Description
Rifle Scope Product Details
BARSKA 1.5-4.5×20, Tactical Mil-Dot Riflescope
Product Description
Barska’s Tactical Rifle Scope Series is well equipped with 1/2 MOA click value adjustment of the windage and elevation turrets. Barska’s proprietary Accu-Lock system securely locks the inner tube on all Tactical Series scope models for maximum control and accuracy shot after shot. The fully multi-coated optics furnish high-contrast, bright seeing with minimal aberration. Backed by Barska’s Limited Lifetime , with two 5/8 inch mounting rings, a black matte finish, and included flip-up scope caps.
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The scope comes with two durable, easy-to-use mounting rings.
BARSKA tactical scopes are designed to provide target shooters and hunters with finely attuned firing accuracy, and offer performance features like side adjustable parallax knobs and a first focal plane mil-dot reticle that allows you to estimate range at all power settings. The innovative optical company’s proprietary Accu-Lock system utilizes a coil spring positioned within the scope to securely affix the inner tube, allowing the scope to stay locked dead-on to the target, after repeated shots and even with intense recoil.
Specifications
1.5-to-4.5X magnification
75.7-foot field of view at 100 yards at 1.5X, 24.5-foot field of view at 100 yards at 4.5X
One-inch tube diameter
20-millimeter objective lens
11.9-to-4.4-millimeter exit pupil
10.3-inch length
12.6-ounce weight
Mil-dot reticle
3.3-inch eye relief
0.5-inch click value
Fully multi-coated optics
Water-, shock-, and fog-proof
Side adjustment, target-style knob for windage and elevation
Black matte finish
Includes scope caps, mounting rings, and lens cloth
Lifetime Warranty
This BARSKA optical product includes a limited lifetime manufacturer’s warranty against defects in materials and workmanship.
About BARSKA
BARSKA — with corporate offices, warehouse, and distribution in La Verne, CA — is a worldwide optics company offering an extensive line of precision sport and scientific products including binoculars, riflescopes, spotting scopes, telescopes, and microscopes. The company’s products are designed and built with the latest optical technology, allowing users to enjoy beloved outdoor activities even more, and achieve exacting results when studying objects large and small.
Rifle Scope Product Features
Tactical scopes performance features like side adjustable parallax knobs and first focal plane mil-dot reticle that allows you to estimate range at all power settings
Proprietary Accu-Lock system utilizes coil spring positioned within scope to securely affix inner tube, allowing scope to stay locked dead-on to target, after repeated shots and intense recoil
1.5-to-4.5X magnification, one-inch tube diameter, 20-millimeter objective lens, 11.9-to-4.4-millimeter exit pupil, 10.3-inch length, and 12.6-ounce weight
Water-, shock-, and fog-proof; side adjustment, target-style knob for windage and elevation; includes scope caps, mounting rings, and lens cloth
Includes limited lifetime manufacturer’s warranty
AC10770
Specs
Item: AC10770
Field of View(ft@100yds): 75.7ft@ 1.5x, 24.5ft@ 4.5x
Eye Relief: 3.3 inch
Exit Pupil: 11.9-4.4mm
Click Value: 1/2 MOA
Focal Plane: First
Length: 10.3″ ; Weight: 12.55 oz ; 1″ Tube Diameter
Included: Mounting Rings ; Scope Caps ; Lens Cloth
1.5-4.5x20mm Scope with First Focal Plane Mill-Dot Reticle
by Barska
The 1.5-4.5×20 IR Riflescope from Barska is a perfect choice for shooters who are looking for as much control as possible for extreme type shooting. This scope has been designed for accuracy, reliability and durability, offering an 1″ single tube construction with an Illuminated Mil-Dot Reticle in the first focal plane, allowing the size of the pattern to increase as the magnification is increased. The Rifle Scope’s Single tube construction provides high recoil capability with larger calibers.
1.5-4.5x Magnification
20mm Objective Lens
First Focal Plane (FFP)
Mil-Dot Reticle
Fully Multi-Coated Optics
5/8″ Mounting Rings
Accu-Lock System
Waterproof, Fogproof and Shockproof
Durable, Light Weight Riflescope
This 1.5-4.5×20 First Focal Plane riflescope is durable and lightweight, perfect for close distance hunting or target practice.
Accessories
The scope comes with included 5/8″ mounting rings, scope caps, and lens cloth.
Zoom Adjustment
1.5-4.5x adjustable zoom allows users to get up close to the target, suitable for mid- to short-range targeting.
