Description
Last update on March 29, 2023 // Source: Amazon API
Rifle Scope Product Details
Osprey Global Compact Scope 3-9X42 with Rangfinder Reticle
Rifle Scope Product Features
Length: 8.87-Inch, Tube Diameter: 30mm
Objective: 42mm, eye relief: 4.91 to 8.85-Inch, MOA: 1/2
Fog proof, water proof, shock proof, dust covers and ring mounts Included
Illuminated mil-dot/range finding glass reticle, magnification: 3-9
OSPREY GLOBAL COMPACT 3-9X42 IRF WITH RANGEFINDER RETICLE, MATTE BLACK FINISH
Osprey compact rifle scopes insure the quickest acquisition of your target. Perfect for close quarters, as well as long range accuracy, making it the perfect fit for any picatinny rail with the industry’s best eye relief. Includes dust covers and rings. BDC: 308/243; 223; 7.62×39; 30-06/25-06/270WIN
SCOPE HIGHLIGHTS:
Imported 3M epoxy and hermetic grease from the United States.
Optical glass from Hoya of Japan.
Spin centered for balance.
Anti-reflective paint applied and light stops added to reduce reflections and provide high-contrast image.
Illuminated Range Finding Glass Reticle with gradual brightness controls.
Includes dust covers and ring mounts.
3-9X42 MDG/IRF SPECIFICATIONS:
Fog Proof: Tested at 20 degrees C for thirty minutes and removed to ambient (scope must completely clear in 2 minutes)
Waterproof: Tested at 25 cm/40 degrees C for three minutes
Magnification 3-9
Objective: 42 mm
Tube Diameter: 30 mm
Eye Relief: 4.91″ ” 8.85″
MOA: 1/2
Shock Proof: Shock-resistant; recoil tested at 50 BMG parameters (1000g/0.4-0.8 ms)
Reticle: Rangefinder
Illumination: Red; Blue; Green
Length: 8.87″
Weight: 17.6 Ounces
Battery: One (1) CR2032
Finish: Matte Black
OSPREY GLOBAL COMPACT SCOPES:
Compact 3-9×42 IRF Compact 4×32 MDG 1-4×24 MDG 1-6×24 IRF 2.5-10×40 MDG 4×32 MOA
Length: 8.87 inches 5.5 inches 10.72 inches 10.02 inches 7.92 inches 5.5 inches
Finish: Rubber molded/matte black Matte black Matte black Matte black Matte black Matte black
Weight: 17.6 ounces 15.9 ounces 17.3 ounces 16.7 ounces 19.23 ounces 16.93 ounces
Tube Diameter: 30mm 30 mm 30 mm 30 mm 1 inch 30 mm
Illumination: Red, blue, green Red, blue, green Red, blue, green Red, blue, green Red, green Red, blue, green
Objective: 42 mm 32 mm 24 mm 24 mm 40 mm 30 mm
Reticle: Rangefinder Mildot Mildot Rangefinder Mildot N/A
Eye Relief: 8.85″ ” 4.91″ 4.72″ 7.87″ ” 4.72″ 7.08″ ” 3.74″ 4.72″ ” 3.13″ 75mm
MOA: 1/2″ 1/2″ 1/4″ 1/4″ 1/4″ 1/4″
Magnification: 3-9 4 Fixed 1-4 1-6 2.5-10 4
About the Osprey Global Manufacturer
Osprey Global is a premium supplier for firearm scopes, optics, mounts, and other accessories used for firearms like rifles and long guns. They create and make their scopes, mounts, and related products making the most of building materials which are durable and long lasting. This includes the Osprey Global Compact Scope 3-9X42 with Rangfinder Reticle by Osprey Global. For additional shooting items, visit their site.
What You Need to Know About Rifle Scopes
Rifle scopes enable you to precisely aim a rifle at different targets by aligning your eye with the target over a distance. They accomplish this through magnification using a set of lenses within the scope. The scope’s alignment can be adapted for consideration of various environmental aspects like wind and elevation increases or decreases to account for bullet drop.
The scope’s purpose is to understand exactly where the bullet will hit based on the sight picture you are seeing using the scope as you align the scope’s crosshair or reticle with the target. Many modern-day rifle scopes and optics have about eleven parts which are arranged internally and externally on the scope. These parts consist of the rifle scope’s body, lenses, modification turrets, objective focus rings, and other components. See all eleven parts of an optic.
About Optic Varieties
Rifle scopes can be either “first focal plane” or “second focal plane” type of optics. Deciding upon the best type of rifle glass is based around what type of shooting you plan to do.
Info About First Focal Plane Optics
Focal plane scopes (FFP) include the reticle in front of the zoom lens. These kinds of scopes are beneficial for:
- Quick acquisition, far away types of shooting
- Shooting circumstances where calculations are low
- Experienced shooters who know their target “hold over” and “lead” equations for their rifles
- Shooters who do not mind the reticle is bigger and occupies more visual eyesight area than a SFP reticle
Info About Second Focal Plane Scopes
Second focal plane glass (SFP) include the reticle to the rear of the magnifying lens. This causes the reticle to remain at the same dimensions in connection with the amount of magnification being used. The effect is that the reticle dimensions shift based on the magnification chosen to shoot over longer ranges since the reticle markings represent various increments which differ with the magnification. In the FFP illustration with the SFP glass, the 5x “zoom” one hundred yard tick would be 1/5th of the non “zoom” tick measurement. These varieties of scopes are convenient for:
- Long distance forms of shooting where shooters have increased time to make ballistic estimations
- Shooting where most shots take place within much shorter spaces and ranges
- Shooters who desire a clearer optic picture without area taken up by the bigger FFP reticle
Ins and Outs of Optic Zoom
The extent of scope zoom you need depends upon the form of shooting you choose to do. Just about every type of rifle glass offers some degree of zoom. The quantity of magnification a scope delivers is identified by the dimension, thickness, and curves of the lenses within the rifle optic. The magnification of the optic is the “power” of the glass. This signifies what the shooter is looking at through the scope is amplified times the power aspect of what can typically be seen by human eyes.
