Description
Rifle Scope Product Details
QILU 2.5-10×40 Rifle Scope – Illuminated Red & Green Mil-dot Reticle, Red Dot Scope Airsoft Scope Reflex Sight Gun Sights with 20mm Mounts
Specification
Magnification: 2.5x-10x
Objective Diameter: 40mm
Lens Type: Multi-coated Green Lens
Eye Relief: 4” @ 2.5x – 3”@ 10x
Exit Pupil: 0.52” @ 2.5x – 0.17” @ 10x
Field Of View: 100 Yards Of 34.86′ @2.5x – 11.53′ @10
Illuminated Level: 5 Intensity (Red) And 5 Intensity (Green)
Reticle Type: Mil-dot
Click Value: 1/4inch@100 Yds
Laser Class: Class IIIA
Laser Power: 2mW
Laser Wavelength:650 Nm
Dimensions: 8.5″ X 3″x 3″
Net Weight: 20.5oz(approx.)
Tube Diameter: 1.57”
Finsh: Black Matte
Special Design
Bullet Drop Compensator: Allows Quick Adjustments Of The Reticle For Shooting Targets At Specific Distances(100-500 Yds).
Multi-coated Green Lens: With Much Higher Light Transimittance Compared With Normal Blue Lens, Allows Clearer Image.
Special 2 In 1 Design: Scope And Gun Sight Laser Built Together To Ensure Precise Shooting.
0.79” (20mm) Mounts Included
Package Include
1 X 2.5-10x40e Rifle Scope
1 X Lens Cover
Battery: CR 2032 X 1(reticle); LR1130 X3(gun Sight Laser)
1 X Scope Mounts For 20mm Picatinny Or Weaver Rail
1 X Allen Key
1 X Cleaning Cloth
Rifle Scope Product Features
Magnification 2.5-10X With 40mm Objective, Field Of View: 100 Yards Of 32.5″ @ 2.5x ” 8.9″ @10x, Laser Range Up To 100 Yards.
Nitrogen Filled And O-ring Sealed For Waterproof, Fog Proof Performance.
The Multi-coated Green Objective Lens Boast Higher Light Transmittance For Better Clarity Performance Compared To Blue Objective Lens.
Red And Green Illuminated Reticle, 5 Brightness Levels For All Environments.
Solid Aluminum Alloy Construction, Quick And Secure Attachment To All Picatinny Or Weaver Rails.
About the QILU Company
QILU is a premium producer for rifle scopes, optics, mounts, and other components used for guns like rifles and long guns. They design and supply their scopes, mounts, and related products choosing building materials which are long lasting and durable. This includes the QILU 2.5-10×40 Rifle Scope – Illuminated Red & Green Mil-dot Reticle, Red Dot Scope Airsoft Scope Reflex Sight Gun Sights with 20mm Mounts by QILU. For additional shooting goods, visit their website.
What You Need to Know About Scopes
Rifle scopes allow you to precisely aim a rifle at various targets by aligning your eye with the target over a range. They accomplish this through magnifying the target by making use of a set of lenses inside the scope. The scope’s positioning can be adapted for the consideration of separate ecological factors like wind speed and elevation decreases to account for bullet drop.
The scope’s function is to understand exactly where the bullet will hit based on the sight picture you are viewing using the optic as you line up the scope’s crosshair or reticle with the intended target. A lot of modern rifle scopes have about eleven parts which are arranged within and externally on the optic. These optic pieces include the rifle scope’s body, lenses, adjustment turrets or dials, objective focus rings, and other parts. Learn about the eleven parts of rifle glass.
The Styles of Rifle Scopes
Rifle scopes can be either “first focal plane” or “second focal plane” type of scopes. Deciding on the finest type of rifle glass is based around what type of shooting you plan to do.
Info on First Focal Plane Scopes
First focal plane scopes (FFP) include the reticle in front of the magnifying lens. This triggers the reticle to increase in size based on the level of zoom being used. The benefit is that the reticle measurements are the same at the amplified range as they are at the non magnified range. One tick on a mil-dot reticle at one hundred yards without “zoom” is still the same tick at 100 yards by using 5x “zoom”. These kinds of scopes work for:
- Quick acquisition, far away types of shooting
- Shooting circumstances where computations are minimal
- Experienced shooters who know their aim point “hold over” and “lead” correlations for their firearm
- Shooters who do not mind the reticle is bigger and occupies more visual sight space than a SFP reticle
Info About Second Focal Plane Scopes
Second focal plane glass (SFP) include the reticle behind the zoom lens. This triggers the reticle to stay at the same scale relative to the level of zoom being used. The outcome is that the reticle dimensions shift based on the zoom employed to shoot over greater ranges considering the reticle measurements present distinct increments which change with the zoom. In the FFP illustration with the SFP glass, the 5x “zoom” 100 yard tick reticle measurement would be 1/5th of the non “zoom” tick. These particular varieties of scopes are useful for:
- Far away kinds of shooting where shooters have additional time to make ballistic computations
- Shooting where most of the shots occur within much shorter proximities and ranges
- Shooters who like a clearer optic picture with less space used up by the enlarged FFP reticle
Zoom for Rifle Optics
The quantity of magnification a scope provides is determined by the size, thickness, and curvatures of the lenses inside of the rifle scope. The zoom of the scope is the “power” of the scope.
Single Power Lens Rifle Scope Facts
A single power rifle scope will have a magnification number designator like 4×32. This indicates the zoom power of the scope is 4x power while the objective lens is 32mm. The zoom of this type of optic can not fluctuate given that it is a fixed power scope.
