Description
Last update on April 20, 2026 // Source: Amazon API
Rifle Scope Product Details
Monstrum Stealth Series 3×32 Rifle Scope (Black)
Rifle Scope Product Features
About this item
The new Stealth Series rifle scopes from Monstrum Tactical features a new minimalist design with a rigid one-piece machined aluminum body, for shooters that want a simple no-nonsense optic guaranteed to hold zero
Fixed 3x magnification with a 32 mm objective lens and is suitable for close to mid range shooting out to 300 yards
Features a clean yet functionally designed illuminated glass range finder reticle, allowing for on-the-fly range estimation and long distance targeting
Integrated mount that secures quickly to any Picatinny rail equipped flat top rifle
Machined from single piece lightweight 6061 grade aluminum, only 6 inches in length and 15 ounces in weight
The new Stealth Series rifle scopes from Monstrum Tactical features a new minimalist design with a rigid one-piece machined aluminum body, for shooters that want a simple no-nonsense optic assured to hold zero.
Capped reset turrets are finger adjustable with 1/2 MOA/click windage/elevation adjustments with the ability to lock the turrets and reset the zero.
Fashioned from aircraft grade aluminum, the scope is compact and lightweight, yet with a sturdy, weatherproof design. The scope also has an integrated mount that secures quickly to any Picatinny or Weaver rail equipped flat top rifle.
Dimensions:
Weight: 15 oz
Length: 6.3 in
Width: 2.8 in
Height: 2.6 in
Obj. Diameter: 32 mm
Materials: 6061 Aircraft Grade Aluminum
Illuminated Range Finder Reticle
It features a clean yet functionally designed illuminated glass range finder reticle, allowing for on-the-fly range estimation and long distance targeting. The reticle illuminates in red or green and in multiple brightness intensities, for a suitable sight picture regardless of lighting or environment.
Scope Details:
Includes: 3×32 Scope, CR2032A Battery, Lens Cloth, Lens Cover
Compatibility: Rifles with Picatinny Rails
Eye Relief: 3.0-3.5 in
Reticle: Illuminated Range Finder
Scope Range: Close to Mid Range, 300 Yards.
Magnification: 3x
FOV @100 yards: 3x: 36ft
One Piece Secure Mount
The scope has an integrated mount that secures quickly to any Picatinny rail equipped flat top rifle. Machined from 6061 grade aluminum, the scope is compact and lightweight, with a rigid one-piece design to minimize moving parts and potential points of failure.
About the Monstrum Company
Monstrum is a premium company for long gun scopes, optics, mounts, and other components used for firearms like rifles and long guns. They design and make their mounts, scopes, and related products using elements which are long lasting and durable. This includes the Monstrum Stealth Series 3×32 Rifle Scope (Black) by Monstrum. For additional shooting items, visit their website.
About Glass
Rifle scopes enable you to exactly align a rifle at various targets by lining up your eye with the target at range. They do this through magnifying the target by utilizing a series of lenses inside the scope. The scope’s alignment can be adjusted to take into account different ecological factors like wind speed and elevation increases or decreases to make up for bullet drop.
The scope’s purpose 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 point of impact. The majority of modern-day rifle scopes have around eleven parts which are located internally and on the exterior of the scope body. These parts include the rifle scope’s body, lenses, adjustment turrets or dials, objective focus rings, and other parts. Learn about the eleven parts of glass.
About Rifle Glass Types
Rifle scopes can be either “first focal plane” or “second focal plane” type of optics. Opting for the best type of rifle scope is based around what type of shooting you plan on doing.
Info on First Focal Plane Glass
Focal plane scopes (FFP) feature the reticle in front of the zoom lens. These kinds of scopes are beneficial for:
- Quick acquisition, long distance kinds of shooting
- Shooting circumstances where estimations are marginal
- Experienced shooters who understand their target “hold over” plus “lead” equations for their long gun
- Shooters who do not mind the reticle is bigger and requires more visual eyesight space than a SFP reticle
Second Focal Plane Optic Facts
Second focal plane scopes (SFP) include the reticle behind the magnifying lens. This triggers the reticle to stay at the same dimensions in connection with the amount of magnification being used. The final result is that the reticle dimensions alter based upon the zoom employed to shoot over longer distances considering that the markings represent different increments which vary with the zoom. In the FFP illustration with the SFP scope, the 5x “zoom” one hundred yard tick would be 1/5th of the non “zoom” tick measurement. These particular varieties of optics work for:
- Far away types of shooting where shooters have extra time to make ballistic computations
- Shooting where most of the shots take place within shorter ranges and proximities
- Shooters who select a clearer optic picture without area taken up by the enlarged FFP reticle
Glass Zoom
The amount of magnification a scope provides is identified 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 Rifle Glass Details
A single power rifle optic will have a magnification number designator like 4×32. This indicates the magnification power of the scope is 4x power and the objective lens is 32mm. The magnification of this kind of optic can not change given that it is a fixed power optic.
