Description
Rifle Scope Product Details
TTHU Rifle Scopes Red Dot Sight 1X25 Sights Reflex with 20Mm Rail Mount & Increase Riser Rail for Hunting Scopes
Magnification: 1x
Objective Lens Dia: 20mm
Length: 2.7in
Reticle: 3-4 MOA
Field of View @ 100 yards: 10.7
Parallax Free@20 yards:20
Eye Relief: Unlimited
Exit Pupil: 22mm
Windage/Elevation Click Value: 1 MOA per click
Adj. Range: +/- 35 MOA
Rifle Scope Product Features
4 MOA red dot sight allows for accurate, both-eyes-open shooting. Unlimited eye relief makes for quick target acquisition. Multi-coated scratch resistant lens provides enhanced image clarity and increases light transmission during low light situations.
The small but adaptable optics are perfect for a wide range of daytime applications including hunting, tactical scenarios and precision shooting. Ideal for close-range and general shooting.
11 red dot brightness settings provide optimal visibility in any light conditions, let shooters cater the dot intensity to the situation at hand.
A shockproof aluminum body displays extreme durability. Nitrogen purged and O-rong sealed. Fully waterproof with sealed housing.Matte black anodized finish resists scratches while keeping a stealthy profile.
Offers two height options (Low and Lower 1/3 Co-Witness), lending its functionality on any platform.
About the TTHU Brand
TTHU is a premium manufacturer for rifle scopes, optics, mounting solutions, and other accessories used for firearms like rifles and long guns. They design and manufacture their scopes and related products choosing materials which are resilient and long lasting. This includes the TTHU Rifle Scopes Red Dot Sight 1X25 Sights Reflex with 20Mm Rail Mount & Increase Riser Rail for Hunting Scopes by TTHU. For more shooting items, visit their site.
Rifle Glass Info
Rifle scopes allow you to precisely aim a rifle at different targets by aligning your eye with the target over a range. They accomplish this through zoom by employing a set of lenses inside the scope. The scope’s positioning can be adapted to take into account many ecological things like wind and elevation to account for bullet drop.
The scope’s function is to understand exactly where the bullet will land based upon the sight picture you are seeing using the optic as you line up the scope’s crosshair or reticle with the intended target. Most contemporary rifle scopes and optics have around eleven parts which are arranged internally and outside of the scope body. These optic pieces consist of the rifle scope’s body, lenses, modification turrets, objective focus rings, and other elements. Learn about the eleven parts of glass.
About Rifle Optic Varieties
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 scopes zoom. It simply implies the reticle is behind or ahead of the magnifying lens of the optic. Picking the most beneficial form of rifle glass is based upon what style of shooting or hunting you intend on undertaking.
About First Focal Plane Optics
Focal plane scopes (FFP) include the reticle in front of the zoom lens. These types of scopes are beneficial for:
- Quick acquisition, far away types of shooting
- Shooting scenarios where estimations are very little
- Experienced shooters who understand their aim point “hold over” and “lead” correlations for their weapon
- Shooters who don’t mind the reticle is enlarged and uses up more visual sight area than a SFP reticle
Second Focal Plane Optic Facts
Second focal plane scopes (SFP) come with the reticle behind the magnifying lens. This induces the reticle to remain at the same size in connection with the volume of zoom being used. The outcome is that the reticle measurements change based on the zoom employed to shoot over lengthier distances given that the markings present various increments which fluctuate with the zoom. In the FFP example with the SFP scope, the 5x “zoom” 100 yard tick would be 1/5th of the non “zoom” tick measurement. These varieties of glass work for:
- Long distance styles of shooting where shooters have additional time to make ballistic estimations
- Shooting where most shots take place within shorter proximities and ranges
- Shooters who like a clearer optic picture with less room used up by the larger size FFP reticle
Magnification for Optics
The quantity of zoom a scope supplies is figured out by the diameter, thickness, and curvatures of the lenses inside of the rifle scope. The magnification of the scope is the “power” of the scope.
Single Power Lens Scope Info
A single power rifle scope or optic comes with 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 type of optic can not adjust because it is a fixed power optic.
