High Speed BBs

  • Home
  • Real Steel
    • AR-15 Builder
    • About AR-15 Suppressors
    • Suppressor Covers
  • Learn About Airsoft
    • Airsoft Guns
    • How Airsoft Guns Work
    • Airsoft Pistols
    • Airsoft BBs
    • Rifle Scopes
    • Tactical Hand Signals
    • Airsoft Snipers
    • Fix Airsoft Guns
    • Game Rules
    • Airsoft Glossary
    • Play Airsoft
      • Find Airsoft Fields Nearby
      • Best Places to Play Airsoft
      • Top Stores
      • Store Finder
        • States & Cities
        • Store Reviews
      • Field Finder
  • Gun Reviews
    • Best Airsoft Sniper Rifles
    • The Coolest Airsoft Guns
    • Best Glock Pistols
    • Top Airsoft CO2 Pistols
    • Best KWA M4 Airsoft AEGs
    • Top Valken Airsoft AEGs
    • SMG Airsoft Guns <$200
    • Spring Airsoft Guns <$100
  • Gear Reviews
    • Best Airsoft BB Reviews
    • Top Tactical Airsoft Vests
    • MOLLE Pouch Reviews
    • Top-rated Airsoft Masks
    • Best Airsoft Goggles
    • Optimal Field Gear
    • Daily Deals & Discounts
    • Build Your Toolkit
  • Shop
    • Airsoft Rifles
    • Airsoft Pistols
    • Airsoft BBs
    • Airsoft Goggles
    • Airsoft Masks
    • Airsoft Tactical Vests
    • Tactical Pouches
You are here: Home / Rifle Scopes / Monstrum 3-9×32 Rifle Scope with Rangefinder Reticle | Monstrum Offset Picatinny Scope Rings | Bundle
Monstrum Rifle Scope 1 Monstrum 2-7x32 Rifle Scope with Rangefinder Reticle | Monstrum Offset Picatinny Scope Rings | Bundle
Monstrum Rifle Scope 4 Monstrum 2-7x32 Rifle Scope with Rangefinder Reticle | Monstrum Offset Picatinny Scope Rings | Bundle
Monstrum Rifle Scope 3 Monstrum 2-7x32 Rifle Scope with Rangefinder Reticle | Monstrum Offset Picatinny Scope Rings | Bundle
Monstrum Rifle Scope 2 Monstrum 2-7x32 Rifle Scope with Rangefinder Reticle | Monstrum Offset Picatinny Scope Rings | Bundle
Monstrum Rifle Scope 4 Monstrum 3-9x32 Rifle Scope with Rangefinder Reticle | ZR255 H-Series Offset Scope Mount | Monstrum Flip Up Lens Cover Set | Bundle
Monstrum Rifle Scope 6 Monstrum 2-7x32 Rifle Scope with Rangefinder Reticle | Monstrum Offset Picatinny Scope Rings | Bundle
Monstrum Rifle Scope 7 Monstrum 2-7x32 Rifle Scope with Rangefinder Reticle | Monstrum Offset Picatinny Scope Rings | Bundle

Monstrum 3-9×32 Rifle Scope with Rangefinder Reticle | Monstrum Offset Picatinny Scope Rings | Bundle

Was $91.90 - check current price

Check Out Monstrum 3-9×32 Rifle Scope with Rangefinder Reticle | Monstrum Offset Picatinny Scope Rings | Bundle. See Great Rifle Scopes By Monstrum.

Shop Deal

Highspeedbbs editors select and review airsoft products independently. We may earn affiliate commissions from buying links, which help support our testing. Support us.

