Description
Rifle Scope Product Details
BARSKA 3-9×42 IR Contour Riflescope, Black
Product Description
Performance that doesn’t stop short. Barska’s Contour Series meets the hunters demands by combining performance and innovation into a compact riflescope without sacrificing ruggedness, dependability or craftsmanship. Contour Scopes offer low magnification combined with long eye relief making them ideal for close range action, from cross-bow hunting to pistol shooting even down to simple rimfire action. The Contour Series of scopes are engineered with extra rigid shockproof construction to handle the demands of pistols, shotguns, and other types of high recoil firearms. This series is a clear winner for various types of shooters and hunters in the field.
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The Barska 3-9×42 IR Contour Riflescope is a compact, lightweight scope providing precision accuracy beyond its size. The 42mm objective lens provides three to nine times variable magnification with an extremely long eye relief. This rifle scope is completely fog-proof and waterproof for even the toughest of weather conditions. The fully-coated optics with illuminated 4A Mil-Plex reticles allow for enhanced performance. The extra rigid, shockproof construction gives you even more control and accuracy. Bonus accessories include a set of 7/8-inch Picatinny base rings with scope caps.
Rifle Scope Product Features
About this item
Precision Aiming: The 3-9x magnification scope features 1/4 MOA click adjustments for precision accuracy.
Quality Construction: The scope comes with fully-coated optics, providing impressive viewing clarity. Tube diameter 1″.
Illuminated Reticle: The illuminated 4A mil-plex reticle with adjustable brightness can be used to target with ease.
BDC Adjustment: The external range drum rotates for desired range and trajectory, allowing quick . 223 BDC adjustments.
Robust Design: The scope is built with extra-rigid construction, being waterproof, fogproof, and shockproof. Set of 7/8″ rings included.
AC10634
Specs
Item: AC10634
Field of View(ft @ 100yds): 36.7ft @ 3x, 12.5ft @ 9x
Eye Relief: 3.9″
Exit Pupil: 14.0-4.6mm
Click Value: 1/4 MOA
Focal Plane: Second
Length: 9.8″ ; Weight: 16 oz ; 1″ Tube Diameter
Included: Set of 7/8″ picatinny / weaver rings ; scope caps ; lens cloth
3-9x42mm IR B.D.C. Contour Compact External Range Drum Rifle Scope
by Barska
The 3-9×42 Contour Riflescope from Barska combines performance and innovation in a compact scope without sacrificing dependability, durability or workmanship. Offering low magnification with reasonable eye relief, this riflescope is ideal for AR-15, M-16, crossbows, pistols, and more. Engineered with rigid shockproof construction, the Contour can even handle the demands of shotguns and other high recoil weapons. Riser mount not included.
3-9x Magnification
42mm Objective Lens
Fully-coated Optics
Waterproof, Fogproof and Shockproof
Illuminated 4A Mil-plex
7/8″ Picatinny / Weaver Rings
Durable, Light Weight Riflescope
This 3-9×42 Contour riflescope is durable and lightweight, perfect for hunting or target practice.
Illuminated Reticle
The scope comes with Illuminated 4A Mil-Plex Reticle, allowing the shooter to target in different lighting environments with high accuracy.
Zoom Adjustment
3-9x adjustable zoom allows users to get up close to the target, suitable for mid- to short-range targeting.
BDC Elevation
The external range drum rotates for desired range, allowing .223 BDC range and trajectory adjustments for accurate aiming.
