Description
Last update on February 2, 2023 // Source: Amazon API
Rifle Scope Product Details
Trijicon Accupoint Rifle Scope 3-9×40 GRN TRI
Trijicon Matte Accupoint Scope w/Bindon Aiming Concept/Green Triangle Reticle Md: TR20G, Trijicon AccuPoint Advanced Dual Illuminated Riflescope Optimum any light shooting, with high transitional speed and pinpoint accuracy. With advanced fiber optic/tritium aiming point illumination, the Trijicon AccuPoint speeds target acquisition and extends available shooting hours. The dual illumination fiber optic system automatically adjusts aiming point brightness to existing light conditions. This provides hunters optimum aiming point illumination and ideal reticle/target contrast. The result: lightning fast precision aiming in any light without failure prone batteries., Magnification: 3x-9x Objective: 40mm Field of View: 33.8-11.3ft @ 100 yds Eye Relief: 3.6″-3.2″ Tube Diameter: 1″ Length: 12.4″ Weight: 13.4 oz Finish: Matte Black Reticle: Post Green Triangle Adj Size: 1/4 MOA @ 100 yds, Manufacturer: TRIJICON INC, Model: TR20G
Rifle Scope Product Features
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15-Years as premier solution provider
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About the Trijicon Manufacturer
Trijicon is a premium supplier for weapon scopes, optics, mounting solutions, and other accessories used for firearms like rifles and long guns. They design and supply their mounts and related products making the most of building materials which are resilient and long lasting. This includes the Trijicon Accupoint Rifle Scope 3-9×40 GRN TRI by Trijicon. For more shooting items, visit their site.
What You Need to Know About Rifle Scopes
Rifle scopes enable you to specifically aim a rifle at different targets by lining up your eye with the target at range. They do this through zoom by using a set of lenses inside the scope. The scope’s alignment can be dialed in for consideration of different natural considerations like wind speed and elevation decreases to account for bullet drop.
The scope’s function is to help the shooter understand precisely where the bullet will land based upon the sight picture you are seeing using the optic as you align the scope’s crosshair or reticle with the target. A lot of modern-day rifle scopes have around 11 parts which are found inside and on the exterior of the scope body. These scope parts include the rifle scope’s body, lenses, windage turrets, objective focus rings, and other elements. See all eleven parts of a rifle optical system.
The Varieties of Rifle Scopes
Rifle scopes can be either “first focal plane” or “second focal plane” type of optics. Choosing the perfect type of rifle scope is based around what type of shooting you plan to do.
First Focal Plane Glass
Focal plane scopes (FFP) come with the reticle in front of the zoom lens. This causes the reticle to increase in size based upon the level of magnification being used. The result is that the reticle measurements are the same at the magnified distance as they are at the non amplified distance. As an example, one tick on a mil-dot reticle at 100 yards with no “zoom” is still the very same tick at 100 yards using 5x “zoom”. These kinds of scopes work for:
- Quick acquisition, long distance kinds of shooting
- Shooting scenarios where computations are very little
- Experienced shooters who know their aim point “hold over” plus “lead” relationships for their long guns
- Shooters who do not mind the reticle is bigger and takes up more visual eyesight space than a SFP reticle
About Second Focal Plane Scopes
Second focal plane glass (SFP) include the reticle to the rear of the zoom lens. This induces the reticle to stay at the exact same dimensions in relation to the amount of magnification being used. The end result is that the reticle dimensions shift based upon the zoom chosen to shoot over longer distances considering the reticle markings represent distinct increments which can vary with the zoom. In the FFP example with the SFP optic, the 5x “zoom” 100 yard tick measurement would be 1/5th of the non “zoom” tick. These types of optics work for:
- Far away forms of shooting where shooters have more time to make ballistic estimations
- Shooting where most shots occur within much shorter ranges and spaces
- Shooters who would like a clearer optic sight picture without space used up by the enlarged FFP reticle
Zoom for Glass
The extent of scope zoom you need on your scope is based on the form of shooting you wish to do. Almost every type of rifle glass offers some level of magnification. The volume of zoom a scope offers is identified by the dimension, density, and curves of the lens glass inside of the rifle scope. The magnification level of the scope is the “power” of the scope. This signifies what the shooter is aiming at through the scope is amplified times the power element of what can generally be seen by human eyes.
Fixed Single Power Lens Scopes
A single power rifle optic uses a zoom number designator like 4×32. This indicates the magnification power of the scope is 4x power and the objective lens is 32mm. The magnification of this kind of optic can not change given that it is a set power scope.
