Last update on August 18, 2022 // Source: Amazon API
Rifle Scope Product Details
AIM Sports 3-9X40 P4 Sniper Scope with Flip-Up Lens and Rings
JLB3940G Features: -Scope. -Green lens coating. -Reticle: P4. -Magnification: 3X-9X. Magnification: -Medium (approx. 3X – 16X). Usage: -General Target/Plinking/Hunting/Tactical. Objective Lens Diameter: -31-40Mm. Tube Diameter: -1 Inch. Gun Type: -Rimfire Rifle/Air Rifle/Centerfire Rifle. Finish: -Black. Generic Dimensions: -Length: 12.75″. -Net weight: 16.2 oz. Dimensions: Overall Product Weight: -1.01 Pounds.
Rifle Scope Product Features
3-9X40 Full size scope with flip up lens
Magnification is 3X-9X
Tube diameter is 1″
Objective is 40 mm
Length is 12.75″
About the Aim Sports Scope Maker
Aim Sports is a premium company for rifle scopes, optics, mounts, and other add-ons used for guns like rifles and long guns. They design and make their mounts and related products by using building materials which are long lasting and durable. This includes the AIM Sports 3-9X40 P4 Sniper Scope with Flip-Up Lens and Rings by Aim Sports. For more shooting items, visit their site.
What You Need to Know About Rifle Optics
Rifle scopes permit you to exactly align a rifle at various targets by aligning your eye with the target at range. They accomplish this through zoom by making use of a series of lenses inside the scope. The scope’s positioning can be adjusted for the consideration of various ecological aspects like wind speed and elevation increases to account for bullet drop.
The scope’s function is to help shooters understand precisely where the bullet will land based upon the sight picture you are viewing using the optic as you align the scope’s crosshair or reticle with the target. The majority of modern-day rifle scopes have around eleven parts which are located within and externally on the optic. These parts consist of the rifle scope’s body, lenses, windage and elevation dials or turrets, objective focus rings, and other elements. Learn about the eleven parts of glass.
Rifle Optic Types
Rifle scopes can be either “first focal plane” or “second focal plane” type of optics. Picking the optimal type of rifle scope is based around what type of shooting you plan to do.
About First Focal Plane Optics
First focal plane optics (FFP) include the reticle in front of the magnification lens. This causes the reticle to increase in size based on the level of magnification being used. The result is that the reticle measurements are the same at the enhanced range as they are at the non amplified range. For instance, one tick on a mil-dot reticle at 100 yards with no “zoom” is still the corresponding tick at one hundred yards using 5x “zoom”. These kinds of scopes are valuable for:
- Quick acquisition, long distance types of shooting
- Shooting scenarios where computations are very little
- Experienced shooters who have an idea for their target “hold over” and also “lead” ratios for their weapon
- Shooters who do not mind the reticle is bigger and requires more visual sight area than a SFP reticle
Second Focal Plane Glass
Second focal plane scopes (SFP) come with the reticle to the rear of the zoom lens. This triggers the reticle to stay at the same overall size in relation to the quantity of zoom being used. The effect is that the reticle dimensions evolve based on the magnification employed to shoot over lengthier ranges because the markings represent distinct increments which differ with the zoom. In the FFP illustration with the SFP optic, the 5x “zoom” 100 yard tick reticle measurement would be 1/5th of the non “zoom” tick. These particular styles of scopes are handy for:
- Far away forms of shooting where shooters have extra time to make ballistic computations
- Shooting where most of the shots happen within shorter ranges and proximities
- Shooters who would like a clearer optic picture without room used up by the bigger FFP reticle
Magnification for Rifle Glass
The quantity of scope magnification you require depends on the form of shooting you desire to do. Practically every style of rifle scope offers some degree of magnification. The volume of zoom a scope gives is identified by the size, density, and curves of the lenses inside of the rifle optic. The zoom of the scope is the “power” of the glass. This means what the shooter is aiming at through the scope is amplified times the power aspect of what can typically be seen by human eyes.
Info on Single Power Lens Rifle Optics
A single power rifle optic or scope will have a zoom number designator like 4×32. This suggests the magnification power of the scope is 4x power while the objective lens is 32mm. The magnification of this kind of scope can not fluctuate given that it is a set power scope.
Adjustable Power Lens Rifle Scopes
Variable power rifle scopes have adjustable power. These types of scopes will note the zoom amount in a configuration like 2-10×32. These numbers mean the magnification of the scope can be adjusted between 2x and 10x power. This always incorporates the power levels in-between 2 and 10. The power shift is achieved by working with the power ring part of the scope near the rear of the scope by the eye bell piece.
