Description
Last update on June 30, 2022 // Source: Amazon API
Rifle Scope Product Details
Monstrum 3-9×32 AO Rifle Scope with Illuminated Range Finder Reticle and Parallax Adjustment
Rifle Scope Product Features
About this item
Adjustable 3-9 times magnification, for targeting out to 500 yards and beyond
Adjustable reticle illumination with 5 brightness levels in both red and green, allowing for better reticle visibility at night or in low light environments
An adjustable objective lens or AO – that allows for sharper focus of the target image, elimination of parallax, and range estimation
A range finder reticle with markings that allows you to estimate range or compensate for bullet drop
Aircraft grade 6061 aluminum scope body with a sealed, nitrogen-charged tube for resistance to water and fog
The Monstrum Tactical S3932-R-RGAO is a reliable tactical scope great for close to mid-range shooting. Crystal clear optics with 3-9x magnification. This scope has a functionally designed Rangefinder reticle for faster range estimation and holdover correction.
All Monstrum scopes tubes are nitrogen filled for resistance to water and fog.
This scope has 1/4 MOA/click windage/elevation adjustments with capped turrets.
It comes equipped with an illuminated Rangefinder reticle which can be viewed in red or green illumination and in multiple brightness intensities, or viewed in black without illumination, for a suitable sight picture regardless of lighting or environment.
The adjustable objective (AO) lens can be moved by the parallax dial at the end of the scope. This adjustment allows for a sharper target image, elimination of parallax, and range estimation.
Multi-layer lens coating, protects your scope lens from scratches, and fog, while improving the clarity of your vision.
Includes: 3-9×32 AO Scope, Standard Scope Rings, CR1632A Battery, Lens Cloth, Lens Cover
Reticle: Illuminated Range Finder
Compatibility: Rifles with Picatinny Rails
Scope Range: Close to Mid Range, 300+ Yards
Magnification: 3-9x
Objective Diameter: 32 mm
Tube Size: 1 in
Eye Relief: 3.5-3.8 in
Weight: 14 oz
3-9×32 AO Rifle Scope 2-7×32 AO Rifle Scope 3-12×42 AO Rifle Scope 3-9×40 AO Rifle Scope
Magnification: 3-9x 2-7x 3-12x 3-9x
Reticle: Illuminated Rangefinder Illuminated Rangefinder Illuminated Mil-Dot Crosshair Reticle
Scope Range: Close to Mid Range, 400+ Yards Close to Mid Range, 300+ Yards Close to Mid Range, 500+ Yards Close to Mid Range, 500+ Yards
Eye Relief: 3.5-3.8 in 3.5-3.8 in 3-3.5 in 3.5-3.8 in
Scope Rings Included: Standard Medium Profile Standard Medium Profile Offset High Profile Offset High Profile Single Piece Mount
Tube Diameter: 1 in 1 in 30 mm 1 in
Illuminated Reticle: N/A
Shock, Water, and Fog Proof:
About the Monstrum Brand
Monstrum is a premium producer for firearm scopes, optics, mounting solutions, and other add-ons used for guns like rifles and long guns. They innovate and make their mounts, scopes, and related products working with elements which are long lasting and durable. This includes the Monstrum 3-9×32 AO Rifle Scope with Illuminated Range Finder Reticle and Parallax Adjustment by Monstrum. For additional shooting products, visit their website.
Info About Scopes
Rifle scopes permit you to precisely align a rifle at different targets by aligning your eye with the target at range. They do 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 various natural factors like wind speed and elevation decreases to account for bullet drop.
The scope’s function is to help shooters understand exactly where the bullet will land based on the sight picture you are viewing using the scope as you line up the scope’s crosshair or reticle with the intended point of impact. Many modern-day rifle scopes have around eleven parts which are arranged inside and externally on the optic. These optic pieces include the rifle scope’s body, lenses, elevation turrets, focus rings, and other components. See all eleven parts of a rifle optical system.
About Optic Types
Rifle scopes can be either “first focal plane” or “second focal plane” type of scopes. Picking the optimal type of rifle optic is based around what type of shooting you plan on doing.
First Focal Plane Scopes
First focal plane scopes (FFP) include the reticle before the magnifying lens. This induces 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 enhanced distance as they are at the non amplified distance. One tick on a mil-dot reticle at 100 yards with no “zoom” is still the exact same tick at 100 yards by using 5x “zoom”. These kinds of scopes are useful for:
- Quick acquisition, long distance types of shooting
- Shooting situations where calculations are minor
- Experienced shooters who understand their aim point “hold over” and also “lead” ratios for their long guns
- Shooters who do not mind the reticle is enlarged and requires more visual sight room than a SFP reticle
About Second Focal Plane Optics
Second focal plane optics (SFP) feature the reticle to the rear of the zoom lens. This induces the reticle to remain at the same scale relative to the quantity of magnification being used. The final result is that the reticle dimensions evolve based on the magnification chosen to shoot over greater distances considering that the reticle markings represent various increments which can vary with the zoom. In the FFP illustration with the SFP glass, the 5x “zoom” one hundred yard tick measurement would be 1/5th of the non “zoom” tick measurement. These kinds of glass work for:
- Long distance styles of shooting where shooters have increased time to make ballistic computations
- Shooting where most shots take place within much shorter ranges and distances
- Shooters who select a clearer optic sight picture with less room used up by the larger sized FFP reticle
Optic Magnification
The quantity of magnification a scope offers is figured out by the size, thickness, and curvatures of the lenses inside of the rifle scope. The magnification of the scope is the “power” of the scope.
