Description
Rifle Scope Product Details
NcStar 3-9×40 Black Scope / Red & Green ILL. / Green Lens / Weaver Rings
Product Specifications: * MAGNIFICATION: 3X-9X * TUBE DIA. 1 * OBJECTIVE DIA. (MM) 40.00 * FOV (FEET AT 100 YARDS) 36.6-13.6 * EYE RELIEF (in) 2.80-3.20 * EXIT PUPIL(MM) 13.3-4.4 * RETICLE: P4 SNIPER * N.W(OZ.) 12.3 * LENGTH (in) 14.8 * CLICK VALUE : 1/4 M.O.A * EXTERIOR FINISH: MATTE BLACK * LENS COATING: GREEN * MOUNT INCLUDED: WEAVER STYLE RINGS
Rifle Scope Product Features
Multi Coated Lenses
Variable Power Magnification
Quick Focus Eyepiece
Reticles illuminate in Red & Green with multiple brightness settings
Includes lens covers and aluminum weaver style rings
About the M1Surplus Company
M1Surplus is a premium supplier for rifle scopes, optics, mounting solutions, and other add-ons used for guns like rifles and long guns. They create and make their scopes, mounts, and related products making the most of elements which are durable and long lasting. This includes the NcStar 3-9×40 Black Scope / Red & Green ILL. / Green Lens / Weaver Rings by M1Surplus. For additional shooting items, visit their website.
What You Need to Know About Rifle Scopes
Rifle scopes allow you to specifically aim a rifle at various targets by aligning your eye with the target at range. They accomplish this through zoom by using a series of lenses within the scope. The scope’s alignment can be adjusted for the consideration of various environmental elements like wind speed and elevation increases or decreases to account for bullet drop.
The scope’s purpose is to help shooters understand exactly where the bullet will land based on the sight picture you are seeing through the optic as you align the scope’s crosshair or reticle with the intended target. Many modern rifle optics have about eleven parts which are found inside and outside of the scope body. These parts include the rifle scope’s body, lenses, adjustment dials or turrets, focus rings, and other parts. See all eleven parts of an optic.
Rifle Glass Varieties
Rifle scopes can be either “first focal plane” or “second focal plane” type of optics. Going for the optimal type of rifle glass is based around what type of shooting you plan to do.
Info on First Focal Plane Optics
Focal plane scopes (FFP) feature the reticle in front of the magnifying lens. This triggers 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 amplified 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 corresponding tick at 100 yards with 5x “zoom”. These types of scopes work for:
- Quick acquisition, long distance types of shooting
- Shooting situations where estimations are very little
- Experienced shooters who understand their aim point “hold over” and “lead” equations for their firearms
- Shooters who don’t mind the reticle is bigger and takes up more visual sight space than a SFP reticle
Info About Second Focal Plane Scopes
Second focal plane glass (SFP) feature the reticle to the rear of the magnifying lens. This causes the reticle to remain at the very same dimensions relative to the amount of zoom being used. The outcome is that the reticle measurements alter based upon the zoom applied to shoot over longer distances because the reticle measurements present distinct increments which fluctuate with the zoom. In the FFP example with the SFP optic, the 5x “zoom” one hundred yard tick measurement would be 1/5th of the non “zoom” tick. These particular sorts of optics work for:
- Long distance kinds of shooting where shooters have extra time to make ballistic calculations
- Shooting where most shots take place within shorter ranges and proximities
- Shooters who select a clearer optic picture without area used up by the larger sized FFP reticle
Rifle Optic Magnification
The extent of scope zoom you need on your scope is based on the kind of shooting you want to do. Nearly every style of rifle scope supplies some level of magnification. The quantity of magnification a scope gives is determined by the size, thickness, and curvatures of the lenses inside of the rifle optic. The magnifying level of the optic is the “power” of the opic. This signifies what the shooter is aiming at through the scope is amplified times the power factor of what can generally be seen by human eyes.
Single Power Lens Optic Details
A single power rifle optic will have a magnification number designator like 4×32. This implies the magnification power of the scope is 4x power and the objective lens is 32mm. The magnification of this type of optic can not adjust considering that it is fixed.
Adjustable Power Lens Glass Facts
Variable power rifle scopes can be tweaked between magnified levels. The power modification is achieved by using the power ring part of the scope near the back of the scope by the eye bell.
Rifle Optic Power Level and Range Correlation
Here are some suggested scope powers and the ranges where they may be effectively used. Always remember that high power scopes and optics will not be as efficient as lower magnification level optics because too much magnification can be a negative thing in certain situations. The same goes for longer distances where the shooter needs to have increased power to see exactly where to properly aim the rifle.
