Description
Rifle Scope Product Details
Crimson Trace Optics Tactical Riflescope 4-20x50mm MIL/FFP with LR1-MIL with Illuminated Reticle, 3 Series CTL-3420
The CTL-3420 3 Series is a feature rich 4-20x50mm mid-range rifle scope that has been purposefully built from the ground up. The scopes First Focal Plane (FFP) and impressive Japanese ED Glass clarity makes for an unparalleled shooting experience. The custom designed LR1-MIL advanced reticle is fully illuminated and offers quick hold-over points for wind age and elevation. The exposed . 1 MIL tactical turrets provide a precise and rugged feel when dialing for the most accurate of shots. The entire Crimson Trace scope line offers EZ mount leveling indicators for quick and exact mounting and rare tech (Red alignment ring) for proper eye placement. All Crimson Trace Scopes are covered under a Full Lifetime Warranty.
Rifle Scope Product Features
POWER: The 4-20x50mm scope makes objects seem four to twenty times closer than with the naked Eye, featuring a 50mm objective lens.
FIRST FOCAL PLANE (FFP): Glass Etched, LR1-MIL Advanced Illuminated Reticle sits in front of the magnification mechanism, scaling to provide correct Ballistic hold points at any range.
EXPOSED TURRETS WITH LR1-MIL ADVANCED RETICLE:
QUALITY MANUFACTURING: Single piece 30mm anodized aluminum main tube is constructed to handle the most demanding environments.
: Crimson Trace Lifetime protection and free batteries for life s a Lifetime of performance.
GUARANTEED: All Crimson Trace Scopes are covered under a Full Lifetime Warranty. For questions or warranty contact us at support@crimsontrace.com
Products to Elevate Your Confidence in Moments That Matter
In 1994, Crimson Trace developed and sold its first laser sight – an internal system for GLOCK pistols, known as the GLS. Two years later, the newly patented, user-installed Lasergrips product line was unveiled at the 1996 SHOT Show. Over the years, the engineers at CTC have been dedicated to constant improvement and the evolution of products. As we approach our 25th year, Crimson Trace is pleased to add electronic sights, precision riflescopes and sporting riflescopes to our collection.
Complete Focus
Red Dots
Fast acquisition and reliable construction is offered in a full line of red dots and reflex sights
Lasers
Award winning lasers easily fit on your weapon and ensure accuracy in the most pivotal moments
Riflescopes
From large to small, first focal to second, the glass in the CTC riflescopes are clear, precise and on target
About the Crimson Trace Manufacturer
Crimson Trace is a premium supplier for long gun scopes, optics, mounts, and other accessories used for firearms like rifles and long guns. They innovate and make their scopes, mounts, and related products making the most of building materials which are resilient and long lasting. This includes the Crimson Trace Optics Tactical Riflescope 4-20x50mm MIL/FFP with LR1-MIL with Illuminated Reticle, 3 Series CTL-3420 by Crimson Trace. For additional shooting items, visit their website.
What You Need to Know About Optics
Rifle scopes permit you to exactly aim a rifle at different targets by lining up your eye with the target over a distance. They do this through zoom by employing a set of lenses inside the scope. The scope’s alignment can be adjusted to take into account separate ecological considerations like wind speed and elevation increases to account for bullet drop.
The scope’s function is to help shooters understand precisely where the bullet will land based upon the sight picture you are viewing with the scope as you line up the scope’s crosshair or reticle with the intended point of impact. Most modern-day rifle optics have around 11 parts which are arranged internally and externally on the optic. These scope parts consist of the rifle scope’s body, lenses, windage and elevation turrets, focus rings, and other elements. Learn about the eleven parts of glass.
Rifle Scope Varieties
Rifle scopes can be either “first focal plane” or “second focal plane” type of scopes. The style of focal plane an optic has establishes where the reticle or crosshair is located relative to the scopes zoom. It simply suggests the reticle is behind or before the magnifying lens of the scope. Selecting the most reliable type of rifle glass is dependent on what type of shooting or hunting you plan on undertaking.
First Focal Plane Optics
First focal plane optics (FFP) feature the reticle ahead of the magnification lens. This causes the reticle to increase in size based on the level of magnification being used. The result is that the reticle measurements are the same at the amplified range as they are at the non amplified distance. One tick on a mil-dot reticle at 100 yards with no “zoom” is still the very same tick at 100 yards with 5x “zoom”. These types of scopes are valuable for:
- Quick acquisition, far away kinds of shooting
- Shooting situations where calculations are small
- Experienced shooters who know their aim point “hold over” and “lead” relationships for their long guns
- Shooters who don’t mind the reticle is enlarged and takes up more visual sight space than a SFP reticle
Second Focal Plane Optic Details
Second focal plane optics (SFP) include the reticle to the rear of the magnification lens. This causes the reticle to remain at the exact same overall size in connection with the volume of zoom being used. The final result is that the reticle measurements shift based upon the magnification chosen to shoot over lengthier distances considering that the reticle markings represent distinct increments which differ with the zoom. In the FFP illustration with the SFP glass, the 5x “zoom” 100 yard tick would be 1/5th of the non “zoom” tick reticle measurement. These particular types of glass work for:
- Far away kinds of shooting where shooters have extra time to make ballistic computations
- Shooting where most shots take place within shorter ranges and distances
- Shooters who like a clearer optic sight picture without space taken up by the larger size FFP reticle
About Glass Magnification
The amount of magnification a scope supplies is figured out by the size, thickness, and curvatures of the lenses inside of the rifle scope. The zoom of the scope is the “power” of the scope.
