Description
Last update on February 6, 2023 // Source: Amazon API
Rifle Scope Accessory Product Details
Mako Group Mepro 21 / Meprolight M21 Illuminator REM 21 (Reticle Enhancement Module)
This fits the Mepro 21M model. There needs to be custom fitting for the older Mepro 21I or IDF models. Let me know what you have. The Reticule Enhancement Module 21 (REM 21) fixes the problem that is inherent in the Mepro 21 sight. We all know in certain low light conditions or when aiming at bright or light colored backgrounds, the Mepro 21 loses its sight picture. When that happens just turn on the REM 21 and you will get a sharp sight picture. The REM 21 Illuminates the light collector fiber optics on the Mepro 21. The REM 21 has 11 illumination settings so the cross hairs can be seen outdoors in daylight on its brightest setting (even against snow or white backgrounds) or in total darkness on its lowest setting. The REM 21 does not interfere with the Tritium illumination of the Sight. The REM 21 uses one CR2032 3 volt battery (included.) The battery life is 106 hours of continuous use. You can also use TWO CR2016 batteries for an even brighter sight picture. (Batteries sold separately) The REM 21 has a 1 YEAR Warranty. I will replace it if it fails due to a manufacturing problem. (I will have to examine it first to make sure there wasn’t some other factor that caused the failure). You just pay for the shipping ($5.00). If after 1 year a manufacturing problem should occur… contact me and I will see what I can do for you. The REM 21 comes with a 30 day money back guarantee. If you are dissatisfied with it, please send it back to me and I will give you a full refund (minus shipping costs.) IWI has tested this for several months and it passed all their tests. Very Rugged! It has been tested to 170 F and 0 degrees F.
Rifle Scope Accessory Product Features
11 light settings
About the MRE Brand
MRE is a premium maker for firearm scopes, optics, mounts, and other accessories used for guns like rifles and long guns. They innovate and build their scopes and related products by using building materials which are long lasting and durable. This includes the Mako Group Mepro 21 / Meprolight M21 Illuminator REM 21 (Reticle Enhancement Module) by MRE. For more shooting goods, visit their site.
Rifle Scope Details
Rifle scopes enable 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 series of lenses inside the scope. The scope’s positioning can be adjusted for consideration of many ecological considerations like wind and elevation increases or decreases to make up for bullet drop.
The scope’s function is to help the shooter 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 target. Many modern rifle optics have around eleven parts which are found within and outside of the scope. These optic pieces consist of the rifle scope’s body, lenses, windage and elevation dials, focus rings, and other components. Learn about the eleven parts of scopes.
The Styles of Rifle Scopes
Rifle scopes can be either “first focal plane” or “second focal plane” type of scopes. Going for the perfect type of rifle optic is based around what type of shooting you plan on doing.
First Focal Plane Scope Details
First focal plane scopes (FFP) come with the reticle before the zoom lens. This induces the reticle to increase in size based on the extent of zoom being used. The benefit is that the reticle measurements are the same at the magnified distance as they are at the non amplified range. One tick on a mil-dot reticle at one hundred yards without “zoom” is still the exact same tick at one hundred yards by using 5x “zoom”. These kinds of scopes work for:
- Quick acquisition, long distance types of shooting
- Shooting circumstances where calculations are marginal
- Experienced shooters who recognize their aim point “hold over” and also “lead” ratios for their rifles
- Shooters who do not mind the reticle is bigger and uses up more visual sight room than a SFP reticle
Info About Second Focal Plane Optics
Second focal plane scopes (SFP) come with the reticle behind the magnification lens. In the FFP example with the SFP scope, the 5x “zoom” 100 yard tick measurement would be 1/5th of the non “zoom” tick reticle measurement.
- Far away types of shooting where shooters have more time to make ballistic computations
- Shooting where most shots take place within much shorter ranges and spaces
- Shooters who select a clearer optic sight picture with less room taken up by the enlarged FFP reticle
Rifle Scope Zoom
The level of scope magnification you need on your glass is based on the form of shooting you plan to do. Almost every kind of rifle scope provides some degree of magnification. The amount of magnification a scope offers is identified by the size, thickness, and curvatures of the lens glass within the rifle optic. The magnification of the scope is the “power” of the glass. This means what the shooter is checking out through the scope is magnified times the power aspect of what can typically be seen by human eyes.
Info About Fixed Power Lens Scopes
A single power rifle optic uses a zoom number designator like 4×32. This indicates the magnification power of the scope is 4x power while the objective lens is 32mm. The zoom of this kind of optic can not fluctuate considering that it is a fixed power optic.
Variable Power Lens Rifle Optic Facts
Variable power rifle scopes have adjustable power. It will list the zoom amount in a configuration such as 2-10×32. These numbers mean the magnification of the scope can be changed in between 2x and 10x power. This also involves the powers in-between 2 and 10. The power manipulation is achieved by applying the power ring component of the scope near the rear of the scope by the eye bell piece.