Single Power Lens Rifle Scopes
A single power rifle scope and optic uses a zoom number designator like 4×32. This implies the magnification power of the scope is 4x power while the objective lens is 32mm. The magnification of this type of scope can not fluctuate since it is fixed.
About Adjustable Power Lens Rifle Optics
Variable power rifle scopes use variable power levels. The power adjustment is performed by the power ring part of the scope near the back of the scope by the eye bell.
Power Levels and Range Correlations
Here are some suggested scope power settings and the ranges where they can be successfully used. Highly magnified glass will not be as beneficial as lower powered optics since too much magnification can be a bad thing. The same idea applies to longer ranges where the shooter needs to have enough power to see exactly where to best aim the rifle.
About Lens Coverings
All modern rifle optic lenses are covered in special coatings. There are various types and qualities of lens coverings. When looking at luxury rifle scope systems, Lens coating can be an important component of defining the capability of the rifle. The lenses are one of the most crucial pieces of the glass because 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 and also helps with anti glare capabilities from excess direct sunlight and color profiles.
About Lens Coatings – HD Versus ED
Some glass suppliers will also use “HD” or high-def glass coatings which make the most of different processes, polarizations, chemicals, and aspects to enhance different color ranges and viewable definition through the lens. This high-def coating is frequently used with more costly, high density lens glass which decreases light’s chance to refract through the lens glass. Some scope manufacturers use “HD” to refer to “ED” meaning extra-low dispersion glass. ED deals with how certain colors are presented on the chromatic spectrum and the chromatic aberration or difference which is also called color distortion or fringing. Chromatic aberration is often obvious over objects with defined outlines as light hits the object from various angles.
Single Finish Versus Multi-Coating for Scopes
Different optic lenses can also have different finishings used to them. All lenses normally have at least some type of treatment or finish applied to them before they are used in a rifle scope or optic.
Single coated lenses have a treatment applied to them which is typically a protective and enhancing multi-purpose treatment. This lens treatment can preserve the lens from scratches while lowering glare and other less advantageous things experienced in the shooting environment while sighting in with the scope. The quality of a single layered lens depends upon the scope maker and just how much you spent on it. Both are signs of the lens quality.
Some scope manufacturers similarly make it a point to specify if their optic lenses are covered or “multi” coated. Being “much better” depends on the producer’s lens treatment innovation and the quality of materials used in building the rifle scope.
Hydrophobic Finish for Scopes
Water on an optic’s lens does not help with keeping a clear sight picture through an optic at all. Numerous top of the line or high-end scope producers will coat their lenses with a hydrophilic or hydrophobic finishing. The Steiner Optics Nano-Protection is a fine example of this type of treatment. It treats the surface of the Steiner scope lens so the H2O particles can not bind to it or produce surface tension. The result is that the water beads roll off of the scope to maintain a clear, water free sight picture.
Choices for Installing Rifle Glass on Firearms
Installing solutions for scopes come in a couple of choices. There are the basic scope rings which are individually mounted to the optic 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 permit rifle shooters to quickly install and remove the glass.
Hex Key Rifle Scope Ring Mounting Solutions
Normal, clamp design mounting scope rings use hex head screws to mount to the flattop design Picatinny scope mount rails on rifles. These types of scope mounts use a couple of separate rings to support the optic, and are made from 7075 T6 billet aluminum which is designed for long range accuracy shooting. This type of scope install is great for rifles which need a resilient, rock solid mounting solution which will not move no matter how much the scope is moved or abuse the rifle takes.
Quick-Release Cantilever Glass Ring Mounting Solutions
These types of quick-release rifle scope mounts can be used to rapidly attach and remove a scope from a rifle before reattaching it to a different rifle. Several scopes can even be switched out if they all use a similar style mount. These types of mounts are convenient for rifles which are transferred a lot, to swap out the optic from the rifle for protecting the scope, or for optics which are used between several rifles.
Rifle Optic Tube Sealing and Gas Purging
Wetness inside your rifle scope can wreck a day on the range and your expensive optic by resulting in fogging and developing residue within the scope tube. The majority of optics prevent humidity from going into the scope tube with a system of sealing O-rings which are waterproof. Generally, these water-resistant optics can be submerged within 20 or 30 feet of water before the water pressure can push moisture past the O-rings. This should be more than enough humidity avoidance for conventional use rifles for hunting and sporting purposes, unless you intend on taking your rifle aboard watercrafts and are concerned about the optic still functioning if it goes over the side and you can still rescue the firearm.
Glass Gas Purging
Another part of preventing the buildup of wetness inside of the rifle optic’s tube is filling the tube with a gas like nitrogen. Considering that this area is already taken up by the gas, the optic is less influenced by condition changes and pressure differences from the external environment which could possibly permit water vapor to leak in around the seals to fill the void which would otherwise be there. These are good qualities of a good rifle scope to seek out.
