Rifle Scope Product Details
Clone Skull ACOG 4X32 Fiber Lit Red Illuminated Chevron Scope Tactical
Up for sale is a replica Acog 4×32 fiber optic chevron with a built in bullet drop compensator. These are not made by Trijicon but are similiar to them. These scopes do not have the tritium in them and can only be illuminated by light. Overall the quality of these scopes is phenomenal for the price and will not disappoint. Weight – 14 oz Scope length – 5.9 Inches Eye Relief – 1.5 inch Field of View @ 100 – Yards 33 Feet Windage & Elevation Adjusters (1 Click @ 100 Yards) – 1/2 Inch Objective lens diameter – 1.26 Inches Magnification – 4X Focus type – Fixed Installs on any 20mm weaver rail.
Rifle Scope Product Features
About the Spina Brand
Spina is a premium manufacturer for rifle scopes, optics, mounts, and other components used for guns like rifles and long guns. They create and manufacture their products choosing materials which are long lasting and resilient. This includes the Clone Skull ACOG 4X32 Fiber Lit Red Illuminated Chevron Scope Tactical by Spina. For more shooting goods, visit their site.
Rifle scopes allow you to precisely align a rifle at different targets by lining up your eye with the target over a distance. They accomplish this through magnification by making use of a series of lenses within the scope. The scope’s alignment can be dialed in for the consideration of varied environmental things like wind and elevation decreases to make up for bullet drop.
The scope’s purpose is to understand precisely where the bullet will land based upon the sight picture you are viewing through the optic as you align the scope’s crosshair or reticle with the target. The majority of modern-day rifle scopes have around 11 parts which are located within and externally on the optic. These parts include the rifle scope’s body, lenses, adjustment turrets, objective focus rings, and other elements. Learn about the eleven parts of glass.
The Styles of Rifle Scopes
Rifle scopes can be either “first focal plane” or “second focal plane” type of optics. Going for the perfect type of rifle glass is based on what type of shooting you plan on doing.
About First Focal Plane Scopes
First focal plane glass (FFP) include the reticle in front of the zoom lens. This induces the reticle to increase in size based on the amount of magnification being used. The benefit is that the reticle measurements are the same at the enhanced range as they are at the non magnified distance. One tick on a mil-dot reticle at one hundred yards without “zoom” is still the very same tick at one hundred yards by using 5x “zoom”. These kinds of scopes work for:
- Quick acquisition, long distance kinds of shooting
- Shooting situations where estimations are small
- Experienced shooters who recognize their aim point “hold over” and “lead” relationships for their rifles
- Shooters who don’t mind the reticle is enlarged and occupies more visual sight area than a SFP reticle
Info on Second Focal Plane Scopes
Second focal plane glass (SFP) feature the reticle to the rear of the zoom lens. This induces the reticle to stay at the very same size in relation to the volume of magnification being used. The final result is that the reticle measurements alter based upon the zoom applied to shoot over lengthier ranges because the reticle measurements represent distinct increments which differ with the magnification level. In the FFP example with the SFP glass, the 5x “zoom” 100 yard tick measurement would be 1/5th of the non “zoom” tick reticle measurement. These varieties of glass work for:
- Long distance forms of shooting where shooters have more time to make ballistic estimations
- Shooting where most shots happen within shorter proximities and ranges
- Shooters who would like a clearer optic picture without space used up by the enlarged FFP reticle
Zoom for Rifle Optics
The amount of magnification a scope supplies is determined 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.
Info About Fixed Single Power Lens Glass
A single power rifle optic or scope will have a zoom number designator like 4×32. This means the zoom power of the scope is 4x power and the objective lens is 32mm. The magnification of this type of optic can not fluctuate since it is a fixed power scope.
Adjustable Power Lens Scopes
Variable power rifle scopes can be tweaked between magnified levels. The power change is achieved by making use of the power ring part of the scope near the rear of the scope by the eye bell.