The Power Level and Range of Rifle Glass
Here are some advised scope powers and the distances where they could be successfully used. Bear in mind that high magnification optics will not be as efficient as lower powered glass due to the fact that too much magnification can be a bad thing. The same concept goes for longer ranges where the shooter needs to have sufficient power to see exactly where to best aim the rifle at the target.
About Lens Covering
All modern rifle scope lenses are covered in special coatings. There are different types and qualities of glass coatings. Lens coating is an important element of a rifle’s setup when looking at luxury rifle optics and targeting units. The glass lenses are one of the most vital pieces of the scope because they are what your eye sees through while sighting a rifle in on the target. The covering on the lenses offers protection to the lens exterior as well as helps with anti glare capabilities from excess natural light and color discernibility.
HD Versus ED Lenses
Some scope makers also use “HD” or high-definition lens finishings which use various processes, components, polarizations, and chemicals to draw out various colors and viewable definition through the lens. Some scope manufacturers use “HD” to refer to “ED” to signify the lens has extra-low dispersion glass.
Single Glass Lens Covering Versus Multi-Coating
Various scope lenses can also have different finishings applied to them. All lenses generally have at least some kind of treatment or covering applied to them before being used in a rifle scope or optic. This is because the lens isn’t just a raw piece of glass. It becomes part of the finely tuned optic. It must have a coating applied to it so that it will be efficiently functional in many types of environments, degrees of light (full light VS shaded), and other shooting conditions.
Single coated lenses have a treatment applied to them which is generally a protective and enhancing multi-purpose treatment. This lens treatment can shield 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 covered lens depends upon the scope developer and how much you spent for it. Both the make and cost are indicators of the lens quality.
Some scope makers also make it a point to specify if their optic lenses are covered or “multi” covered. This implies the lens has had numerous treatments applied to the surfaces. If a lens gets several treatments, it can establish that a manufacturer is taking multiple actions to combat different natural aspects like an anti-glare coating, a scratch resistant anti-abrasion finishing, followed by a hydrophilic finishing. This also does not always suggest the multi-coated lens is much better than a single covered lens. Being “better” depends upon the producer’s lens treatment technology and the quality of products used in developing the rifle scope.
Hydrophobic Rifle Glass Lens Finishing
Water on a lens does not improve retaining a clear sight picture through a scope at all. Many top of the line and high-end optic manufacturers will coat their lenses with a hydrophilic or hydrophobic covering. The Steiner Optics Nano-Protection is a good example of this kind of treatment. It provides protection for the surface of the Steiner scope lens so the H2O molecules can not bind to it or create surface tension. The outcome is that the water beads slide off of the scope to preserve a clear, water free sight picture.
Alternatives for Installing Rifle Scopes on Firearms
Installing options for scopes are available in a couple of options. There are the standard scope rings which are individually mounted to the scope and one-piece scope mounts which cradle the scope. These different kinds of mounts also normally can be found in quick release versions which use throw levers which enable rifle operators to rapidly install and remove the scope.
Rifle Scope Mounts with Hex Key Rings
Basic, clamp style mounting scope rings use hex head screws to install to the flattop style Picatinny scope mounting rails on rifles. These forms of scope mounts use two detached rings to support the optic, and are made from 7075 T6 billet aluminum or similar materials which are developed for long distance accuracy shooting. This form of scope mount is very good for rifle systems which are in need of a long lasting, rock solid mount which will not change regardless of how much the scope is moved or abuse the rifle takes. These are the style of mounts you should have for a devoted scope setup on a long distance scouting or hard target interdiction long gun which will rarely need to be modified or adjusted. Blue 242 Loctite threadlocker can also be used on the screws to keep the hex screw threads from backing out after they are mounted tightly in position. An example of these mounting rings are the 30mm style from Vortex Optics. The set usually costs around $200 USD
Scope Mounting Solutions with Quick-Release Cantilever Rings
These types of quick-release rifle scope mounts can be used to quickly detach a scope and attach it to a different rifle. Numerous scopes can also be swapped out if they all use a compatible 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 scopes which are used in between multiple rifles.
Sealing and Gas Purging for Scope Tubes
Wetness inside your rifle scope can destroy a day of shooting and your costly optic by bringing about fogging and producing residue inside of the scope tube. Many scopes prevent wetness from getting in the scope tube with a system of sealing O-rings which are waterproof.
Gas Purged Scope Tubes
Another component of avoiding the buildup of wetness within 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 scope is less altered by temp shifts and pressure differences from the outside environment which might potentially enable water vapor to leak in around the seals to fill the void which would otherwise exist. These are good qualities of a decent rifle scope to look for.