Glass-Etched Reticle
The scope comes with First Focal Plane Mil Dot Glass-Etched Reticle, allowing reticle to maintain the same measurements at all magnifications.
AC10770 AC10776 AC10778 AC13026 AC12798 AC11872
Magnification 1.5-4.5x 6-20x 6.5-20x 1-6x 1-4x 1-4x
Objective Lens 20mm 50mm 40mm 24mm 24mm 28mm
Lens Coating Fully Multi-Coated Fully Multi-Coated Fully Multi-Coated Fully Multi-Coated Fully Multi-Coated Fully Multi-Coated
Click Value 1/2 MOA 1/4 MOA 1/4 MOA 1/2 MOA 1/2 MOA 1/2 MOA
Reticle First Focal Plane Mil-Dot First Focal Plane Illuminated Mil-Dot First Focal Plane Illuminated Mil-Dot First Focal Plane Illuminated HRS Illuminated HRS .223 BDC Illuminated Mil-Dot
Turret Capped Capped Capped External Locking External Locking External Locking
Length 10.3″ 16.3″ 16.0″ 10.5″ 9.84″ 10″
Product Weight 12.55 oz 26.87 oz 21.87 oz 20 oz 17.6 oz 16 oz
About the BARSKA Brand
BARSKA is a premium supplier for rifle scopes, optics, mounts, and other components used for guns like rifles and long guns. They design and make their mounts, scopes, and related products working with materials which are long lasting and durable. This includes the BARSKA 1.5-4.5×20, Tactical Mil-Dot Riflescope by BARSKA. For additional shooting products, visit their site.
Info About Rifle Optics
Rifle scopes allow you to precisely aim a rifle at various targets by aligning your eye with the target at range. They accomplish this through zoom by making use of a set of lenses inside the scope. The scope’s alignment can be adjusted to take into account many environmental considerations like wind speed and elevation increases to account for bullet drop.
The scope’s function is to understand exactly where the bullet will hit based upon the sight picture you are seeing through the optic as you line up the scope’s crosshair or reticle with the intended point of impact. The majority of modern-day rifle scopes have around eleven parts which are found inside and outside of the scope. These scope parts consist of the rifle scope’s body, lenses, elevation turrets, objective focus rings, and other elements. See all eleven parts of a scope.
The Varieties of Rifle Scopes
Rifle scopes can be either “first focal plane” or “second focal plane” type of scopes. Finding the finest type of rifle optic is based on what type of shooting you plan to do.
First Focal Plane Optics
First focal plane glass (FFP) feature the reticle before the magnifying lens. This induces the reticle to increase in size based upon the level of zoom being used. The outcome is that the reticle measurements are the same at the amplified range as they are at the non magnified distance. One tick on a mil-dot reticle at 100 yards without “zoom” is still the same tick at one hundred yards with 5x “zoom”. These types of scopes work for:
- Quick acquisition, long distance kinds of shooting
- Shooting circumstances where calculations are marginal
- Experienced shooters who recognize their aim point “hold over” plus “lead” ratios for their long guns
- Shooters who don’t mind the reticle is enlarged and takes up more visual sight area than a SFP reticle
Second Focal Plane Scope Details
Second focal plane scopes (SFP) feature the reticle behind the zoom lens. In the FFP example with the SFP scope, the 5x “zoom” one hundred yard tick would be 1/5th of the non “zoom” tick reticle measurement.
- Far away types of shooting where shooters have more time to make ballistic calculations
- Shooting where most of the shots happen within shorter ranges and distances
- Shooters who would like a clearer optic picture without space taken up by the larger size FFP reticle
Details on Rifle Scope Magnification
The quantity of zoom a scope provides is figured out by the diameter, density, and curvatures of the lenses inside of the rifle scope. The zoom of the scope is the “power” of the scope.
About Fixed Power Lens Optics
A single power rifle optic uses a zoom number designator like 4×32. This implies the magnification power of the scope is 4x power while the objective lens is 32mm. The magnification of this type of scope can not adjust given that it is a fixed power scope.
Variable Power Lens Rifle Scopes
Variable power rifle scopes can be adjusted between magnification increments. These types of scopes will note the zoom level in a format like 2-10×32. These numbers mean the zoom of the scope can be adjusted between 2x and 10x power. This also utilizes the power levels in-between 2 and 10. The power modification is accomplished using the power ring component of the scope near the back of the scope by the eye bell piece.
