Description
Rifle Scope Product Details
Monstrum 3-9×32 AO Rifle Scope with Illuminated Range Finder Reticle and Parallax Adjustment | ZR255 H-Series Offset Scope Mount | Monstrum Flip Up Lens Cover Set | Bundle
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
Product Bundle includes Monstrum H-Series One Piece Offset Scope Mount; comparable in weight to a pair of scope rings while maintaining the added rigidity and convenience of a one piece mount; Includes hardened steel Torx mounting hardware for mounting to any Picatinny rail platform.
Product bundle includes a matching set of Monstrum Rubberized Flip Up Lens Covers. Spring loaded flip-up lens covers that rubberized sleeves that conform neatly around your rifle scope tube, protecting your expensive optics from dust and abrasion
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 long gun scopes, optics, mounting solutions, and other accessories used for guns like rifles and long guns. They style and make their scopes and related products by choosing building materials which are long lasting and resilient. This includes the Monstrum 3-9×32 AO Rifle Scope with Illuminated Range Finder Reticle and Parallax Adjustment | ZR255 H-Series Offset Scope Mount | Monstrum Flip Up Lens Cover Set | Bundle by Monstrum. For more shooting products, visit their website.
Info About Scopes
Rifle scopes permit you to exactly align a rifle at different targets by aligning your eye with the target at range. They accomplish this through magnifying the target by employing a set of lenses within the scope. The scope’s positioning can be adjusted for the consideration of varied environmental elements like wind speed and elevation decreases to make up 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 seeing with the optic as you align the scope’s crosshair or reticle with the intended point of impact. A lot of modern rifle optics have around eleven parts which are arranged within and outside of the scope. These optic pieces consist of the rifle scope’s body, lenses, windage turrets or dials, focus rings, and other elements. Learn about the eleven parts of scopes.
About Rifle Optic Styles
Rifle scopes can be either “first focal plane” or “second focal plane” type of optics. Picking the best type of rifle optic is based on what type of shooting you plan on doing.
About First Focal Plane Optics
Focal plane scopes (FFP) feature the reticle in front of the zoom lens. These kinds of scopes are useful for:
- Quick acquisition, long distance types of shooting
- Shooting scenarios where calculations are minimal
- Experienced shooters who have an idea for their aim point “hold over” and also “lead” equations for their weapon
- Shooters who do not mind the reticle is bigger and uses up more visual sight area than a SFP reticle
Second Focal Plane Optic Details
Second focal plane optics (SFP) feature the reticle to the rear of the magnifying lens. This induces the reticle to remain at the same overall size in connection with the quantity of zoom being used. The final result is that the reticle measurements adjust based on the zoom chosen to shoot over lengthier ranges because the reticle measurements present different increments which can vary with the magnification. In the FFP example with the SFP scope, the 5x “zoom” 100 yard tick reticle measurement would be 1/5th of the non “zoom” tick reticle measurement. These sorts of scopes work for:
- Far away forms of shooting where shooters have more time to make ballistic estimations
- Shooting where most of the shots take place within shorter proximities and ranges
- Shooters who would like a clearer optic picture without space used up by the larger sized FFP reticle
About Optic Magnification
The quantity of magnification a scope provides is figured out by the size, density, 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 Scope Info
A single power rifle optic comes with a zoom number designator like 4×32. This means 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 because it is a set power scope.
Info on Adjustable Power Lens Glass
Variable power rifle scopes can be changed between magnification increments. It will note the zoom amount in a configuration like 2-10×32. These numbers indicate the magnification of the scope can be set between 2x and 10x power. This also involves the power levels in-between 2 and 10. The power shift is accomplished by working with the power ring component of the scope near the rear of the scope by the eye bell piece.
The Power and Range Correlation of Rifle Glass
Here are some recommended scope powers and the ranges where they may be efficiently used. Highly magnified rifle scope glass will not be as effective as lower magnification glass due to the fact that too much magnification can be a bad thing. The same idea goes for extended ranges where the shooter needs to have enough power to see where to best aim the rifle at the target.
Glass Lens Finishing
All modern rifle scope lenses are layered. Lens coating can be an essential element of a rifle when buying high end rifle optics and scope equipment.
