FX-3 6x42mm

Its ruggedness, outstanding brightness, and simplicity have made it a favorite among hunters.

Make it Personal

You can modify this scope in our Custom Shop to create the scope of your dreams.

Build Your Dream Scope

Model Options Starting prices are USA only, and are our Suggested Retail Price.

  • Reticle:

    Duplex Reticle Duplex

    Gloss Finish Gloss
    $519.00 Product #66805
  • Reticle:

    Wide Duplex Reticle Wide Duplex

    Matte Finish Matte
    $519.00 Product #66815
  • Reticle:

    LR Duplex Reticle LR Duplex

    Matte Finish Matte
    $584.00 Product #66820
  • Note: Reticle images are a web simulation and not to scale. Actual reticle appearance will vary depending on scope magnification.

    More Reticle Information
FX-3 6x42mm is rated 5.0 out of 5 by 15.
Rated 5 out of 5 by from Just perfect! I purchased two of these over the years and I am very pleased. The simplicity of this scope make it an ideal scope for my Vermont deer stalking. I have used this scope model on both a Howa .223 Rem. for calling predators as well as on my M96 rifle built 1905 in 6.5 X 55 Mauser for deer hunting. The generous eye relief and clarity make it a fast handling scope for the thick Vermont cover. Regardless of the critter this scope has helped me bag it keeps on assisting me harvesting fur and venison. The one on my M96 6.5 X 55 scored again this season with a nice Vermont buck.
Date published: 2017-01-01
Rated 5 out of 5 by from The perfect gift Started hunting just a few years ago, my dads old Husqvarna from 1966 became my companion in the swedish nothern woods hunting moose. The old scope had lot's nicks and scratches from 50years of use, so this summer at my birthday my husband gave me a new scope. A new world open in front of my eyes, sharp and crisp images throu the new Leopold. Love it!
Date published: 2016-09-19
Rated 5 out of 5 by from Excellent scope I have this scope on a DPMS Sweet Sixteen and it work great. Super clear great field of view.
Date published: 2016-03-07
Rated 5 out of 5 by from Faultless fixed power scope I had a fixed power 6x42 scope on an old work horse in .243 for an awful long time. The rifle and scope have been very much subjected to years of use and abuse. I wouldn't like to guess how many rounds have been put through this rifle and scope, but never has the rifle lost zero!! (Even though my friend now owns this set up.) At the time the scope was relatively cheap and I didn't know what to really expect. I can honestly say it was outstanding value for money and if the other Leupold products are as good or even better then they are a force to be reckoned with.
Date published: 2016-09-07
Rated 5 out of 5 by from Customized, a value for service rifle competition Bought this for use under the new CMP/NRA service rifle optic rules. Had customized by Leopold with target dot and M1 knobs. In hindsight the CDS knobs would have worked just as well and wish I had a smaller Leupold Dot?. Great value at just over $500 while other competitors are running $2-3K scopes. Ran a box test and it tracked perfectly and still holding up after 25 matches.
Date published: 2016-09-07
Rated 5 out of 5 by from Durable and lightweight I've had this scope for a couple years now. I used it last year to bag my first bison in the NWT, Canada. I have it on my Browning 30-06 X-bolt, and I use it mostly for bear, moose, and bison. I hike and canoe a lot with the rifle, so the low weight was essential. It was a great buy. Great value and it's hard to find a scope that weighs less than this one.
Date published: 2016-11-18
Rated 5 out of 5 by from Proper Application I mounted this scope on a Ruger Scout. It's absolutely the proper application. I can shoot it with both eyes open for great depth perception. The gun is basically very accurate, and the FX-II Scout scope only adds to that accuracy. I shoot consistent MOA groups at 100 yards. I'll recommend this scope for an IER application anytime.
Date published: 2016-07-25
Rated 5 out of 5 by from Personal touch I just received the scope and it's perfect. I wanted it with the cds sustenance and a custom reticle and the custom shop made it happen. I was very surprised since it's not a scope on their custom list.
Date published: 2016-09-06
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Multicoat 4

Light reflecting off lens surfaces diminishes image quality. So Leupold® engineers developed Multicoat 4®, our own proprietary lens coating system to keep image quality pristine. Multicoat 4 greatly increases the amount of all available light that reaches your eye, while at the same time, it minimizes the reflections of the sky on the outer eyepiece. You’ll never be able to control the light, but with Leupold’s Multicoat 4, you can always make the most of it.

