Description
Rifle Scope Product Details
CVLIFE 3-9×40 Optics R4 Reticle Crosshair Scope with 20mm Free Mounts
Rifle Scope Product Features
About this item
Specification: 3-9×40
Magnification: 3-9x
Objective Diameter: 1.57
Exit pupil: 0.2
Length: 12.20
SHARP, CLEAR, BRIGHT – CVLIFE SCOPE
CVLIFE has scopes that can perform in any condition and environment. CVLIFE’S Fully-Multi coated lenses can deliver an amazing 95 percent light transmission across 300 percent more of the visual light spectrum for a high-contrast and color accurate picture, ensuring that the picture stays visible by keeping fog, rain and dirt off the lenses so you never miss a moment.
Use Friendly 3-9X Power Ring
Precise Elevation & Windage Adjustment Turrets
20mm (0.79 Inches) Picatinny Mount
“CVLIFE 3-9×40 R4 Reticle Crosshair Scope with Free Mounts
Specification of the Scope
Magnification: 3-9x
Objective Diameter: 1.57″ (40mm)
Exit pupil: 0.2″-0.67″ (5.1mm-16.9mm)
Length: 12.20″(31cm)
Weight: 0.76lb.(345g)
Tube diameter: 1″ (25.4mm)
Free Offer Rail Mounts: 0.79″(20mm)
Mount ring dia. 1″ (25.4mm)
Special Inner and Outer Structure
The scope includes a Special inner and outer structure to control the interaction between the inner and outer tubes of the scope, which provides long lasting reliability in these interaction and ensures the reticle would not rotate when adjusting. This smart design makes the scope shockproof and provides more precise windage and elevation adjustment.
Built on an ultra strong 1 inch machined-aluminum tube. Completely sealed and 100% nitrogen filled makes it fog and rain proof. This scope could be used under any weather condition.
Superior Images Available
Fully multicoated glass provides over 90% light transmission, brilliant images and exceptional color contrast.
Scratch-resistant coating protects exterior lenses from scratches, oil and dirt
Package Includes
1 x 3-9×40 Scope
1 x Lens Cover
1 x Allen Key
2 x Scope Mounts for 20mm Rail
CVLIFE 3-9×40 rifle scope CVLIFE 3-9x40AO rifle scope CVLIFE 3-9×40 Compact Rifle Scope CVLIFE 2.5-10×40 Illuminated Scope with Red Laser CVLIFE 4×32 Illuminated Scope with Fiber Optic Sight
Reticle Fine Duplex Mil dot Mil dot Mil dot Mondern Range Finding
Objective Diameter 1.57″ (40mm) 1.57″ (40mm) 1.57″ (40mm) 1.57″ (40mm) 1.26”(32mm)
Tube diameter 1″ 1″ 1″ 1.57”
With AOAdjustable Objective x x x x
Illuminated Reticle x x x
Reticle Color Black Black Black Red & Green Red & Green & Blue
Size 12.20″(31cm) 12.20″(31cm) 7.48″ (19cm) 8.5”(21.6cm) 2.5”(14cm)
About the CVLIFE Brand
CVLIFE is a premium producer for weapon scopes, optics, mounts, and other components used for guns like rifles and long guns. They innovate and make their mounts and related products by choosing elements which are long lasting and durable. This includes the CVLIFE 3-9×40 Optics R4 Reticle Crosshair Scope with 20mm Free Mounts by CVLIFE. For additional shooting goods, visit their website.
What You Need to Know About Rifle Glass
Rifle scopes permit you to specifically aim a rifle at different targets by lining up your eye with the target at range. They do this through magnifying the target by using a set of lenses within the scope. The scope’s positioning can be dialed in for the consideration of numerous environmental elements like wind speed and elevation to account for bullet drop.
The scope’s function is to understand exactly where the bullet will hit based on the sight picture you are seeing through the scope as you align the scope’s crosshair or reticle with the intended point of impact. The majority of modern-day rifle scopes and optics have about eleven parts which are located internally and externally on the optic. These optic pieces include the rifle scope’s body, lenses, adjustment dials or turrets, focus rings, and other parts. Learn about the eleven parts of optics.
Rifle Optic Styles
Rifle scopes can be either “first focal plane” or “second focal plane” type of scopes. Choosing the optimal type of rifle scope is based on what type of shooting you plan to do.
First Focal Plane Optic Details
Focal plane scopes (FFP) come with the reticle in front of the zoom lens. This induces the reticle to increase in size based upon the amount of magnification being used. The outcome is that the reticle measurements are the same at the amplified distance as they are at the non amplified distance. One tick on a mil-dot reticle at one hundred yards without “zoom” is still the same tick at 100 yards by using 5x “zoom”. These types of scopes are beneficial for:
- Quick acquisition, long distance kinds of shooting
- Shooting scenarios where calculations are low
- Experienced shooters who have an idea for their aim point “hold over” plus “lead” equations for their long gun
- Shooters who don’t mind the reticle is enlarged and uses up more visual eyesight area than a SFP reticle
Info on Second Focal Plane Optics
Second focal plane scopes (SFP) include the reticle to the rear of the zoom lens. In the FFP example with the SFP scope, the 5x “zoom” one hundred yard tick reticle measurement would be 1/5th of the non “zoom” tick reticle measurement.