Info on Glass Lens Coatings – HD Versus ED
Some scope producers also use “HD” or high-definition lens finishes which use various procedures, chemicals, polarizations, and aspects to draw out different colors and viewable quality through the lens. Some scope manufacturers use “HD” to refer to “ED” meaning extra-low dispersion glass.
About Single Finish Versus Multi-Coating
Different optic lenses can likewise have different finishings applied to them. All lenses generally have at least some type of treatment or finishing applied to them prior to being used in a rifle scope or optic.
This lens treatment can protect the lens from scratches while lowering glare and other less beneficial things experienced in the shooting environment while sighting in with the scope. The quality of a single covered lens depends on the scope maker and how much you paid for it.
Some scope makers also make it a point to define if their optic lenses are covered or “multi” covered. This means the lens has had several treatments applied to the surfaces of the glass. If a lens gets several treatments, it can indicate that a company is taking several actions to combat various natural factors like an anti-glare covering, a scratch resistant anti-abrasion finishing, followed by a hydrophilic finish. This also does not always indicate the multi-coated lens will perform better than a single covered lens. Being “better” hinges on the maker’s lens treatment technology and the quality of components used in building the rifle glass.
Hydrophobic Lens Finishes
Water on an optic’s lens doesn’t improve preserving a clear sight picture through a scope in any way. Numerous top of the line or premium scope producers will coat their lenses with a hydrophilic or hydrophobic finish. The Steiner Optics Nano-Protection is a good example of this sort of treatment. It provides protection for the surface of the Steiner scope lens so the H2O particles can not bind to it or create surface tension. The result is that the water beads move off of the scope to maintain a clear, water free sight picture.
Alternatives for Mounting Optics on Firearms
Mounting approaches for scopes come in a few choices. There are the basic scope rings which are separately installed to the scope and one-piece scope mounts which cradle the scope. These different types of mounts also normally can be found in quick release versions which use manual levers which allow rifle operators to quickly mount and dismount the optics.
Hex Key Rifle Scope Rings
Standard, clamp-on design mounting scope rings use hex head screws to fix to the flattop design Picatinny scope mounting rails on the tops of rifles. These varieties of scope mounts use a pair of detached rings to support the scope, and are normally constructed from 7075 T6 billet aluminum or similar materials which are made for long distance accuracy shooting. This kind of scope mount is very good for rifles which are in need of a long lasting, hard use mount which will not move no matter how much the scope is moved about or jarring the rifle takes. These are the type of mounts you really want to have for a specialized optics setup on a long distance scouting or tournament firearm that will hardly ever need to be changed or recalibrated. Blue 242 Loctite threadlocker can also be used on the screws to stop the hex screw threads from wiggling out after they are installed securely in position. An example of these mounting rings are the 30mm type made by Vortex Optics. The set typically costs around $200 USD
Quick-Release Cantilever Scope Ring Mounts
These kinds of quick-release rifle scope mounts can be used to quickly connect and take off a scope from a rifle. A wide range of scopes can also be swapped out if they all use a complementary style mount. The quick detach design is CNC crafted from anodized 6061 T6 aluminum and the mounting levers connect securely to a flat top design Picatinny rail. This lets the scope to be sighted in while on the rifle, removed from the rifle, and remounted back on the rifle while retaining precision. These kinds of mounts come in convenient for rifles which are transferred a lot, to take off the scope glass from the rifle for protection, or for scopes which are chosen for use in between multiple rifles. An example of this mount style is the 30mm mount from Vortex Optics. It typically costs around $250 USD
About Scope Tube Sealing and Gas Purging
Moisture inside your rifle optic can ruin a day of shooting and your highly-priced optic by resulting in fogging and generating residue within the scope’s tube. Most scopes prevent wetness from entering the optical tube with a system of sealing O-rings which are waterproof. Usually, these scopes can be immersed underneath 20 or 30 feet of water before the water pressure can push moisture past the O-rings. This should be plenty of moisture avoidance for basic use rifles for hunting and sporting purposes, unless you intend on taking your rifle aboard watercrafts and are worried about the optic still working if it is submerged in water and you can still rescue the rifle.
Gas Purged Rifle Optic Tubes
Another element of preventing the accumulation of wetness within the rifle scope tube is filling the tube with a gas like nitrogen. Since this space is already occupied by the gas, the scope is less influenced by temp changes and pressure variations from the outdoor environment which may possibly allow water vapor to permeate 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.










