Last update on August 14, 2022 // Source: Amazon API
Handgun Sight Product Details
XS Sight Systems, Big Dot Tritium Express Set, Tritium Front and White Stripe Rear, For Ruger LC9/LC380
The XS Sights DXW Big Dot are defensive night sights for encounters under any light condition. The Express rear sight features a vertical white stripe at the base of the shallow V. The front sight has a large, easy-to-see white ring surrounding the tritium dot. Rounded, low profile design won’t slow your draw and works with the majority of holsters on the market. Designed to directly replace the factory sights. Features: – Larger front sight improves the speed of front sight acquisition – White dot reflects light for best visibility in low light – Express Rear prevents obstruction of front sight when moving – Snag-free design for comfortable carry – Green Tritium Specifications: – Sight Set – Fits: Ruger LC9, LC9s, LC380 – File to fit installation (no sight pusher tools) – Front Sight: White Big Dot with Green Tritium Center – Rear Sight: White Stripe (Non-Tritium) – Material: Blued Steel – Finish: Matte Black – Includes: Hardware Kit
Handgun Sight Product Features
XS Sight Systems
About the XS Sight Systems Brand
XS Sight Systems is a premium company for firearm scopes, optics, mounting solutions, and other add-ons used for guns like rifles and long guns. They innovate and build their products choosing building materials which are resilient and long lasting. This includes the XS Sight Systems, Big Dot Tritium Express Set, Tritium Front and White Stripe Rear, For Ruger LC9/LC380 by XS Sight Systems. For more shooting products, visit their site.
Rifle scopes allow you to specifically align a rifle at various targets by lining up your eye with the target over a range. They do this through magnifying the target by using a set of lenses inside the scope. The scope’s alignment can be adapted for consideration of varied environmental aspects like wind and elevation to make up for bullet drop.
The scope’s purpose is to help shooters understand precisely where the bullet will hit based upon the sight picture you are viewing using the scope as you line up the scope’s crosshair or reticle with the intended point of impact. The majority of modern rifle scopes and optics have about eleven parts which are arranged inside and externally on the optic. These parts include the rifle scope’s body, lenses, elevation turrets, objective focus rings, and other parts. Learn about the eleven parts of optics.
The Types of Rifle Scopes
Rifle scopes can be either “first focal plane” or “second focal plane” type of scopes. Considering the best type of rifle optic is based around what type of shooting you plan on doing.
First Focal Plane Optics
Focal plane scopes (FFP) feature the reticle in front of the zoom lens. This triggers the reticle to increase in size based upon the extent of zoom being used. The benefit is that the reticle measurements are the same at the amplified range as they are at the non magnified range. For example, one tick on a mil-dot reticle at 100 yards without any “zoom” is still the exact same tick at 100 yards with 5x “zoom”. These types of scopes are beneficial for:
- Quick acquisition, far away types of shooting
- Shooting scenarios where estimations are minimal
- Experienced shooters who recognize their target “hold over” and also “lead” equations for their long gun
- Shooters who don’t mind the reticle is bigger and takes up more visual eyesight area than a SFP reticle
Second Focal Plane Optic Facts
Second focal plane glass (SFP) include the reticle to the rear of the magnifying lens. This causes the reticle to stay at the same dimensions relative to the volume of zoom being used. The effect is that the reticle dimensions alter based upon the magnification applied to shoot over greater ranges given that the reticle markings present various increments which differ with the zoom level. 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 measurement. These particular styles of optics are convenient for:
- Far away forms of shooting where shooters have additional time to make ballistic estimations
- Shooting where most shots occur within shorter ranges and proximities
- Shooters who select a clearer optic picture without area used up by the larger sized FFP reticle
Zoom for Rifle Optics
The extent of scope magnification you need depends upon the style of shooting you would like to do. Nearly every style of rifle scope provides some amount of zoom. The volume of zoom a scope delivers is identified by the size, density, and curvatures of the lenses inside of the rifle optic. The magnifying level of the optic is the “power” of the opic. This indicates what the shooter is observing through the scope is magnified times the power aspect of what can usually be seen by human eyes.