- Long distance styles of shooting where shooters have extra time to make ballistic estimations
- Shooting where most of the shots happen within much shorter spaces and ranges
- Shooters who desire a clearer optic picture with less area taken up by the bigger FFP reticle
Rifle Scope Zoom
The amount of magnification a scope supplies is determined 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 Optics
A single power rifle optic and scope comes with a magnification number designator like 4×32. This means the zoom power of the scope is 4x power and the objective lens is 32mm. The magnification of this kind of optic can not adjust since it is set from the factory.
Variable Power Lens Rifle Scopes
Variable power rifle scopes can be tweaked between magnified levels. The power change is accomplished by the power ring part of the scope near the back of the scope by the eye bell.
The Power and Range Correlation of Glass
Here are some advised scope power settings and the distances where they could be successfully used. Always remember that high magnification glass will not be as practical as lower magnification level glass because excessive zoom can be a detractor. The same concept applies to longer ranges where the shooter needs to have sufficient power to see precisely where to best aim the rifle.
Lens Coating for Optics
All present day rifle optic lenses are layered. Lens finishing can be a crucial aspect of a shooting platform when looking into high end rifle optics and scope systems.
ED Versus HD Scopes
Some rifle scope companies also use “HD” or high-def glass finishings which use various processes, chemicals, aspects, and polarizations to enhance various color ranges and viewable definition through lenses. This high-def coating is frequently used with more costly, high density lens glass which decreases light’s opportunity to refract by means of the lens glass. Some scope manufacturers use “HD” to refer to “ED” indicating extra-low dispersion glass. ED handles how certain colors are presented on the chroma spectrum and the chromatic aberration or deviance which is also called color distortion or fringing. Chromatic aberration can be noticeable over items with hard edges and shapes as light hits the object from particular angles.
Single Finishing Versus Multi-Coating for Scopes
Various scope lenses can also have different finishings applied to them. All lenses generally have at least some kind of treatment or finishing applied to them prior to being used in a rifle scope or optic assembly. Since the lens isn’t simply a raw piece of glass, they require performance enhancing coatings. It is part of the finely tuned optic. It needs to have a finishing placed on it so that the lens will be optimally functional in numerous kinds of environments, degrees of sunshine (full light VS shaded), and other shooting conditions.
Single coated 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 decreasing glare and other less advantageous things experienced in the shooting environment while sighting in with the scope. The quality of a single layered lens depends on the scope company and just how much you spent paying for it. The scope’s maker and cost are indicators of the lens quality.
Some scope producers also make it a point to specify if their optic lenses are coated or “multi” coated. This indicates the lens has multiple treatments applied to them. If a lens receives numerous treatments, it can prove that a maker is taking multiple actions to combat different environmental factors like an anti-glare coating, a scratch resistant anti-abrasion finish, followed by a hydrophilic coating. This additionally doesn’t always suggest the multi-coated lens is better than a single coated lens. Being “much better” depends upon the maker’s lens treatment innovation and the quality of glass used in developing the rifle optic.
Anti-water Rifle Scope Lens Finish
Water on a lens doesn’t assist with preserving a clear sight picture through a scope at all. Numerous top of the line and military grade scope companies will coat their lenses with a hydrophilic or hydrophobic finish.
Alternatives for Installing Rifle Optics on Long Guns
Mounting solutions for scopes can be found in a few choices. There are the basic scope rings which are individually mounted to the optic and one-piece scope mounts which cradle the scope. These different types of mounts also typically can be found in quick release variations which use throw levers which permit rifle operators to quickly install and dismount the scope.
Glass Mounting Solutions with Hex Key Rings
Basic, clamp type mounting scope rings use hex head screws to fix to the flattop style Picatinny scope mount rails on the tops of rifles. These kinds of scope mounts use two independent rings to support the optic, and are normally made from 7075 T6 billet aluminum or similar materials which are manufactured for long distance accuracy shooting. This kind of scope mount is good for rifle systems which are in need of a resilient, hard use mount which will not change regardless of how much the scope is moved about or jarring the rifle takes. These are the type of mounts you really want to have for a faithful scope setup on a long distance hunting or hard target interdiction long gun which will hardly ever need to be changed or recalibrated. Blue 242 Loctite threadlocker can also be used on the screws to stop the hex screw threads from wiggling out after they are mounted securely in place. An example of these rings are the 30mm style made by Vortex Optics. The set normally costs around $200 USD
Glass Mounting Solutions with Quick-Release Cantilever Rings
These types of quick-release rifle scope mounts can be used to quickly attach and remove a scope from a rifle before reattaching it to a different rifle. Numerous scopes can also be switched out if they all use a compatible design mount. These types of mounts come in handy for rifles which are transferred a lot, to remove the optic from the rifle for protecting the scope, or for scopes which are used between several rifles.
Sealing and Gas Purging for Scope Tubes
Moisture inside your rifle scope can ruin a day of shooting and your expensive optic by bringing about fogging and producing residue inside of the scope tube. A lot of scopes prevent wetness from going into the scope tube with a system of sealing O-rings which are waterproof.
Rifle Glass Gas Purging
Another element of preventing the buildup of moisture inside of the rifle scope tube is filling the tube with a gas like nitrogen. Considering that this space is already occupied by the gas, the scope is less altered by climate alterations and pressure differences from the external environment which might potentially enable water vapor to permeate in around the seals to fill the vacuum which would otherwise be there. These are good qualities of a decent rifle scope to seek out.