SKU: b17f6d5d9fd0 Category: Rifle Scopes Tag: rifle scope
  • Description
  • Additional information

Description

Rifle Scope Product Details

Monstrum 3-9×32 Rifle Scope with Rangefinder Reticle | Monstrum Offset Picatinny Scope Rings | Bundle
The Monstrum Tactical S3932-R-RG is a high performance tactical scope, providing crystal clear optics at 3 to 9 times magnification for close to mid range shooting.
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.
Crafted from aircraft grade aluminum, the scope is both sturdy and lightweight, with a 1 inch sealed, nitrogen charged tube for resistance to water and fog. The scope is 9.6 Inches in length, 2 Inches in width, 2 Inches in height and 12 ounces in weight. It comes with lens covers and one 3V CR1632 battery.
Product bundle also includes a set of 1 inch offset cantilever scope rings for optimum scope placement. The rings extend forward 1.5 inch from the base and can be mounted in either direction dependent on your preferred scope placement and your mounting system.

Rifle Scope Product Features

About this item
Tactical rifle scope providing crystal clear targeting at 3-9x magnification, with a 32mm objective diameter and an eye relief of 3.5-3.8 Inches
Glass rangefinder reticle for on-the-fly range estimation and long distance targeting
Dial controlled reticle illumination in both red and green with multiple brightness intensities
Bundle includes a set of Monstrum Offset Cantilever Scope Rings for added flexibility for scope placement and optimum eye relief

About the Monstrum Brand

Monstrum is a premium maker for long gun scopes, optics, mounts, and other accessories used for guns like rifles and long guns. They innovate and supply their products by making the most of elements which are resilient and long lasting. This includes the Monstrum 3-9×32 Rifle Scope with Rangefinder Reticle | Monstrum Offset Picatinny Scope Rings | Bundle by Monstrum. For more shooting goods, visit their site.

What You Need to Know About Optics

Rifle scopes enable you to exactly align a rifle at various targets by lining up your eye with the target over a distance. They accomplish this through magnifying the target using a series of lenses inside the scope. The scope’s alignment can be adapted to account for numerous natural considerations like wind speed and elevation decreases to account for bullet drop.

The scope’s purpose is to understand exactly where the bullet will land based on the sight picture you are seeing through the optic as you line up the scope’s crosshair or reticle with the intended point of impact. Many modern rifle optics have about 11 parts which are found within and on the exterior of the scope. These scope parts consist of the rifle scope’s body, lenses, elevation turrets or dials, objective focus rings, and other parts. See all eleven parts of scopes.

The Varieties of Rifle Scopes

Rifle scopes can be either “first focal plane” or “second focal plane” style of scopes. The form of focal plane an optic has identifies where the reticle or crosshair is located relative to the optic’s magnifying adjustments. It literally means the reticle is located behind or in front of the magnification lens of the optic. Looking for the best kind of rifle glass depends on what variety of shooting or hunting you anticipate doing.

First Focal Plane Scope Facts

Focal plane scopes (FFP) come with the reticle in front of the magnification lens. This triggers 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 magnified range as they are at the non magnified range. One tick on a mil-dot reticle at 100 yards with no “zoom” is still the same tick at 100 yards by using 5x “zoom”. These types of scopes work for:

  • Quick acquisition, long distance types of shooting
  • Shooting circumstances where estimations are small
  • Experienced shooters who recognize their target “hold over” and also “lead” correlations for their rifles
  • Shooters who do not mind the reticle is enlarged and uses up more visual sight space than a SFP reticle

About Second Focal Plane Optics

Second focal plane optics (SFP) include the reticle behind the magnifying lens. This triggers the reticle to stay at the very same dimensions in relation to the level of magnification being used. The effect is that the reticle dimensions adjust based on the zoom employed to shoot over longer ranges due to the fact that the reticle markings present distinct increments which vary with the zoom level. In the FFP illustration with the SFP scope, the 5x “zoom” one hundred yard tick reticle measurement would be 1/5th of the non “zoom” tick measurement. These types of optics are handy for:

  • Far away styles of shooting where shooters have additional time to make ballistic computations
  • Shooting where most shots happen within shorter proximities and ranges
  • Shooters who desire a clearer optic sight picture with less room used up by the larger sized FFP reticle

Details on Glass Zoom

The level of scope magnification you need on your glass is based on the kind of shooting you want to do. Just about every type of rifle optic provides some level of zoom. The volume of magnification a scope supplies is established by the dimension, thickness, and curves of the lens glass within the rifle scope. The magnification of the optic is the “power” of the opic. This denotes what the shooter is aiming at through the scope is magnified times the power factor of what can normally be seen by human eyes.