Variable Power Lens Glass
Variable power rifle scopes use enhanced power. The power change is performed using the power ring part of the scope near the back of the scope by the eye bell.
Scope Power and Range Correlation
Here are some recommended scope powers and the ranges where they may be effectively used. Remember that higher power scopes and optics will not be as effective as lower powered glass due to the fact that increased zoom can be a detractor. The same concept goes for longer distances where the shooter needs enough power to see exactly where to properly aim the rifle at the target.
About Optic Lens Finishes
All modern rifle scope lenses are layered. There are different types and qualities of lens finishings. When looking at luxury rifle optical devices, Lens finish can be a critical aspect of defining the capability of the rifle. The lenses are one of the most essential parts of the optic due to the fact that they are what your eye sees through while sighting a rifle in on the target. The coating on the lenses offers protection to the lens exterior and even assists with anti glare capabilities from excess daylight and color profiles.
HD Versus ED Rifle Optic Lens Coatings
Some scope manufacturers also use “HD” or high-definition lens coverings which use various methods, polarizations, chemicals, and aspects to draw out different colors and viewable definition through the lens. Some scope manufacturers use “HD” to refer to “ED” meaning extra-low dispersion glass.
Single Rifle Glass Lens Finish Versus Multi-Coating
Various optic lenses can likewise have different finishes applied to them. All lenses typically have at least some type of treatment or coating used to them before they are used in a rifle scope or optic.
This lens treatment can protect the lens from scratches while decreasing glare and other less beneficial 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 makers similarly make it a point to specify if their optic lenses are covered or “multi” covered. Being “much better” depends on the producer’s lens treatment technology and the quality of materials used in building the rifle scope.
Rifle Optic Lens Hydrophobic Covering
Water on a lens doesn’t assist with maintaining a clear sight picture through a scope at all. Lots of top of the line and military grade scope companies will coat their lenses with a hydrophilic or hydrophobic finishing.
Rifle Glass Installing Alternatives
Installing approaches 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 mounts which cradle the scope. These different kinds of mounts also usually come in quick release variations which use manual levers which enable rifle shooters to quickly install and remove the scope.
Scope Mounts with Hex Key Rings
Basic, clamp design mounting scope rings use hex head screws to position to the flattop style Picatinny scope mounting rails on rifles. These varieties of scope mounts use double detached rings to support the scope, and are normally made from 7075 T6 billet aluminum or similar materials which are designed for long distance accuracy shooting. This form of scope mount is exceptional for rifles which are in need of a durable, unfailing mount which will not move despite just how much the scope is moved about or jarring the rifle takes. These are the style of mounts you really want to have for a faithful optics system on a long distance hunting or tournament rifle which will hardly ever need to be changed or adjusted. Blue 242 Loctite threadlocker can additionally be used to stop the hex screws from backing out after they are installed firmly in place. An example of these mounting rings are the 30mm style from the Vortex Optics company. The set generally costs around $200 USD
Quick-Release Cantilever Scope Rings
These kinds of quick-release rifle scope mounts can be used to quickly attach and remove a scope from a rifle. If they all use a comparable design mount, multiple scopes can often be swapped in the field. The quick detach design is CNC crafted from anodized 6061 T6 aluminum and the mounting levers fasten solidly to a flat top design Picatinny rail. This enables the scope to be sighted in while on the rifle, taken off of the rifle, and remounted back on the rifle while retaining accuracy. These types of mounts come in practical for shooting platforms which are shipped a lot, to remove the scope from the rifle for protection, or for scopes which are employed in between multiple rifles. An example of this mount type is the 30mm mount designed by the Vortex Optics brand. It typically costs around $250 USD
Optic Tube Sealing and Gas Purging
Wetness inside your rifle optic can ruin a day of shooting and your pricey optic by causing fogging and creating residue inside of the scope tube. Many scopes avoid moisture from getting in the scope tube with a system of sealing O-rings which are waterproof.
What to Know About Scope Tube Gas Purging
Another part of avoiding the buildup of moisture inside of the rifle optic tube is filling the tube with a gas like nitrogen. Given that this space is already taken up by the gas, the glass is less affected by temperature level alterations and pressure differences from the outdoor environment which could possibly permit water vapor to leak in around the seals to fill the vacuum which would otherwise be there. These are good qualities of a good rifle scope to look for.