Glass Power and Range Correlation
Here are some suggested scope powers and the distances where they can be successfully used. Highly magnified glass will not be as beneficial as lower powered rifle scope glass considering too much magnification can be a negative aspect depending on your shooting distance. The same relates to longer ranges where the shooter needs enough power to see precisely where to best aim the rifle.
Details on Rifle Scope Lens Finishes
All contemporary rifle optic lenses are coated. Lens covering can be a significant aspect of a rifle’s setup when purchasing high end rifle optics and scope equipment.
Info on Rifle Glass Lens Coatings – HD Versus ED
Some scope companies additionally use “HD” or high-def lens coverings which use various processes, rare earth compounds, polarizations, and elements to enhance different colors and viewable target definition through lenses. This high-definition finish is often used with increased density glass which drops light’s capability to refract by means of the lens glass. Some scope makers use “HD” to refer to “ED” indicating extra-low dispersion glass. ED deals with how colors are represented on the chroma spectrum and the chromatic aberration which is also called color distortion or fringing. Chromatic aberration can be noticeable over things with well defined shapes as light hits the item from various angles.
Single Finishing Versus Multi-Coating
Various scope lenses can even have various finishings applied to them. All lenses typically have at least some kind of treatment or covering applied to them before being used in a rifle scope or optic assembly. This is since the lens isn’t simply a raw piece of glass. It becomes part of the carefully tuned optic. It needs to have a finishing applied to it so that it will be efficiently functional in many kinds of environments, degrees of sunlight (full VS shade), and other shooting conditions.
Single coated lenses have a treatment applied to them which is generally a protective and boosting multi-purpose treatment. This lens treatment can preserve 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 layered lens depends upon the scope maker and how much money you spent paying for it. Both the make and cost are signs of the lens quality.
Some scope makers similarly 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 innovation and the quality of products used in developing the rifle scope.
Hydrophobic Finish for Rifle Optics
Water on a lens does not help with preserving a clear sight picture through a scope at all. Many top of the line and military grade scope companies will coat their lenses with a hydrophilic or hydrophobic coating.
Alternatives for Mounting Scopes on Long Guns
Mounting solutions 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 different types of mounts also normally come in quick release variations which use manual levers which allow rifle operators to quickly mount and remove the scope.
Optic Mounting Solutions with Hex Key Rings
Basic, clamp design mounting scope rings use hex head screws to mount to the flattop style Picatinny scope mount rails on rifles. These forms of scope mounts use double detached rings to support the optic, and are made from 7075 T6 billet aluminum which are created for far away precision shooting. This kind of scope mount is great for rifles which need to have a long lasting, rock solid mount which will not move despite how much the scope is moved about or abuse the rifle takes. These are the design of mounts you want for a specialized optics system on a long distance scouting or tournament firearm that will pretty much never need to be altered or adjusted. Blue 242 Loctite threadlocker can also be used to keep the hex screw threads from wiggling out after they are mounted securely in position. An example of these mounting rings are the 30mm type from Vortex Optics. The set generally costs around $200 USD
Quick-Release Cantilever Rifle Glass Ring Mounts
These types of quick-release rifle scope mounts can be used to quickly remove a scope and attach it to a different rifle. Numerous scopes can also 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 remove the optic from the rifle for protecting the scope, 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 glass can ruin a day of shooting and your pricey optic by resulting in fogging and producing residue within the scope’s tube. The majority of optics protect against wetness from going into the optical tube with a system of sealing O-rings which are waterproof. Typically, these optics can be immersed beneath 20 or 30 feet of water before the water pressure can force moisture past the O-rings. This should be plenty of wetness avoidance for basic use rifles for hunting and sporting purposes, unless you intend on taking your rifle on a boat and are concerned about the scope still working if it falls overboard and you can still recover the gun.
What to Know About Glass Tube Gas Purging
Another component of preventing the accumulation of wetness inside of the rifle optic’s tube is filling the tube with a gas like nitrogen. Since this area is currently taken up by the gas, the glass is less altered by temperature shifts and pressure distinctions from the outside environment which could potentially enable water vapor to leak in around the seals to fill the vacuum which would otherwise exist. These are good qualities of a decent rifle scope to seek out.