About Adjustable Power Lens Glass
Variable power rifle scopes can be tweaked between magnified settings. The power change is performed by using the power ring part of the scope near the rear of the scope by the eye bell.
Rifle Glass Power and Ranges
Here are some recommended scope power levels and the ranges where they may be effectively used. Highly magnified glass will not be as beneficial as lower magnification scopes since too much magnification can be a bad thing. The same concept goes for extended ranges where the shooter needs sufficient power to see precisely where to properly aim the rifle.
Lens Finishing for Glass
All top teir rifle glass lenses are coated. Lens finishing is a vital aspect of a rifle’s setup when thinking about high end rifle optics and scope equipment.
HD Versus ED Lens Coatings
Some rifle scope producers even use “HD” or high-def lens coatings which make the most of various processes, chemicals, components, and polarizations to draw out a wide range of color ranges and viewable definition through the lens. This high-def covering is typically used with increased density lens glass which drops light’s ability to refract by means of the lens glass. Some scope suppliers use “HD” to refer to “ED” meaning extra-low dispersion glass. ED handles how colors are represented on the chromatic spectrum and the chromatic deviance or aberration which is also called color distortion or fringing. Chromatic aberration can be obvious over things with defined outlines as light hits the item from certain angles.
Info on Single Coating Versus Multi-Coating
Various optic lenses can also have various finishings used to them. All lenses typically have at least some type of treatment or coating 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 shield the lens from scratches while lowering glare and other less helpful things experienced in the shooting environment while sighting in with the optic. The quality of a single coated lens depends upon the scope developer and how much you spent on it. Both the make and cost are indications of the lens quality.
Some scope manufacturers likewise make it a point to define if their optic lenses are covered or “multi” coated. This implies the lens has had multiple treatments applied to the surfaces. If a lens gets several treatments, it can indicate that a manufacturer is taking multiple actions to fight various natural aspects like an anti-glare coating, a scratch resistant anti-abrasion covering, followed by a hydrophilic finishing. This also does not always imply the multi-coated lens is better than a single covered lens. Being “much better” depends upon the maker’s lens treatment innovation and the quality of glass used in constructing the rifle glass.
Hydrophobic Coating for Optics
Water on a lens does not help with keeping a clear sight picture through a scope at all. Lots of top of the line and military grade scope companies will coat their lenses with a hydrophilic or hydrophobic covering.
Scope Installation Alternatives
Installing approaches for scopes come in a couple of choices. There are the basic scope rings which are individually installed to the scope and one-piece mounts which cradle the scope. These various kinds of mounts also generally can be found in quick release versions which use throw levers which permit rifle operators to rapidly mount and dismount the optics.
Hex Key Scope Ring Mounting Solutions
Standard, clamp style mounting scope rings use hex head screws to mount to the flattop design Picatinny scope mount rails on rifles. These types of scope mounts use two separate rings to support the optic, and are often made from 7075 T6 billet aluminum which is designed for long range precision shooting. This type of scope install is perfect for rifles which require a long lasting, sound mount which will not move no matter how much the scope is moved or abuse the rifle takes.
Scope Mounts with Quick-Release Cantilever Rings
These types of quick-release rifle scope mounts can be used to quickly connect and take off a scope from a rifle before reattaching 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 rifles which are carried a lot, to swap out the optic from the rifle for protection, or for optics which are used between multiple rifles.
Sealing and Gas Purging for Scope Tubes
Moisture inside your rifle scope can ruin a day of shooting and your costly optic by triggering fogging and creating residue inside of the scope tube. Many scopes prevent wetness from getting in the scope tube with a system of sealing O-rings which are waterproof.
Gas Purged Scope Tubes
Another part of preventing the accumulation of wetness inside of the rifle optic tube is filling the tube with a gas like nitrogen. Because this space is already taken up by the gas, the scope is less influenced by temperature level shifts and pressure variations from the external environment which may possibly allow water vapor to permeate in around the seals to fill the vacuum which would otherwise be there. These are good qualities of a good rifle scope to seek out.