Glass Lens Covering
All top teir rifle scope and optic lenses are layered. Lens covering can be a significant aspect of a rifle system when thinking about high end rifle optics and scope systems.
HD Versus ED Scope Lens Coatings
Some glass companies will also use “HD” or high-def lens coverings which take advantage of various processes, rare earth compounds, polarizations, and elements to enhance a wide range of colors and viewable definition through lenses. This HD covering is typically used with greater density glass which drops light’s capability to refract through the lens glass. Some scope makers use “HD” to describe “ED” signifying extra-low dispersion glass. ED deals with how colors are represented on the chroma spectrum and the chromatic aberration or difference which is similarly called color distortion or fringing. Chromatic aberration can be visible around objects with hard shapes as light hits the item from particular angles.
Single Rifle Optic Lens Finishing Versus Multi-Coating
Different scope lenses can even have various coverings applied to them. All lenses typically have at least some type of treatment or coating applied to them prior to being used in a rifle scope or optic assembly. This is due to the fact that the lens isn’t simply a raw piece of glass. It becomes part of the finely tuned optic. It must have a covering applied to it so that the lens will be efficiently functional in numerous kinds of environments, degrees of sunlight (full VS shade), and other shooting conditions.
Single layered lenses have a treatment applied to them which is typically a protective and enhancing multi-purpose treatment. This lens treatment can shield the lens from scratches while decreasing glare and other less advantageous things experienced in the shooting environment while sighting in with the optic. The quality of a single coated lens depends on the scope manufacturer and how much money you paid for it. The scope’s maker and cost are indications of the lens quality.
Some scope producers also make it a point to specify if their optic lenses are layered or “multi” coated. This indicates the lens has had numerous treatments applied to the surfaces of the glass. If a lens gets numerous treatments, it can indicate that a company is taking numerous steps to combat various natural factors like an anti-glare covering, a scratch resistant anti-abrasion finishing, followed by a hydrophilic finishing. This additionally doesn’t always indicate the multi-coated lens will perform much better than a single layered lens. Being “much better” depends on the producer’s lens treatment technology and the quality of products used in building the rifle scope.
Hydrophobic Covering for Optics
Water on a lens does not assist with preserving a clear sight picture through a scope at all. Lots of top of the line and high-end optic companies will coat their lenses with a hydrophilic or hydrophobic finish.
Scope Installing Alternatives
Installing options for scopes can be found in a few choices. There are the basic scope rings which are individually installed to the scope and one-piece scope mounts which cradle the scope. These various types of mounts also usually come in quick release versions which use throw levers which allow rifle operators to rapidly install and remove the optics.
Rifle Glass Mounts with Hex Key Rings
Standard, clamp design mounting scope rings use hex head screws to position to the flattop style Picatinny scope mount rails on rifles. These styles of scope mounts use a pair of independent rings to support the optic, and are normally constructed from 7075 T6 billet aluminum which are created for far away accuracy shooting. This type of scope mount is ideal for rifle systems which need a resilient, unfailing mount which will not change regardless of 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 optics setup on a far away scouting or sniper competition long gun which will rarely need to be altered or adjusted. Blue 242 Loctite threadlocker can also be used on the screws to keep the hex screws from backing out after they are mounted securely in place. An example of these mounting rings are the 30mm type made by Vortex Optics. The set normally costs around $200 USD
Quick-Release Cantilever Rifle Optic 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. If they all use a similar style mount, a number of scopes can often be swapped out in the field. The quick detach mount style is CNC machined from anodized 6061 T6 aluminum and the mounting levers attach securely to a flat top design Picatinny rail. This permits the scope to be sighted in while on the rifle, taken off of the rifle, and remounted back on the rifle while preserving precision. These types of mounts come in handy for rifles which are transferred between vehicles a lot, to remove the glass from the rifle for protection, or for optics which are chosen for use in between numerous rifles. An example of this mount type is the 30mm mount from Vortex Optics. It generally costs around $250 USD
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 developing residue inside of the scope tube. Many scopes prevent wetness from entering the scope tube with a system of sealing O-rings which are water resistant.
Details on Rifle Optic Tube Gas Purging
Another part of preventing the accumulation of wetness within the rifle scope tube is filling the tube with a gas like nitrogen. Given that this space is currently taken up by the gas, the scope is less affected by condition changes and pressure variations from the outside environment which might potentially allow water vapor to leak in around the seals to fill the void which would otherwise be there. These are good qualities of a good rifle scope to look for.