Power and Range Correlations
Here are some recommended scope power levels and the distances where they can be effectively used. Remember that higher power scopes will not be as efficient as lower powered scope and optics due to the fact that excessive zoom can be a bad thing. The same relates to extended distances where the shooter needs to have increased power to see precisely where to best aim the rifle at the target.
About Optic Lens Covering
All modern rifle optic and scope lenses are coated. There are various types and qualities of lens finishes. When shopping for luxury rifle optical units, Lens covering can be an essential element of defining the capability of the rifle. The glass lenses are one of the most critical parts of the optic since they are what your eye looks through while sighting a rifle in on the target. The finish on the lenses offers protection to the lens surface as well as helps with anti glare capabilities from excess daylight and color recognition.
Info on Lens Coatings – HD Versus ED
Some scope brands also use “HD” or high-definition lens finishings which use various methods, components, polarizations, and chemicals to draw out a wide range of colors and viewable definition through the lens. Some scope makers use “HD” to refer to “ED” meaning extra-low dispersion glass.
Single Coating Versus Multi-Coating
Various optic lenses can even have various finishes applied to them. All lenses normally have at least some type of treatment or finishing applied to them before being used in a rifle scope or optic. This is since the lens isn’t just a raw piece of glass. It is part of the finely tuned optic. It requires a coating to be applied to it so that it will be optimally functional in lots of kinds of environments, degrees of sunshine (full light VS shaded), and other shooting conditions.
This lens treatment can safeguard the lens from scratches while decreasing glare and other less useful things experienced in the shooting environment while sighting in with the scope. The quality of a single covered lens depends on the scope manufacturer and how much you paid for it.
Some scope producers also make it a point to define if their optic lenses are covered or “multi” covered. This suggests the lens has several treatments applied to them. If a lens receives numerous treatments, it can establish that a producer is taking multiple steps to combat different natural elements like an anti-glare coating, a scratch resistant anti-abrasion finish, followed by a hydrophilic finish. This also does not necessarily imply the multi-coated lens will perform better than a single covered lens. Being “better” depends upon the maker’s lens treatment technology and the quality of materials used in constructing the rifle glass.
Anti-water Rifle Optic Lens Covering
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 makers will coat their lenses with a hydrophobic or hydrophilic anti-water finishing.
Options for Mounting Rifle Glass on Long Guns
Installing options for scopes are available in a few options. There are the basic scope rings which are individually installed to the scope and one-piece scope mounts which cradle the scope. These different kinds of mounts also typically are made in quick release variations which use toss levers which enable rifle shooters to rapidly install and remove the scopes.
Scope Mounting Solutions with Hex Key Rings
Basic, clamp-on design mounting scope rings use hex head screws to position to the flattop style Picatinny scope mount rails on rifles. These kinds of scope mounts use two individual rings to support the optic, and are made from 7075 T6 billet aluminum or similar materials which are manufactured for long distance precision shooting. This type of scope mount is ideal for rifles which are in need of a resilient, unfailing mount which will not move despite just how much the scope is moved or jarring the rifle takes. These are the type of mounts you should have for a faithful optics system on a reach out and touch someone hunting or competitors long gun which will rarely need to be modified or recalibrated. Blue 242 Loctite threadlocker can additionally be used on the scope mount screws to prevent the hex screws from wiggling out after they are installed securely in place. An example of these rings are the 30mm type from Vortex Optics. The set usually costs around $200 USD
Quick-Release Cantilever Optic Rings
These kinds of quick-release rifle scope mounts can be used to quickly attach and detach a scope from a rifle. If they all use a comparable design mount, several scopes can also be swapped out in the field. The quick detach design is CNC machined from anodized 6061 T6 aluminum and the mounting levers connect solidly to a flat top design Picatinny rail. This allows the scope to be sighted in while on the rifle, taken off of the rifle, and remounted while maintaining precision. These types of mounts are useful and beneficial for rifles which are transferred a lot, to take off the scope glass from the rifle for protection, or for sight systems which are adopted in between several rifles. An example of this mount type is the 30mm mount designed by the Vortex Optics brand. It normally costs around $250 USD
What to Know About Rifle Scope Tube Sealing and Gas Purging
Moisture inside your rifle optic can mess up a day of shooting and your pricey optic by causing fogging and creating residue inside of the scope tube. Many scopes prevent moisture from getting in the scope tube with a system of sealing O-rings which are waterproof.
What to Know About Glass Tube Gas Purging
Another component of avoiding the buildup of moisture within the rifle optic tube is filling the tube with a gas like nitrogen. Given that this area is already taken up by the gas, the scope is less affected by temp shifts and pressure distinctions from the outside environment which could potentially allow water vapor to leak in around the seals to fill the vacuum which would otherwise exist. These are good qualities of a good rifle scope to look for.