottoms out.
- TWISTGUARD: The windage turrets on the K318i are outfitted with KAHLES’ TWISTGUARD windage anti-rotation system. This system was put in place to prevent accidental turret adjustments. The TWISTGUARD cap rotates, so if you accidentally snag the scope on your gear or brace it against a tree or something, the cap will rotate without moving the turret.
- SKMR4 Reticle: Of the multiple reticles that can be housed within K318i rifle scopes, the Shannon Kay Milling Reticle 4 is, by far, one of the most sought-after. The SKMR4 reticle is a unique reticle designed specifically for long-range competitive shooting, as well as other tactical applications. Developed by Shannon Kay (hence the name) who’s a professional PRS competitive marksman, it’s a MIL-based reticle. It uses an ultra-fine center dot aiming point, while its subtensions are spaced out in 0.5-MIL increments along both the vertical and horizontal stadia. In addition to them, it also has 0.2-MIL subtensions in between for even more precision at distance. Lastly, this reticle also makes use of a Christmas Tree style MIL grid that gradually flares out from top to bottom.
Price
As you may have gathered from the title of this article, the KAHLES K318i isn’t exactly a budget-friendly rifle scope. It’s a premium rifle scope developed by one of the industry’s most premium manufacturers. As such, they’re often priced around $3,700.
Since their inception, KAHLES has cultivated a longstanding reputation amongst world-class competitive sharpshooters. And given each scope’s inherent quality and precision engineering, there’s a reason KAHLES scopes demand such a high price. Each one is tailormade to offer top-tier performance. So, whether you’re aiming to compete or kit out a rifle with no expense spared, KAHLES is the move. That said, it does lead one to wonder what rifle would pair well with such a premium optic?
Geissele Automatics Mid-Range Gas Gun
Premium optics like the K318i command a high level of respect, and high-quality optics deserve to be mounted onto high-quality rifle systems. We can’t think of a better pick than the Geissele Mid-Range Gas Gun (MRGG).
For a long time, Geissele Automatics has been at the top of the firearms industry. Getting their start as an aftermarket parts manufacturer specializing in AR-15 trigger manufacturing, they’ve grown their outfit into arguably the most recognized brand in the industry. Today, they continue to craft high-quality AR parts, and even award-winning rifle systems.
The MRGG is one such rifle system. The first large-caliber AR platform rifle in Geissele’s lineup, it won a USSOCOM contract and has quickly risen to prominence thanks to its proven reliability in some of the harshest testing conditions possible. Although there are many different Geissele MRGG rifles available, we’re looking specifically at the 16-inch variant chambered in .308 Winchester.
Geissele MRGG – 16-inch .308 Winchester
| Barrel Length | 16 inches |
| Barrel Material | Cold hammer-forged, chrome-lined |
| Twist Rate | 1:8 |
| Muzzle Device | HUXWRX 7.62 Flash Hider |
| Handguard | 13.5-inch SMR MK16 |
| Trigger | Super Semi-Auto Enhanced (SSA-E) |
| Charging Handle | MRGG Enhanced Ambidextrous |
| Bolt Release/Catch | Ambidextrous |
There are a lot of features present in this rifle system that make it an excellent candidate for a no expense spared DMR build. For starters, with it being chambered in .308 Winchester, it can certainly go the distance when needed. Even with a more compact 16-inch barrel, it can still reliably land precise hits on targets out to 800 yards away. Plus, since the barrel is cold hammer-forged and chrome-lined, it’s strong enough to withstand hotter specialized precision loads, and just about anything your environment can throw at it.
Being a Geissele rifle, you already know that it comes from the factory kitted out to the nines with elite gear and accessories. For starters, it comes standard with an SSA-E trigger, arguably their most popular one. A two-stage trigger has a 2- to 2.5-pound pull in the first stage, and a 0.9 to 1.3-pound in the second for a smooth, repeatable pull. Additionally, it has an SMR MK16 handguard made specifically for the MRGG platform. It has M-LOK slots along all sides sans the top, which has a continuous picatinny rail for accessories like IR lasers and weapon lights. Finally, rounding out this rifle is a Magpul PRS Lite stock and a Geissele A22 pistol grip, giving you the proper ergonomics needed to comfortably engage far-off targets.
Something important to note is that each MRGG rifle comes fine-tuned from the factory to be as accurate and reliable as possible. They all come standard with a tuned gas system and buffer assembly. So, you can reliably run diverse ammo loads without having reliability issues or an overly harsh recoil impulse. With all these high-quality accoutrement and tuning, these rifles are among the most premium ones on the market. The 16-inch .308 variant typically costs around $6,300. But for that price, you get one of the finest DMR-style rifles money can buy.
Who is this Optic and Rifle Combo For?
All-in, this optic and rifle combo costs roughly $10,000, without an optic mount and other accessories. But still, it’s the perfect setup for resolute sharpshooters who want to run some of the best gear the industry has to offer. Looking at each part individually, they make for an excellent DMR-style setup, one that could be used for competitive shooting as well as professional-level tactical applications.
The Kahles K318i stands tall as one of the most advanced rifle scopes in its class. Made from a rigid optic body and crystal-clear Swarovski lenses, it’s purpose-built for everything from medium to long-range engagements. And with its SKMR4 reticle, it does so as precisely as possible.
Meanwhile, the Geissele MRGG platform is one of the most readily available rifles that’s already outfitted with the proper core components for semi-automatic long-range precision. Coming from an already renowned manufacturer, its SOCOM-tested track record ensures that it will run, no matter the application.