Info About Single Power Lens Glass

A single power rifle optic comes with a magnification number designator like 4×32. This suggests the magnification power of the scope is 4x power and the objective lens is 32mm. The zoom of this kind of scope can not fluctuate because it is a set power scope.

Variable Power Lens Rifle Optics

Variable power rifle scopes can be tweaked between magnified levels. The power modification is accomplished by making use of the power ring part of the scope near the rear of the scope by the eye bell.

Rifle Glass Power Level and Range Correlation

Here are some advised scope power settings and the ranges where they may be efficiently used. Highly magnified glass will not be as efficient as lower powered glass since too much magnification can be a negative aspect depending on your shooting distance. The exact same idea applies to extended ranges where the shooter needs adequate power to see where to best aim the rifle at the target.

About Optic Lens Coating

All state-of-the-art rifle glass lenses are coated. Lens coating can be a vital aspect of a shooting platform when purchasing high end rifle optics and scope systems.

HD Versus ED Lenses

Some optic makers also use “HD” or high-definition glass coverings that apply different procedures, components, compounds, and polarizations to extract a wide range of colors and viewable definition through lenses. This HD finishing is typically used with increased density lens glass which brings down light’s ability to refract through the lens glass. Some scope brands 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 similarly called color distortion or fringing. Chromatic aberration may be visible over things with defined shapes as light hits the object from various angles.

Single Finish Versus Multi-Coating

Different optic lenses can likewise have various coatings used to them. All lenses usually have at least some type of treatment or finishing used to them before being used in a rifle scope or optic.

This lens treatment can safeguard the lens from scratches while reducing 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 on the scope maker and how much you paid for it.

Some scope producers also make it a point to specify if their optic lenses are layered or “multi” covered. Being “much better” depends on the manufacturer’s lens treatment technology and the quality of products used in developing the rifle scope.

Rifle Glass Lens Hydrophobic Finishing

Water on a lens doesn’t assist with keeping a clear sight picture through a scope at all. Numerous top of the line and military grade scope companies will coat their lenses with a hydrophilic or hydrophobic finishing.

Scope Installation Choices

Installing options for scopes come in a few 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 kinds of mounts also typically come in quick release versions which use manual levers which enable rifle operators to rapidly mount and remove the glass.

Hex Key Scope Rings

Standard, clamp design mounting scope rings use hex head screws to mount to the flattop design Picatinny scope installation rails on rifles. These types of scope mounts use two different rings to support the optic, and are made from 7075 T6 billet aluminum which are created for long distance accuracy shooting. This type of scope mount is great for rifles which require a resilient, rock solid mount which will not move no matter how much the scope is moved or abuse the rifle takes.

Quick-Release Cantilever Glass Ring Mounts

These types of quick-release rifle scope mounts can be used to rapidly detach a scope from a rifle and reattach it to a different rifle. If they all use a similar style mount, several scopes can often be switched on the range. The quick detach mount style is CNC crafted from anodized 6061 T6 aluminum and the mounting levers attach securely to a flat top type Picatinny rail. This allows the scope to be sighted in while on the rifle, removed from the rifle, and remounted back on the rifle while keeping 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 optics which are utilized between several rifles. An example of this mount type is the 30mm mount from Vortex Optics. It typically costs around $250 USD

Scope Tube Sealing and Gas Purging

Moisture inside your rifle scope can mess up a day of shooting and your expensive optic by triggering fogging and developing residue inside of the scope tube. Most scopes avoid wetness from going into the scope tube with a system of sealing O-rings which are waterproof.