Fixed Power Lens Scopes
A single power rifle scope and optic uses 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 type of scope can not fluctuate since it is a set power scope.
Variable Power Lens Rifle Optic Info
Variable power rifle scopes use variable power levels. The power change is accomplished by using the power ring part of the scope near the rear of the scope by the eye bell.
The Power Level and Range Correlation of Rifle Glass
Here are some recommended scope powers and the ranges where they may be effectively used. Always remember that higher magnification optics and scopes will not be as effective as lower powered optics because too much zoom can be a detractor. The same idea applies to extended distances where the shooter needs to have sufficient power to see where to best aim the rifle at the target.
Lens Finishing for Glass
All state-of-the-art rifle optic lenses are covered. Lens finish can be an essential aspect of a rifle when considering high end rifle optics and scope equipment.
Details on Optic Lens Coatings – HD Versus ED
Some optic suppliers additionally use “HD” or high-definition glass coatings which use different procedures, components, rare earth compounds, and polarizations to extract numerous color ranges and viewable target definition through lenses. This high-definition covering is frequently used with more costly, high density lens glass which lowers light’s capability to refract through the lens glass. Some scope brands use “HD” to describe “ED” implying extra-low dispersion glass. ED handles how certain colors are presented on the chroma spectrum and the chromatic aberration or deviance which is similarly called color distortion or fringing. Chromatic aberration may be obvious around objects with defined shapes as light hits the item from particular angles.
Rifle Optic Lens Single Finishing Versus Multi-Coating
Different optic lenses can likewise have various coatings applied to them. All lenses usually have at least some type of treatment or finish used to them before they are used in a rifle scope or optic.
Single layered lenses have a treatment applied to them which is normally a protective and boosting multi-purpose treatment. This lens treatment can shield the lens from scratches while reducing glare and other less beneficial things experienced in the shooting environment while sighting in with the optic. The quality of a single covered lens depends on the scope developer and how much you spent paying for it. Both the manufacturer and amount are indicators of the lens quality.
Some scope manufacturers also make it a point to specify if their optic lenses are coated or “multi” covered. Being “much better” depends on the manufacturer’s lens treatment technology and the quality of materials used in constructing the rifle scope.
Hydrophobic Finishing for Rifle Glass
Water on a lens doesn’t help with preserving a clear sight picture through a scope at all. Lots of top of the line and military grade optic makers will coat their lenses with a hydrophilic or hydrophobic finish.
Rifle Scope Installing Options
Installing solutions for scopes can be found in a few options. There are the basic scope rings which are individually installed to the scope and one-piece scope mounts which cradle the scope. These different kinds of mounts also normally come in quick release variations which use throw levers which enable rifle operators to rapidly install and remove the optics.
Hex Key Scope Rings
Normal, clamp design mounting scope rings use hex head screws to mount to the flattop style Picatinny scope installation rails on rifles. These types of scope mounts use a couple of different rings to support the optic, and are often made from 7075 T6 billet aluminum which are created for long range accuracy shooting. This type of scope install is wonderful for rifles which need a long lasting, 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 Rings
These types of quick-release rifle scope mounts can be used to quickly remove a scope and attach it to a different rifle. Numerous scopes can also be swapped out if they all use a similar style mount. These types of mounts are convenient for long guns which are transported a lot, to remove the optic from the rifle for protecting the scope, or for optics which are used between several rifles.
Optic Tube Sealing and Gas Purging
Wetness inside your rifle optic can mess up a day of shooting and your expensive optic by bringing about fogging and producing residue inside of the scope tube. Many scopes prevent wetness from going into the scope tube with a system of sealing O-rings which are water resistant.
Optic Gas Purging
Another part of avoiding the accumulation of moisture inside of the rifle optic tube is filling the tube with a gas like nitrogen. Since this space is already taken up by the gas, the glass is less altered by climate shifts and pressure distinctions from the external 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 decent rifle scope to seek out.