Fixed Single Power Lens Glass
A single power rifle scope and optic uses a zoom number designator like 4×32. This suggests the zoom power of the scope is 4x power while the objective lens is 32mm. The zoom of this type of scope can not adjust because it is a fixed power optic.
Variable Power Lens Optic Details
Variable power rifle scopes have adjustable power. It will list the zoom degree in a configuration such as 2-10×32. These numbers suggest the magnification of the scope could be adjusted in between 2x and 10x power. This also incorporates the power levels in-between 2 and 10. The power adaptation is accomplished by working with the power ring component of the scope near the back of the scope by the eye bell.
Glass Power Level and Range Correlation
Here are some suggested scope power settings and the distances where they may be successfully used. Always remember that higher power glass will not be as practical as lower powered glass due to the fact that increased zoom can be a detractor. The same concept goes for extended distances where the shooter needs to have sufficient power to see where to properly aim the rifle at the target.
Rifle Scope Lens Finish
All modern-day rifle scope lenses are layered. There are different types and qualities of glass coverings. Lens covering is an important element of a rifle’s setup when thinking about luxury rifle optics and targeting equipment. The glass lenses are among the most vital components of the optic considering they are what your eye sees through while sighting a rifle in on the point of impact. The covering on the lenses shields the lens exterior and even helps with anti glare capabilities from refracted daylight and color exposure.
HD Versus ED Lenses
Some glass makers will also use “HD” or high-definition glass finishings which make the most of different procedures, rare earth compounds, polarizations, and components to draw out a wide range of colors and viewable definition through lenses. This HD coating is typically used with more costly, high density lens glass which lowers light’s opportunity to refract by means of the lens glass. Some scope manufacturers use “HD” to describe “ED” meaning extra-low dispersion glass. ED handles how certain colors are represented on the chroma spectrum and the chromatic aberration or difference which is also called color distortion or fringing. Chromatic aberration is often visible over items with hard outlines as light hits the object from particular angles.
Single Finish Versus Multi-Coating for Scopes
Different optic lenses can also have different finishings applied to them. All lenses typically have at least some type of treatment or coating used to them before being used in a rifle scope or optic.
Single covered lenses have a treatment applied to them which is generally a protective and boosting multi-purpose treatment. This lens treatment can safeguard the lens from scratches while lowering glare and other less beneficial things experienced in the shooting environment while sighting in with the optic. The quality of a single covered lens depends upon the scope company and just how much you spent paying for it. Both the manufacturer and amount are indications of the lens quality.
Some scope makers also make it a point to define if their optic lenses are coated or “multi” covered. Being “better” depends on the producer’s lens treatment technology and the quality of products used in building the rifle scope.
Anti-water Lens Coating
Water on a lens does not support retaining a clear sight picture through an optic whatsoever. Numerous top of the line or premium optic manufacturers will coat their lenses with a hydrophilic or hydrophobic finishing. The Steiner Optics Nano-Protection is a fine example of this kind of treatment. It deals with the surface area of the Steiner glass lens so the H2O molecules can not bind to it or develop surface tension. The result is that the water beads roll off of the scope to maintain a clear, water free sight picture.
Alternatives for Installing Glass on Long Guns
Mounting solutions for scopes can be found in a few choices. There are the basic scope rings which are individually mounted to the optic and one-piece mounts which cradle the scope. These different kinds of mounts also generally can be found in quick release variations which use manual levers which enable rifle shooters to quickly mount and remove the glass.
Hex Key Rifle Scope Ring Mounting Solutions
Normal, clamp style mounting scope rings use hex head screws to mount to the flattop style Picatinny scope installation 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 accuracy shooting. This type of scope install is wonderful for rifles which need a resilient, sound mount which will not move no matter how much the scope is moved or abused.
Quick-Release Cantilever Glass Rings
These kinds of quick-release rifle scope mounts can be used to quickly detach a scope from a rifle and reattach it to a different rifle. If they all use a similar style mount, multiple scopes can also be switched out. The quick detach design is CNC machined from anodized 6061 T6 aluminum and the mounting levers attach nicely to a flat top type Picatinny rail. This enables the scope to be sighted in while on the rifle, taken off of the rifle, and remounted while keeping accuracy. These types of mounts are useful and practical for shooting platforms which are shipped a lot, to take off the scope from the rifle for protection, or for optics which are used in between several rifles. An example of this mount style is the 30mm mount designed by the Vortex Optics brand. It typically costs around $250 USD
Sealing and Gas Purging for Rifle Optic Tubes
Moisture inside your rifle scope can ruin a day of shooting and your expensive optic by causing fogging and producing residue inside of the scope tube. Many scopes avoid wetness from going into the scope tube with a system of sealing O-rings which are waterproof.
About Rifle Scope Tube Gas Purging
Another component of preventing the buildup of wetness within the rifle scope tube is filling the tube with a gas like nitrogen. Since this area is already occupied by the gas, the optic is less impacted by temp shifts and pressure variations from the external environment which could potentially allow water vapor to leak in around the seals to fill the vacuum which would otherwise be there. These are good qualities of a decent rifle scope to look for.