Variable Power Lens Rifle Glass
Variable power rifle scopes use enhanced power. The power change is handled by making use of the power ring part of the scope near the back of the scope by the eye bell.
The Power Level and Range of Scopes
Here are some recommended scope powers and the distances where they could be successfully used. Remember that higher power scopes will not be as practical as lower powered glass since increased zoom can be a bad thing. The same idea applies to longer distances where the shooter needs sufficient power to see where to best aim the rifle.
Details on Lens Coatings
All cutting-edge rifle optic lenses are coated. Lens finish can be a crucial aspect of a rifle system when buying high end rifle optics and scope equipment.
HD Versus ED Optic Lens Coatings
Some glass suppliers also use “HD” or high-definition glass finishings that apply various procedures, elements, chemical substances, and polarizations to extract different colors and viewable target visibility through the lens. This high-definition finish is normally used with greater density glass which reduces light’s potential to refract by means of the lens glass. Some scope vendors use “HD” to describe “ED” suggesting extra-low dispersion glass. ED handles how certain colors are presented on the chroma spectrum and the chromatic deviance or aberration which is similarly called color distortion or fringing. Chromatic aberration may be noticeable over objects with hard edges and outlines as light hits the item from particular angles.
Single Rifle Scope Lens Covering Versus Multi-Coating
Different optic lenses can likewise have different finishings applied to them. All lenses normally have at least some type of treatment or covering used 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 enhancing multi-purpose treatment. This lens treatment can preserve the lens from scratches while minimizing glare and other less beneficial things experienced in the shooting environment while sighting in with the optic. The quality of a single coated lens depends upon the scope company and how much you spent on it. Both are indicators of the lens quality.
Some scope producers also make it a point to specify if their optic lenses are covered or “multi” covered. Being “much better” depends on the manufacturer’s lens treatment technology and the quality of products used in developing the rifle scope.
About Hydrophobic Covering
Water on an optical lens doesn’t help with preserving a clear sight picture through an optic at all. Many top of the line or high-end scope makers will coat their lenses with a hydrophobic or hydrophilic finishing. The Steiner Optics Nano-Protection is a good example of this type of treatment. It treats the surface of the Steiner optic lens so the water particles can not bind to it or create surface tension. The outcome is that the water beads slide off of the scope to maintain a clear, water free sight picture.
Choices for Mounting Rifle Glass on Long Guns
Installing options for scopes come in a couple of choices. There are the standard scope rings which are separately installed to the scope and one-piece mounts which cradle the scope. These various kinds of mounts also typically can be found in quick release versions which use toss levers which enable rifle shooters to rapidly install and remove the scope.
Rifle Optic Mounting Solutions with Hex Key Rings
Standard, clamp type mounting scope rings use hex head screws to install to the flattop design Picatinny scope mounting rails on rifles. These forms of scope mounts use two independent rings to support the scope, and are normally constructed from 7075 T6 billet aluminum or similar materials which are developed for long distance precision shooting. This type of scope mount is good for rifle systems which need to have a durable, rock solid mount which will not shift despite how much the scope is moved about or abuse the rifle takes. These are the design of mounts you really want to have for a specialized scope system on a reach out and touch someone hunting or competition rifle which will seldom need to be altered or recalibrated. Blue 242 Loctite threadlocker can also be used on the mount’s screws to stop the hex screw threads from wiggling out after they are installed safely in place. An example of these mounting rings are the 30mm style made by Vortex Optics. The set typically costs around $200 USD
Quick-Release Cantilever Optic Rings
These types of quick-release rifle scope mounts can be used to rapidly attach and detach a scope from a rifle before reattaching it to a different rifle. Multiple scopes can even be swapped out if they all use a compatible style mount. These types of mounts come in handy for long guns which are carried a lot, to swap out the optic from the rifle for protection, or for optics which are used in between multiple rifles.
Sealing and Gas Purging for Scope Tubes
Moisture inside your rifle optic can mess up a day of shooting and your expensive optic by bringing about fogging and producing residue inside of the scope tube. The majority of scopes avoid wetness from going into the scope tube with a system of sealing O-rings which are water resistant.
Gas Purged Glass Tubes
Another element of preventing the accumulation of moisture inside of the rifle optic’s tube is filling the tube with a gas like nitrogen. Since this area is currently occupied by the gas, the glass is less altered by temperature level shifts and pressure differences from the external environment which may 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 look for.
