Last update on June 4, 2023 // Source: Amazon API
Rifle Scope Product Details
AGM 20RD Red Dot Sight
AGM 4501XX16PRDS20 Model 20RD Professional Red Dot Sight, 1x Magnification, Objective 23mm x 16mm, Field of View 15.7m at 100m, Unlimited Eye Relief, 2 MOA Red Dot, Polished/Coated Lenses
The 20RD is the perfect sight for anyone in need of a lightweight and compact optic for a low price. These Red Dot Sights 20RD have a 2 MOA dot to get you on target and keep you there. The durable housing is both shock and fog resistant with maximum reliability. For a sight that won’t let you down – when you need it the most – at a price that won’t break the bank, choose the 20RD Miniature Red Dot Sight.
2 MOA Red Dot
Reticle: Red dot Illuminated
Attachment/Mount Type: Picatinny
Package Type: Box
Objective: 23mm x 16mm
Field of View: 15.7m at 100m
Eye Relief: Unlimited
Battery Type: CR 2032
Battery Life: 20,000 Hours
Operating Temperature: -10 to 50 ( 14° to 122°F)
Weather Resistance: Fog Resistant
Dimensions: 45 x 35 x 30 mm (1.7″ x 1.4″ x 1.2″)
Weight: 55 g (1.94 oz)
Rifle Scope Product Features
1x Magnification, Objective 23mm x 16mm
Field of View 15.7m at 100m, Unlimited Eye Relief
2 MOA Red Dot, Polished/Coated Lenses
Picatinny Mount, Shock Resistant, Fog Resistant
ITAR Compliance: *Export of this product outside of the United States of America is not allowed and is controlled by the US Department of State. By adding to Cart, You confirm that You are a U.S. Person and agree that You do not intend to Export this product. You also understand this product is regulated by the International Traffic in Arms Regulations (ITAR).
About the AGM Global Vision Brand
AGM Global Vision is a premium manufacturer for rifle scopes, optics, mounting solutions, and other add-ons used for guns like rifles and long guns. They design and make their scopes, mounts, and related products by choosing building materials which are long lasting and resilient. This includes the AGM 20RD Red Dot Sight by AGM Global Vision. For additional shooting goods, visit their site.
Rifle scopes allow you to specifically aim a rifle at different targets by lining up your eye with the target over a range. They do this through magnification by using a set of lenses inside the scope. The scope’s alignment can be dialed in to take into account separate environmental elements like wind speed and elevation increases or decreases to make up for bullet drop.
The scope’s purpose is to understand exactly where the bullet will hit based upon the sight picture you are viewing with the scope as you align the scope’s crosshair or reticle with the target. The majority of modern-day rifle scopes have about 11 parts which are arranged within and on the exterior of the scope body. These scope parts consist of the rifle scope’s body, lenses, elevation turrets or dials, focus rings, and other parts. See all eleven parts of an optic.
The Types of Rifle Scopes
Rifle scopes can be either “first focal plane” or “second focal plane” type of scopes. Going for the perfect type of rifle glass is based on what type of shooting you plan to do.
First Focal Plane Optics
Focal plane scopes (FFP) include the reticle in front of the zoom lens. These kinds of scopes are useful for:
- Quick acquisition, far away types of shooting
- Shooting situations where calculations are minimal
- Experienced shooters who recognize their aim point “hold over” and also “lead” ratios for their rifles
- Shooters who do not mind the reticle is enlarged and occupies more visual sight space than a SFP reticle
Second Focal Plane Scope Facts
Second focal plane optics (SFP) feature the reticle to the rear of the magnification lens. This causes the reticle to remain at the same dimensions in connection with the level of zoom being used. The outcome is that the reticle measurements alter based upon the magnification used to shoot over lengthier distances given that the reticle markings present different increments which differ with the magnification. In the FFP illustration with the SFP scope, the 5x “zoom” 100 yard tick measurement would be 1/5th of the non “zoom” tick. These particular types of glass are useful for:
- Long distance forms of shooting where shooters have increased time to make ballistic estimations
- Shooting where most shots occur within shorter ranges and proximities
- Shooters who desire a clearer optic picture without area taken up by the larger size FFP reticle
Magnification for Glass
The level of scope zoom you require depends upon the sort of shooting you would like to do. Nearly every type of rifle glass offers some degree of magnification. The level of magnification a scope supplies is identified by the diameter, density, and curvatures of the lenses within the rifle scope. The magnifying level of the scope is the “power” of the scope. This denotes what the shooter is looking at through the scope is amplified times the power aspect of what can normally be seen by human eyes.