AC10634 AC10552 CO11538 AC11386 AC11204 AC10014
Magnification 3-9x 3-9x 3-9x 3-9x 3-9x 3-9x
Objective Lens 42mm 42mm 40mm 40mm 40mm 42mm
Lens Coating Fully Coated Fully Coated Fully Coated Fully Multi-Coated Fully Coated Fully-Coated
Click Value 1/4 MOA 1/4 MOA 1/4 MOA 1/4 MOA 1/4 MOA 1/4 MOA
Reticle Illuminated 4A Mil-plex Illuminated Mil-Dot 30/30 3G 30/30 4A
Turret Capped BDC Capped Capped External BDC Capped Capped
Length 9.8″ 9.13″ 11.9″ 12.5″ 12.2″ 12.6″
Product Weight 16 oz 16 oz 12.2 oz 21.16 oz 12.9 oz 16.9 oz
About the BARSKA Brand
BARSKA is a premium company for long gun scopes, optics, mounting solutions, and other components used for guns like rifles and long guns. They style and make their scopes, mounts, and related products using building materials which are resilient and long lasting. This includes the BARSKA 3-9×42 IR Contour Riflescope, Black by BARSKA. For additional shooting products, visit their website.
What You Need to Know About Rifle Scopes
Rifle scopes permit you to specifically align a rifle at various targets by aligning your eye with the target over a distance. They do this through zoom using a series of lenses within the scope. The scope’s positioning can be adjusted for consideration of numerous natural factors like wind speed and elevation increases to make up for bullet drop.
The scope’s purpose 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 rifle scopes have around 11 parts which are located inside and externally on the scope body. These scope parts include the rifle scope’s body, lenses, modification dials, focus rings, and other elements. Learn about the eleven parts of optics.
Rifle Optic Varieties
Rifle scopes can be either “first focal plane” or “second focal plane” type of optics. Choosing the optimal type of rifle optic depends on what type of shooting you plan on doing.
About First Focal Plane Glass
Focal plane scopes (FFP) feature the reticle in front of the zoom lens. These kinds of scopes are helpful for:
- Quick acquisition, far away types of shooting
- Shooting situations where calculations are low
- Experienced shooters who have an idea for their target “hold over” as well as “lead” correlations for their firearm
- Shooters who do not mind the reticle is enlarged and requires more visual sight space than a SFP reticle
Second Focal Plane Optics
Second focal plane optics (SFP) come with the reticle to the rear of the zoom lens. In the FFP example with the SFP scope, the 5x “zoom” 100 yard tick reticle measurement would be 1/5th of the non “zoom” tick measurement.
- Far away styles of shooting where shooters have increased time to make ballistic estimations
- Shooting where most of the shots occur within much shorter proximities and ranges
- Shooters who want a clearer optic picture without area used up by the larger size FFP reticle
Rifle Glass Zoom
The quantity of scope magnification you require depends on the kind of shooting you desire to do. Just about every type of rifle scope offers some level of zoom. The volume of magnification a scope offers is determined by the size, density, and curvatures of the lenses inside of the rifle optic. The magnification level of the scope is the “power” of the scope. This signifies what the shooter is observing through the scope is amplified times the power element of what can usually be seen by human eyes.
Fixed Single Power Lens Optic Info
A single power rifle optic or scope will have a magnification number designator like 4×32. This implies the zoom power of the scope is 4x power and the objective lens is 32mm. The magnification of this kind of scope can not fluctuate because it is a fixed power scope.
Variable Power Lens Glass
Variable power rifle scopes can be changed between magnification increments. These types of scopes will list the magnification degree in a format like 2-10×32. These numbers suggest the magnification of the scope could be changed in between 2x and 10x power. This also utilizes the power levels in-between 2 and 10. The power shift is achieved utilizing the power ring part of the scope near the back of the scope by the eye bell piece.
Optic Power and Range Correlation
Here are some suggested scope powers and the distances where they could be efficiently used. Highly magnified glass will not be as efficient as lower magnification level glass since too much magnification can be a bad thing. The exact same concept relates to extended ranges where the shooter needs sufficient power to see precisely where to best aim the rifle.
Glass Lens Finishing
All current rifle optic and scope lenses are layered. Lens covering can be an important aspect of a shooting system when thinking about high end rifle optics and scope setups.
HD Versus ED Lens Coatings
Some rifle scope manufacturers will also use “HD” or high-definition lense finishings that apply various procedures, polarizations, rare earth compounds, and aspects to enhance different colors and viewable target visibility through the lens. This high-def covering is frequently used with greater density glass which reduces light’s potential to refract by means of the lens glass. Some scope brands use “HD” to describe “ED” implying 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 can be visible around items with well defined shapes as light hits the item from certain angles.