Xtended Twilight Lens System

Now your hunt can reach further into the twilight than ever before possible, with our exclusive new Xtended Twilight Lens System™. It goes a step further than even the Index Matched Lens System®, using Leupold’s® index matched glass with wavelength specific lens coatings designed to optimize the transmission of low-light wavelengths. When most scope manufacturers quote percentage of light transmission, they usually mean at 550 nm, the green wavelength where the human eye is most sensitive. The challenge is that in twilight conditions, green light disappears and blue/violet light takes over. Your eye is already handicapped when it comes to seeing the blue/violet spectrum, and if your scope is cutting too much of it out, soon you won’t be seeing anything. The Xtended Twilight Lens System places extra emphasis on matching coatings to glass indices to achieve the best possible transmission of the blue/violet spectrum, without sacrificing the color balanced light transmission across the visual spectrum of the Index Matched Lens System. When we combine that with superior computer-generated optical design, lead-free lenses of unsurpassed clarity and quality, and 100 years of manufacturing excellence, you have a scope that gives you the details of low-light scenes in greater definition and luminance than any other scope in the world.

DiamondCoat 2

Exterior lens surfaces are treated with DiamondCoat 2™, an ion-assist lens coating, for higher light transmission and the greatest level of abrasion resistance we’ve ever offered. DiamondCoat already exceeds military standards for hardness and durability. DiamondCoat 2 offers unsurpassed durability and will prove its worth in the wildest places on earth. DiamondCoat 2 has the additional advantage of assisting in light transmission, for greater brightness, clarity and contrast.

2nd Generation Argon/Krypton Waterproofing

While we still waterproof other optics with bone-dry nitrogen – technology pioneered by Leupold® – Select models feature our exclusive, proprietary Argon/Krypton gas blend. Its advantages are two fold: it nearly eliminates the effects of thermal shock, and the Argon/Krypton molecules are significantly larger than nitrogen molecules, reducing the diffusion of gases sealed inside your scope even more than our proven nitrogen technology already does. We pioneered riflescope waterproofing, and now with Argon/Krypton we’re exceeding the standards we set ourselves.

Blackened Lens Edges

Blackened lens edges reduce unwanted glare and diffusion through the lens edges to provide better resolution, improved contrast and superior optical perrformance.

Super Fast-Focus Eyepiece

Lockable Fast-Focus Eyepiece

Classic/Standard Lockable Eyepiece

Leupold's classic/standard fast focus eyepiece with a low profile lock ring makes reticle focus easy to achieve and maintain.

BAS (Ballistic Aiming System)

Leupold’s® Ballistics Aiming System™ is comprised of five specialized reticles – Boone and Crockett® Big Game, Varmint Hunter’s, LR Duplex, LRV Duplex, and the new SA.B.R. reticles – which take into account the variables crucial to accurate, long-range shooting. A special ballistics indicator ring allows users to customize their power settings for their cartridge’s ballistics, then saves that setting for easy reference in a hunting situation. With multiple aiming points for longer ranges and varying wind speeds, and infinite power selector settings to match your rifle’s ballistics, the Ballistics Aiming System can help you master the art of accurate, long-range shooting. It has proved so successful in helping hunters learn how to shoot accurately at long range, we’ve expanded your BAS options with additional reticles offering many of the same benefits as the original reticles. We’ve also made them available in more riflescopes than ever. With practice, the Ballistics Aiming System will teach you how to gauge the distance to your target, where to place your reticle for that distance, and even how to compensate for wind deflection. With the Ballistics Aiming System and some practice, you’ll consistently make shots you wouldn’t have attempted in the past. Accurate, long-range shooting is probably one of the most difficult hunting skills to master. For many hunters, it remains a combination of hard-won experience, intuition, and a little luck. Together, the reticles of the Ballistics Aiming System give the hunter very useful tools for successful hunts with clean and efficient harvests. By practicing with the Ballistics Aiming System, all hunters can add science to the art of long-range shooting, and master this important skill. One System, Five Unique Reticles The Boone and Crockett Big Game reticle and the Varmint Hunter’s reticle use the same principles to help you hone your long-range shooting skills, though each has been tailored to meet the needs of big game or varmint hunters. With practice, using each will become a natural part of your shooting. Unlike other range estimating reticles, the calculations made here are incredibly simple, and take the guesswork out of long-range shooting. Each reticle provides a series of aiming points. The first aiming point, the intersection of the Duplex® reticle, is to be used at 200 yards with most common cartridges, and 300 yards with several flatter shooting, longer-range loads. The Boone and Crockett Big Game reticle and Varmint Hunter’s reticle also provides you with two different power selector ring settings, indicated by large and small triangles on the power selector. These allow you to select the hold points best suited to the cartridge you are using. In some cases, the smaller triangle setting can be used with your slower, heavier bullet load, and the large triangle setting with your faster loads in the same rifle. The new SA.B.R. reticle also features holdover points and a power selector matched to different load settings for muzzleloaders and shotguns. The LR Duplex and LRV Duplex reticles are designed to be used only at the maximum magnification settings. For example, a 30-06 with a 180gr spitzer bullet and 2700 fps muzzle velocity would use the smaller triangle setting. In the same rifle, a 150gr spitzer bullet with 3000 fps muzzle velocity would use the larger triangle. We have designated three sets of cartridges to be used with the large and small triangle settings, and sight-in distances of either 200 or 300 yards, described as Group A (large triangle, 200 yard zero), Group B (large triangle, 300 yard zero), or Group C (small triangle, 200 yard zero). Verify the aiming points by shooting at the actual distances at which the hold points in the reticle are intended to work. With the LR Duplex and LRV Duplex reticles a shooter can tailor the reticle to his or her load by varying the magnifications, thus altering the subtensions. With all four reticles, remember: practice, practice, practice!