About Single Power Lens Optics
A single power rifle scope will have a zoom number designator like 4×32. This suggests the zoom power of the scope is 4x power while the objective lens is 32mm. The magnification of this kind of optic can not change given that it is a fixed power scope.
Adjustable Power Lens Scopes
Variable power rifle scopes can be tweaked between magnified settings. The power modification is performed by making use of the power ring part of the scope near the rear of the scope by the eye bell.
The Power Level and Range of Rifle Optics
Here are some suggested scope powers and the ranges where they could be successfully used. High power glass will not be as useful as lower magnification glass since too much magnification can be a bad thing. The same relates to extended distances where the shooter needs sufficient power to see precisely where to best aim the rifle.
Info on Lens Finishing
All modern-day rifle optic lenses are layered. There are various types and qualities of coatings. When considering high end rifle optical devices, Lens covering can be a crucial element of defining the capability of the rifle. The lenses are one of the most crucial components of the scope considering that they are what your eye looks through while sighting a rifle in on the target. The covering on the lenses protects the lens exterior and also improves anti glare capabilities from excess sunrays and color discernibility.
HD Versus ED Lenses
Some glass suppliers will also use “HD” or high-definition lens coverings which apply different processes, polarizations, chemicals, and components to enhance a wide range of colors and viewable target visibility through the lens. This high-definition finish is commonly used with more costly, high density lens glass which brings down light’s opportunity to refract by means of the lens glass. Some scope corporations use “HD” to refer to “ED” meaning extra-low dispersion glass. ED handles how certain colors are represented on the chromatic spectrum and the chromatic aberration or deviance which is also called color distortion or fringing. Chromatic aberration can be obvious around objects with well defined outlines as light hits the item from particular angles.
Single Finish Versus Multi-Coating for Optics
Different optic lenses can also have different finishings applied to them. All lenses typically have at least some type of treatment or finish used to them before they are used in a rifle scope or optic.
Single coated lenses have a treatment applied to them which is generally a protective and boosting multi-purpose treatment. This lens treatment can safeguard the lens from scratches while lowering glare and other less beneficial things experienced in the shooting environment while sighting in with the scope. The quality of a single covered lens depends upon the scope company and the amount you paid for it. The scope’s maker and cost are indicators of the lens quality.
Some scope producers also make it a point to define if their optic lenses are coated or “multi” coated. Being “better” depends on the maker’s lens treatment innovation and the quality of products used in building the rifle scope.
Rifle Scope Lens Anti-water Covering
Water on a lens doesn’t help with keeping a clear sight picture through a scope at all. Many top of the line and high-end optic makers will coat their lenses with a hydrophobic or hydrophilic finishing.
Rifle Optic Installation Options
Installing approaches for scopes can be found in a couple of choices. There are the basic scope rings which are individually mounted to the optic and one-piece scope mounts which cradle the scope. These various kinds of mounts also normally come in quick release variations which use throw levers which enable rifle operators to quickly install and remove the glass.
Hex Key Scope Ring Mounts
Normal, clamp design mounting scope rings use hex head screws to mount to the flattop style Picatinny scope installation 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 created for long distance precision shooting. This type of scope mount is perfect for rifles which require a durable, rock solid mount which will not move no matter how much the scope is moved or abuse the rifle takes.
Quick-Release Cantilever Optic Ring Mounts
These types of quick-release rifle scope mounts can be used to rapidly remove a scope and attach it to a different rifle. Numerous scopes can also be swapped out if they all use a compatible style mount. These types of mounts come in handy for rifles which are transported a lot, to remove the optic from the rifle for protection, or for scopes which are used in between several rifles or are situationally focused.
Glass Tube Sealing and Gas Purging
Wetness inside your rifle scope can destroy a day of shooting and your pricey optic by triggering fogging and creating residue inside of the scope tube. A lot of scopes prevent wetness from getting in the scope tube with a system of sealing O-rings which are water resistant.
Rifle Glass Gas Purging
Another component of avoiding the accumulation of moisture inside of the rifle optic tube is filling the tube with a gas like nitrogen. Considering that this area is already occupied by the gas, the optic is less affected by temperature changes and pressure distinctions from the external environment which could potentially enable water vapor to leak in around the seals to fill the void which would otherwise be there. These are good qualities of a decent rifle scope to look for.