Description
Rifle Scope Product Details
Trijicon TA91: Tenebraex killFlash Anti-Reflection Device with LFU for 4×32 RCO ACOG Scope
Manufactured by Tenebraex for US Army
Rifle Scope Product Features
About this item
Package length: 5.1 cm
Package width: 7.5 cm
Package height: 20.8 cm
Product Type: SPORTING GOODS
About the Trijicon Scope Maker
Trijicon is a premium maker for long gun scopes, optics, mounting solutions, and other add-ons used for firearms like rifles and long guns. They design and supply their products by making the most of materials which are long lasting and durable. This includes the Trijicon TA91: Tenebraex killFlash Anti-Reflection Device with LFU for 4×32 RCO ACOG Scope by Trijicon. For additional shooting items, visit their website.
Info About Rifle Glass
Rifle scopes allow you to specifically aim a rifle at different targets by aligning your eye with the target over a range. They accomplish this through magnifying the target by utilizing a series of lenses within the scope. The scope’s positioning can be adapted to take into account varied ecological things like wind and elevation to account 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 seeing with the scope as you align the scope’s crosshair or reticle with the intended point of impact. Many modern rifle optics have around 11 parts which are found internally and outside of the scope. These parts include the rifle scope’s body, lenses, elevation turrets or dials, objective focus rings, and other elements. See all eleven parts of scopes.
The Types of Rifle Scopes
Rifle scopes can be either “first focal plane” or “second focal plane” type of scopes. The type of focal plane a scope has establishes where the reticle or crosshair is located in regard to the optic’s zoom. It literally implies the reticle is behind or in front of the magnifying lens of the optic. Deciding on the most desired kind of rifle scope depends on what kind of shooting you anticipate undertaking.
About First Focal Plane Glass
Focal plane scopes (FFP) include the reticle in front of the magnification lens. These kinds of scopes are helpful for:
- Quick acquisition, far away types of shooting
- Shooting situations where computations are very little
- Experienced shooters who understand their aim point “hold over” and also “lead” equations for their firearm
- Shooters who do not mind the reticle is bigger and takes up more visual sight room than a SFP reticle
Info on Second Focal Plane Scopes
Second focal plane scopes (SFP) come with the reticle behind the magnification 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 reticle measurement.
- Long distance kinds of shooting where shooters have extra time to make ballistic calculations
- Shooting where most of the shots happen within much shorter ranges and distances
- Shooters who choose a clearer optic sight picture with less room taken up by the enlarged FFP reticle
Scope Zoom
The amount of scope zoom you need on your scope depends upon the kind of shooting you want to do. Practically every style of rifle glass offers some level of zoom. The quantity of zoom a scope gives is identified by the size, density, and curves of the lenses within the rifle optic. The zoom of the scope is the “power” of the opic. This implies what the shooter is looking at through the scope is amplified times the power factor of what can generally be seen by human eyes.
Info About Single Power Lens Rifle Optics
A single power rifle optic and scope uses a magnification number designator like 4×32. This indicates the zoom power of the scope is 4x power and the objective lens is 32mm. The magnification of this kind of scope can not change given that it is a set power scope.
Variable Power Lens Rifle Glass Info
Variable power rifle scopes have adjustable power. It will note the zoom degree in a configuration such as 2-10×32. These numbers suggest the zoom of the scope could be set between 2x and 10x power. This always incorporates the powers in-between 2 and 10. The power adjustment is accomplished by applying the power ring part of the scope near the back of the scope by the eye bell.
The Power and Range Correlation of Rifle Optics
Here are some suggested scope power levels and the distances where they can be efficiently used. Keep in mind that higher power optics will not be as efficient as lower powered scopes due to the fact that excessive magnification can be a negative thing in certain situations. The exact same idea goes for extended ranges where the shooter needs adequate power to see precisely where to best aim the rifle at the target.
Rifle Glass Lens Covering
All modern-day rifle optic lenses are layered. Lens finish is a vital aspect of a shooting system when thinking about high end rifle optics and scope setups.
ED Versus HD Rifle Glass
Some scope makers also use “HD” or high-definition lens coatings which use various techniques, aspects, polarizations, and chemicals to draw out separate colors and viewable definition through the lens. Some scope makers use “HD” to refer to “ED” implying extra-low dispersion glass.
Details on Single Finishing Versus Multi-Coating
Various optic lenses can also have different finishes used to them. All lenses usually have at least some type of treatment or coating used to them before being used in a rifle scope or optic.
Single coated lenses have a treatment applied to them which is usually a protective and enhancing multi-purpose treatment. This lens treatment can preserve the lens from scratches while decreasing glare and other less useful things experienced in the shooting environment while sighting in with the optic. The quality of a single covered lens depends upon the scope maker and just how much you paid for it. Both are indications of the lens quality.
Some scope manufacturers also make it a point to define if their optic lenses are coated or “multi” covered. Being “much better” depends on the maker’s lens treatment innovation and the quality of materials used in constructing the rifle scope.
Anti-water Finishing for Scopes
Water on an optical lens does not help with preserving a clear sight picture through a scope whatsoever. Numerous top of the line and premium optic producers will coat their lenses with a hydrophilic or hydrophobic covering. The Steiner Optics Nano-Protection is a fine example of this sort of treatment. It deals with the exterior surfaces of the Steiner scope lens so the H2O molecules can not bind to it or create surface tension. The result is that the water beads roll off of the scope to keep a clear, water free sight picture.
Rifle Optic Installing Options
Installing solutions for scopes can be found in a couple of choices. There are the basic scope rings which are separately installed to the scope and one-piece scope mounts which cradle the scope. These various types of mounts also generally can be found in quick release variations which use manual levers which permit rifle operators to quickly mount and dismount the optics.
Hex Key Optic Rings
Basic, clamp-on style mounting optic rings use hex head screws to install to the flattop style Picatinny scope mount rails on the tops of rifles. These kinds of scope mounts use two individual rings to support the scope, and are made from 7075 T6 billet aluminum which are created for far away precision shooting. This kind of scope mount is ideal for rifles which are in need of a resilient, rock solid mount which will not shift no matter how much the scope is moved or jarring the rifle takes. These are the design of mounts you really want to have for a devoted scope setup on a long distance scouting or competition firearm that will pretty much never need to be modified or adjusted. Blue 242 Loctite threadlocker can also be used on screws to keep the hex screws from wiggling out after they are mounted firmly in place. An example of these rings are the 30mm style from Vortex Optics. The set usually costs around $200 USD
Quick-Release Cantilever Glass Ring Mounting Solutions
These types of quick-release rifle scope mounts can be used to rapidly attach and remove a scope from a rifle before reattaching it to a different rifle. Multiple scopes can even be swapped out if they all use a similar design mount. These types of mounts are handy for long guns which are transported a lot, to remove the optic from the rifle for protection, or for optics which are used in between multiple rifles or are situationally focused.
Rifle Optic Tube Sealing and Gas Purging
Wetness inside your rifle optic can destroy a day of shooting and your pricey optic by bringing about fogging and creating residue inside of the scope tube. Most scopes avoid wetness from entering the scope tube with a system of sealing O-rings which are water resistant.
Rifle Optic Gas Purging
Another element of avoiding the accumulation of moisture inside of the rifle scope tube is filling the tube with a gas like nitrogen. Given that this area is currently taken up by the gas, the optic is less altered by climate alterations and pressure variations from the external environment which may possibly allow water vapor to leak in around the seals to fill the void which would otherwise exist. These are good qualities of a good rifle scope to look for.