Single Coating Versus Multi-Coating
Different optic lenses can also have different finishings applied to them. All lenses usually have at least some type of treatment or finish applied to them prior to being used in a rifle scope or optic.
Single covered lenses have a treatment applied to them which is generally a protective and boosting multi-purpose treatment. This lens treatment can preserve the lens from scratches while decreasing glare and other less helpful things experienced in the shooting environment while sighting in with the optic. The quality of a single covered lens depends on the scope developer and how much you spent paying for it. Both the manufacturer and amount are indicators of the lens quality.
Some scope makers also make it a point to specify if their optic lenses are coated or “multi” coated. This suggests the lens has several treatments applied to the surfaces. If a lens receives multiple treatments, it can indicate that a manufacturer is taking multiple actions to fight various environmental aspects like an anti-glare finishing, a scratch resistant anti-abrasion finish, followed by a hydrophilic finish. This also does not necessarily indicate the multi-coated lens is better than a single coated lens. Being “better” depends upon the manufacturer’s lens treatment techniques and the quality of components used in building the rifle scope.
Hydrophobic Finish for Glass
Water on an optic’s lens does not assist with maintaining a clear sight picture through an optic in any way. Lots of top of the line or premium scope makers will coat their lenses with a hydrophobic or hydrophilic finish. The Steiner Optics Nano-Protection is a good example of this sort of treatment. It treats the surface of the Steiner glass lens so the H2O particles can not bind to it or develop surface tension. The result is that the water beads roll off of the scope to preserve a clear, water free sight picture.
Choices for Mounting Rifle Scopes on Firearms
Mounting approaches for scopes are available in a few choices. There are the basic scope rings which are separately mounted to the optic and one-piece scope mounts which cradle the scope. These various types of mounts also usually are made in quick release variations which use throw levers which enable rifle shooters to rapidly install and remove the scope.
Hex Key Rifle Optic Ring Mounts
Standard, clamp-on design mounting optic rings use hex head screws to mount to the flattop design Picatinny scope mount rails on the tops of rifles. These styles of scope mounts use a pair of individual rings to support the scope, and are made from 7075 T6 billet aluminum or similar materials which are made for long distance accuracy shooting. This type of scope mount is excellent for rifle systems which need a durable, rock solid mount which will not change regardless of just how much the scope is moved about or abuse the rifle takes. These are the style of mounts you really want to have for a faithful scope setup on a far away hunting or hard target interdiction rifle that will rarely need to be changed or recalibrated. Blue 242 Loctite threadlocker can also be used to stop the hex screw threads from wiggling out after they are mounted securely in position. An example of these rings are the 30mm type made by the Vortex Optics company. The set normally costs around $200 USD
Scope Mounting Solutions with Quick-Release Cantilever Rings
These types of quick-release rifle scope mounts can be used to rapidly remove a scope and connect it to a different rifle. Numerous scopes can even be switched out if they all use a similar style mount. These types of mounts come in handy for rifle platforms which are carried a lot, to swap out the optic from the rifle for protection, or for scopes which are used in between multiple rifles.
Info on Rifle Glass Tube Sealing and Gas Purging
Moisture inside your rifle optic can spoil a day of shooting and your expensive optic by causing fogging and producing residue inside of the scope tube. The majority of optics prevent wetness from going into the scope tube with a system of sealing O-rings which are water resistant. Usually, these water-resistant scopes can be immersed beneath 20 or 30 feet of water before the water pressure can force moisture past the O-rings. This should be more than enough moisture content prevention for basic use rifles for hunting and sporting purposes, unless you plan on taking your rifle sailing and are concerned about the optic still working if it is submerged in water and you can still recover the rifle.
About Scope Tube Gas Purging
Another component of preventing the buildup of wetness within the rifle optic’s tube is filling the tube with a gas like nitrogen. Given that this area is already occupied by the gas, the optic is less influenced by climate alterations and pressure differences from the external environment which might 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 decent rifle scope to look for.