Rifle Glass Power Level and Ranges
Here are some suggested scope power levels and the ranges where they can be successfully used. High power glass will not be as efficient as lower magnification level scopes since too much magnification can be a bad thing. The same idea relates to longer ranges where the shooter needs adequate power to see precisely where to best aim the rifle.
Details on Scope Lens Covering
All modern-day rifle optic lenses are covered in special coatings. There are different types and qualities of glass finishes. When looking at high end rifle scope units, Lens covering can be an essential element of defining the capability of the rifle. The lenses are among the most important pieces of the scope considering that they are what your eye looks through while sighting a rifle in on the point of impact. The finish on the lenses safeguards the lens surface and also helps with anti glare from refracted natural light and color perception.
HD Versus ED Rifle Optic Lens Coatings
Some scope brands also use “HD” or high-definition lens coverings which use different techniques, chemicals, polarizations, and elements to draw out different colors and viewable quality through the lens. Some scope producers use “HD” to refer to “ED” indicating extra-low dispersion glass.
Scope Lens Single Finishing Versus Multi-Coating
Various optic lenses can even have various finishings applied to them. All lenses normally have at least some kind of treatment or covering applied to them prior to being used in a rifle scope or optic. Due to the fact that the lens isn’t just a raw piece of glass, they require performance enhancing coatings. It becomes part of the carefully tuned optic. It requires a coating to be applied to it so that it will be optimally functional in numerous kinds of environments, degrees of sunlight (full light VS shaded), and other shooting conditions.
Single layered lenses have a treatment applied to them which is normally a protective and enhancing multi-purpose treatment. This lens treatment can preserve 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 covered lens depends upon the scope manufacturer and the amount you spent on it. The scope’s maker and cost are signs of the lens quality.
Some scope makers similarly make it a point to specify if their optic lenses are covered or “multi” covered. Being “much better” depends on the producer’s lens treatment technology and the quality of materials used in developing the rifle scope.
Hydrophobic Lens Coatings
Water on a lens doesn’t assist with maintaining a clear sight picture through a scope at all. Many top of the line and high-end scope companies will coat their lenses with a hydrophobic or hydrophilic coating which is water repellent.
Alternatives for Mounting Glass on Long Guns
Installing approaches for scopes come in a couple of choices. There are the basic scope rings which are individually mounted to the scope and one-piece mounts which cradle the scope. These different kinds of mounts also usually can be found in quick release variations which use throw levers which enable rifle shooters to rapidly mount and dismount the scopes.
Hex Key Scope Rings
Standard, clamp style mounting scope rings use hex head screws to mount to the flattop style Picatinny scope mount rails on rifles. These types of scope mounts use two different rings to support the optic, and are made from 7075 T6 billet aluminum which is developed for long range precision shooting. This type of scope install is wonderful for rifles which require a durable, rock solid mounting solution which will not move no matter how much the scope is moved or abused.
Quick-Release Cantilever Glass Rings
These types of quick-release rifle scope mounts can be used to rapidly take off a scope from a rifle and reattach it to a different rifle. Multiple scopes can also be switched out if they all use a similar style mount. The quick detach design is CNC crafted from anodized 6061 T6 aluminum and the mounting levers connect nicely to a flat top style Picatinny rail. This permits the scope to be sighted in while on the rifle, removed from the rifle, and remounted while retaining the original sighting settings. These types of mounts come in beneficial for rifles which are moved a lot, to remove the glass from the rifle for protection, or for sight systems which are adopted in between a number of rifles. An example of this mount style is the 30mm mount from the Vortex Optics brand. It usually costs around $250 USD
Sealing and Gas Purging for Rifle Glass Tubes
Moisture inside your rifle glass can destroy a day of shooting and your costly optic by triggering fogging and generating residue inside of the scope tube. The majority of optics prevent humidity from going into the scope tube with a series of sealing O-rings which are water resistant. Generally, these scopes can be immersed within 20 or 30 feet of water before the water pressure can push moisture past the O-rings. This should be sufficient moisture content avoidance for basic use rifles for hunting and sporting purposes, unless you anticipate taking your rifle aboard watercrafts and are concerned about the scope still working if it is submerged in water and you can still recover the gun.
About Rifle Optic Tube Gas Purging
Another part of avoiding the accumulation of wetness inside of the rifle scope’s tube is filling the tube with a gas like nitrogen. Considering that this space is already occupied by the gas, the optic is less affected by temperature shifts and pressure distinctions from the external environment which could possibly enable water vapor to leak 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.