Info on Adjustable Power Lens Rifle Glass
Variable power rifle scopes can be changed between magnification increments. These types of scopes will note the magnification degree in a configuration like 2-10×32. These numbers mean the magnification of the scope could be set in between 2x and 10x power. This additionally incorporates the powers in-between 2 and 10. The power adjustment is accomplished by making use of the power ring component of the scope near the back of the scope by the eye bell.
The Power Level and Range Correlation of Rifle Glass
Here are some advised scope power settings and the ranges where they could be successfully used. High power glass will not be as useful as lower magnification optics considering that too much zoom can be a bad thing. The same applies to extended distances where the shooter needs to have increased power to see precisely where to best aim the rifle at the target.
Lens Finishing for Rifle Scopes
All contemporary rifle optic and scope lenses are coated. There are various types and qualities of glass lens finishings. Lens covering is an essential element of a rifle when thinking of high end rifle optics and scope systems. The lenses are one of the most key parts of the glass considering they are what your eye looks through while sighting a rifle in on the point of impact. The finish on the lenses offers protection to the lens surface area and improves anti glare from refracted sunlight and color exposure.
ED Versus HD Glass
Some rifle glass producers even use “HD” or high-def lens coatings that take advantage of different processes, polarizations, elements, and chemicals to draw out different colors and viewable target definition through lenses. This high-def finishing is typically used with greater density glass which reduces light’s chance to refract by means of the lens glass. Some scope suppliers use “HD” to describe “ED” implying extra-low dispersion glass. ED handles how certain colors are presented on the chromatic spectrum and the chromatic difference or aberration which is also called color distortion or fringing. Chromatic aberration can be visible around items with defined outlines as light hits the object from particular angles.
Details on Single Finishing Versus Multi-Coating
Various optic lenses can also have different finishes used to them. All lenses normally have at least some type of treatment or coating applied to them before they are used in a rifle scope or optic.
This lens treatment can safeguard the lens from scratches while reducing glare and other less helpful things experienced in the shooting environment while sighting in with the scope. The quality of a single coated lens depends on the scope maker and how much you paid for it.
Some scope producers likewise make it a point to specify if their optic lenses are coated or “multi” covered. This suggests the lens has had multiple treatments applied to the surfaces of the glass. If a lens receives numerous treatments, it can prove that a company is taking numerous steps to combat various environmental elements like an anti-glare coating, a scratch resistant anti-abrasion finishing, followed by a hydrophilic finish. This also doesn’t always mean the multi-coated lens is better than a single coated lens. Being “better” hinges on the producer’s lens treatment technology and the quality of products used in building the rifle optic.
Hydrophobic Coating for Glass
Water on a lens does not improve keeping a clear sight picture through a scope whatsoever. Lots of top of the line and high-end optic producers will coat their lenses with a hydrophobic or hydrophilic finish. The Steiner Optics Nano-Protection is a good example of this type of treatment. It deals with the surface area of the Steiner glass lens so the water particles can not bind to it or produce surface tension. The outcome is that the water beads slide off of the scope to preserve a clear, water free sight picture.
Options for Installing Rifle Optics on Long Guns
Mounting solutions for scopes are available in a couple of options. There are the basic scope rings which are individually mounted to the optic and one-piece scope mounts which cradle the scope. These different kinds of mounts also typically are made in quick release versions which use manual levers which permit rifle shooters to quickly install and remove the scope.
Glass Mounts with Hex Key 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 a pair of individual rings to support the scope, and are made from 7075 T6 billet aluminum or similar materials which are made for far away accuracy shooting. This kind of scope mount is exceptional for rifles which are in need of a resilient, rock solid mount which will not move regardless of how much the scope is moved about or jarring the rifle takes. These are the style of mounts you should get for a specialized optics system on a reach out and touch someone hunting or competition firearm which will seldom need to be altered or adjusted. Blue 242 Loctite threadlocker can also be used to stop the hex screw threads from backing out after they are mounted tightly in position. An example of these mounting rings are the 30mm type from the Vortex Optics company. The set normally costs around $200 USD
Rifle Glass Mounting Solutions with Quick-Release Cantilever Rings
These types of quick-release rifle scope mounts can be used to quickly 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 mount style is CNC crafted from anodized 6061 T6 aluminum and the mounting levers connect tightly to a flat top style Picatinny rail. This lets the scope to be sighted in while on the rifle, removed from the rifle, and remounted while retaining accuracy. These kinds of mounts are useful and handy for shooting platforms which are hauled around a lot, to take off the optic from the rifle for protection, or for optics which are adopted between numerous rifles. An example of this mount style is the 30mm mount from the Vortex Optics brand. It generally costs around $250 USD
Sealing and Gas Purging for Rifle Optic Tubes
Wetness inside your rifle scope can destroy a day on the range and your pricey optic by resulting in fogging and producing residue inside of the scope’s tube. The majority of optics protect against moisture from getting in the optical tube with a series of sealing O-rings which are waterproof. Usually, these water-resistant optics can be immersed under 20 or 30 feet of water before the water pressure can push moisture past the O-rings. This should be plenty of moisture content prevention for standard use rifles, unless you plan on taking your rifle boating and are worried about the optic still functioning if it falls overboard and you can still retrieve the firearm.
Optic Gas Purging
Another component of avoiding the buildup of moisture within the rifle optic’s tube is filling the tube with a gas like nitrogen. Since this area is already taken up by the gas, the glass is less altered by temperature level shifts and pressure variations from the outdoor environment which might potentially allow water vapor to seep 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.