Standard Multicoat

Micro-Friction 1/4 MOA

1/8 MOA Target

Features 1/8-MOA target-style click windage and elevation adjustments.

1/4 MOA Target

Features ¼-MOA target-style click windage and elevation adjustments.

1/4 MOA Finger Click

Finger click adjustments for windage and elevation (¼-MOA) offer absolute repeatability and dependability over a lifetime of extreme use (metric adjustments – 1 cm per click

1/4-MOA field-click adjustments

Windage and elevation dials in 1/4-MOA field-click adjustments.

Custom Shop serviceable

EFR Adjustable Objective

Adjustable Objective

Proprietary Nitrogen Fill Process

One inch Maintube

6061-T6 Aircraft Quality Aluminum

Crafted from 6061-T6 aircraft quality aluminum.

Durable Lens Cover

Keep the lenses of your Leupold® riflescope looking like new. Protect it from dirt and damage with the durable bikini style lens cover included with your riflescope. Protect your scope while in storage or in the field.

Factory Standard Reticles

Leupold offers more factory standard reticles than any other scope manufacturer. Our line of hunting scopes feature over 20 different popular reticle configurations including Leupold's own line of Ballistics Aiming System reticles. If that weren't enough, most Leupold scopes may be configured with your preferred reticle through the Leupold Custom Shop. For a truly unique optic have our experts create a custom ballistically matched reticle tuned specifically for your rifle, load and shooting conditions.

24K Gold Ring and Medallion

Specification Low High
Actual Magnification N/A 6.00 x
Linear Field of View (ft/100 yd) 17.30 ft N/A
Linear Field of View (m/100 m) 5.80 m N/A
Eye Relief (in) 4.40 in N/A
Eye Relief (mm) 113.00 mm N/A
Specification Value
Weight (oz) 13.60 oz
Weight (g) 386.00 g
Objective Clear Aperture (in) 1.70 in
Objective Clear Aperture (mm) 42.00 mm
Elevation Adjustment Range 55.00 moa
Windage Adjustment Range 55.00 moa
Specification Value
Scope Profile Diagram
A. Length 13.20 in
B. Tube Length 5.40 in
C. Illustration 2.00 in
D. Illustration 2.20 in
E. Eyepiece Length 2.50 in
F. Objective Length 4.00 in
G. Objective Diameter 1.90 in
H. Eyepiece Diameter 1.60 in
K. Tube Diameter 1.0 in
25.40 mm

Alumina Flip-Back Lens Cover - Standard EP

Designed for Leupold scopes built after 2003, Alumina® Flip-Back™ lens covers feature powerful neodymium magnets to hold them securely closed and the triple O-ring seals provide maximum protection from the elements. Constructed out of durable 6061-T6 aircraft grade aluminum, they are precisely machined to allow for quick and easy operation, and a low-profile position, when open, make these Flip-Back lens covers stand above the rest. The round objective and ocular models can be rotated so they can open in any direction. Scopes built prior to 2003 can be threaded to accept Alumina accessories at a 50% discount, with proof of purchase, through the Leupold Custom Shop by calling 800-538-7653.

Scope Cover, X-Large

Keep your Leupold® scope looking like new. Protect its finish from dirt and damage with one of our scope covers. Available in many sizes to fit most Leupold scopes, the scope cover is made of water-resistant, nylon-laminated neoprene. Protect your scope in storage or in the field.

View All Hunting & Shooting Scopes

Fixed Power Riflescopes

2.30x 28.00mm No No No $389.00
4.00x 33.00mm No No No $389.00
5.90x 36.00mm No Yes No $389.00
6.00x 42.00mm No Yes No $519.00
11.80x 40.00mm Yes Yes No $649.00