Single Power Lens Glass
A single power rifle scope or optic will have a zoom number designator like 4×32. This indicates the magnification power of the scope is 4x power while the objective lens is 32mm. The magnification of this type of scope can not fluctuate since it is a set power scope.
Info on Variable Power Lens Optics
Variable power rifle scopes can be adjusted between magnification power levels. These types of scopes will list the zoom level in a configuration like 2-10×32. These numbers mean the magnification of the scope could be adjusted in between 2x and 10x power. This additionally incorporates the powers in-between 2 and 10. The power manipulation is accomplished using the power ring component of the scope near the back of the scope by the eye bell piece.
The Power Level and Range of Optics
Here are some advised scope powers and the distances where they could be effectively used. Always remember that higher power scopes will not be as effective as lower magnification level scope and optics because increased zoom can be a negative thing in certain situations. The exact same concept goes for extended ranges where the shooter needs enough power to see where to properly aim the rifle.
Lens Coating for Optics
All modern rifle optic lenses are coated. There are different types and qualities of glass lens coatings. When researching high end rifle optics and scope units, Lens finishing can be an important aspect of defining the capability of the rifle. The lenses are among the most essential pieces of the glass due to the fact that they are what your eye sees through while sighting a rifle in on the point of impact. The covering on the lenses protects the lens surface area as well as assists with anti glare from refracted direct sunlight and color profiles.
HD Versus ED Rifle Scope Lens Coatings
Some rifle glass manufacturers also use “HD” or high-def glass finishes that make the most of various processes, polarizations, elements, and chemicals to enhance separate color ranges and viewable target definition through lenses. This high-def covering is frequently used with higher density glass which lowers light’s ability to refract through the lens glass. Some scope suppliers use “HD” to refer to “ED” suggesting extra-low dispersion glass. ED handles how colors are presented on the chroma spectrum and the chromatic difference or aberration which is also called color distortion or fringing. Chromatic aberration may be visible around things with well defined outlines as light hits the object from specific angles.
Rifle Glass Lens Single Finish Versus Multi-Coating
Various optic lenses can even have different finishings applied to them. All lenses typically have at least some type of treatment or covering applied to them before they are used in a rifle scope or optic. This is due to the fact that the lens isn’t just a raw piece of glass. It is part of the finely tuned optic. It needs to have a covering put on it so that it will be optimally usable in lots of kinds of environments, degrees of sunshine (full VS shaded), and other shooting conditions.
Single layered lenses have a treatment applied to them which is generally a protective and boosting multi-purpose treatment. This lens treatment can shield the lens from scratches while lowering glare and other less advantageous things experienced in the shooting environment while sighting in with the scope. The quality of a single coated lens depends on the scope maker and how much you spent paying for it. Both the make and cost are indications of the lens quality.
Some scope producers also make it a point to define if their optic lenses are covered or “multi” covered. Being “better” depends on the producer’s lens treatment innovation and the quality of materials used in building the rifle scope.
Hydrophobic Finish for Scopes
Water on a lens doesn’t assist with preserving a clear sight picture through a scope at all. Numerous top of the line and high-end optic companies will coat their lenses with a hydrophobic or hydrophilic finish.
Options for Mounting Optics on Long Guns
Installing approaches for scopes are available in a couple of choices. There are the standard scope rings which are individually installed to the scope and one-piece scope mounts which cradle the scope. These different types of mounts also normally are made in quick release versions which use toss levers which enable rifle shooters to quickly mount and remove the scope.
Rifle Scope Mounts with Hex Key Rings
Basic, clamp-on style mounting optic rings use hex head screws to install to the flattop design Picatinny scope mount rails on the tops of rifles. These varieties of scope mounts use two separate rings to support the scope, and are made from 7075 T6 billet aluminum which are designed for long distance precision shooting. This kind of scope mount is very good for rifle systems which are in need of a durable, hard use mount which will not change despite how much the scope is moved about or jarring the rifle takes. These are the design of mounts you should get for a faithful scope system on a reach out and touch someone scouting or tournament long gun which will hardly ever need to be altered or adjusted. Blue 242 Loctite threadlocker can additionally be used on the mount screws to keep the hex screw threads from backing out after they are mounted safely in position. An example of these rings are the 30mm style from Vortex Optics. The set usually costs around $200 USD
Optic Mounts with Quick-Release Cantilever Rings
These types of quick-release rifle scope mounts can be used to quickly attach and take off a scope from a rifle before reattaching it to a different rifle. Numerous scopes can also be swapped out if they all use a compatible style mount. These types of mounts are handy for long guns which are transported a lot, to swap out the optic from the rifle for protection, or for optics which are used between several rifles or are situationally focused.
Rifle Optic Tube Sealing and Gas Purging
Wetness inside your rifle optic can ruin a day of shooting and your pricey optic by causing fogging and creating residue inside of the scope tube. Many scopes prevent moisture from entering the scope tube with a system of sealing O-rings which are waterproof.
Optic Gas Purging
Another component of avoiding the buildup of wetness inside of the rifle scope’s tube is filling the tube with a gas like nitrogen. Given that this space is already taken up by the gas, the optic is less affected by temp shifts and pressure variations from the external environment which could potentially permit water vapor to seep in around the seals to fill the vacuum which would otherwise be there. These are good qualities of a good rifle scope to seek out.