Gas Purged Rifle Glass Tubes

Another part of preventing the accumulation of moisture inside of the rifle optic tube is filling the tube with a gas like nitrogen. Considering that this space is currently occupied by the gas, the glass is less impacted by temperature shifts and pressure differences from the outside environment which may potentially enable water vapor to seep in around the seals to fill the vacuum which would otherwise be there. These are good qualities of a good rifle scope to seek out.

Additional information

Category

Rifle Scopes

Brand

Monstrum

ASIN

B08LSRPXK8

Reviews

Over

Prime

Amazon Prime

Best Sellers

Last update on August 19, 2026 // Source: Amazon API

Customers Also Liked

  • Vector Optics Rifle Scope 1 Vector Optics 3X, 4X, 5X Tactical Maginifier with Flip-to-Side Detach Quick Release QD Picatinny Mount and Flip-up Scope Lens Cover for Red Dot Reflex Sight (Matte Black) (3X) (3X)

    Vector Optics 3X, 4X, 5X Tactical Maginifier with Flip-to-Side Detach Quick Release QD Picatinny Mount and Flip-up Scope Lens Cover for Red Dot Reflex Sight (Matte Black) (3X) (3X)

    Was $95.00 - check current price
    Shop Deal
  • Vector Optics Rifle Scope 1 Vector Optics Arbiter 1-4x24mm 1/2 MOA Compact Tactical Riflescope and Side Picatinny Rail QD Mount Combo (Matte Black)

    Vector Optics Arbiter 1-4x24mm 1/2 MOA Compact Tactical Riflescope and Side Picatinny Rail QD Mount Combo (Matte Black)

    Was $189.99 - check current price
    Shop Deal
  • Vector Optics Rifle Scope 1 Vector Optics Taurus 5-30x56mm First Focal Plane (FFP) 1/10 MIL Tactical Riflescope with Red Illuminated Reticle, Free 30mm Mount Rings, Lens Covers and KillFlash

    Vector Optics Taurus 5-30x56mm First Focal Plane (FFP) 1/10 MIL Tactical Riflescope with Red Illuminated Reticle, Free 30mm Mount Rings, Lens Covers and KillFlash

    Was $449.00 - check current price
    Shop Deal
  • Meprolight Rifle Scope 1 Meprolight Self-Powered Reflex Sight not Include The killflash

    Meprolight Self-Powered Reflex Sight not Include The killflash

    Was $449.00 - check current price
    Shop Deal

Our Links

Home
Terms of Service
Privacy Policy
Affiliate Link Policy
FTC Disclosure
Mission Statement
Media Kit
Marketplace
Contact Us

Shop Gear

Shop All
Airsoft Rifles
Airsoft Pistols
Airsoft BBs
Airsoft Goggles
Airsoft Masks
Tactical Vests
Tactical Pouches
Gun Cases

Product Disclaimer

We make great efforts to maintain reliable information on all airsoft and tactical products presented on High Speed BBs. However, the product information listed on highspeedbbs.com is provided without warranty. Users should always check the manufacturer's official website for warranties, user manuals, terms (if any), and product details. The airsoft product offers that appear on the website are from respective airsoft industry companies, suppliers, and stores from which High Speed BBs receives compensation. This compensation may impact how and where products appear on this site (including, for example, the order in which they appear). This site does not include all airsoft products or all available product offers.

Amazon Associate Disclosure

Amazon Disclosure: Highspeedbbs is a participant in the Amazon Services LLC Associates Program, an affiliate advertising program designed to provide a means for sites to earn advertising fees by advertising and linking to Amazon.com. FTC Disclosure: Some links may be affiliate links. We may get paid if you buy something or take an action after clicking one of these. You can learn more about this from our affiliate policy, terms of service, and privacy policy.

Brand Disclosure

Brand Disclosure: Product names, logos, brands, and other trademarks featured or referred to within our content and website are the intellectual property of their respective trademark holders. Any reference in this website to third party trademarks, brands, or logos is to identify the corresponding third party goods and/or services.

© 2026 HighSpeed BBs. All Rights Reserved