Description
Rifle Scope Product Details
Crimson Trace 3-9x40mm 1 Series Mid-Range Sport Riflescope with SFP, Duplex Reticle and Scope Rings for Hunting, Shooting and Outdoor
The CSA-1309 1 Series is a feature rich 3-9x40mm mid-range rifle scope that has been purposefully built from the ground up. The scopes Second Focal Plane Duplex Reticle and impressive glass makes for an unparalleled shooting experience. All Crimson Trace Scopes are covered under a Full Lifetime Warranty.
Rifle Scope Product Features
About this item
SPECS: 3-9 magnification with a 40mm lens diameter
ACCURACY: Features a second focal plane, non-illuminated, traditional duplex MOA reticle
EASE OF USE: Windage (side) and elevation (top) knobs are capped and can be easily unscrewed and adjusted when sighting in at the range using a coin or a like-shaped object
DURABLE: Constructed of anodized aluminum with multi-coated lenses and comes with a Lifetime Warranty
INCLUDES: Horizontal split rings for quick and easy mounting
GUARANTEED: All Crimson Trace Scopes are covered under a Full Lifetime Warranty. For questions or warranty contact us at support@crimsontrace.com
CSA-1309 Riflescope
In 1994, Crimson Trace developed and sold its first laser sight – an internal system for GLOCK pistols, known as the GLS. Two years later, the newly patented, user-installed Lasergrips product line was unveiled at the 1996 SHOT Show. Over the years, the engineers at CTC have been dedicated to constant improvement and the evolution of products. As we approach our 25th year, Crimson Trace is pleased to add electronic sights, precision riflescopes and sporting riflescopes to our collection.
Products to Elevate Your Confidence in Moments That Matter
The Crimson Trace CSA-1309 1-Series Sport Riflescope is a feature-rich 3-9x40mm mid-range riflescope that has been purposefully build from the ground up. The scope’s Second Focal Plane Duplex Reticle and impressive glass makes for an uparalleled shooting experience.
Magnification: 3-9x
Objective Lens Diameter: 40mm
Second Focal Plane (2FP)
Non-illuminated Traditional Duplex MOA Reticle
Multi-Coated Lenses
Includes rings for mounting
Features
Micro Adjustments
Diopter is easy to adjust and can make all the difference in clarity
Windage and Elevation
Caps twist off exposing the adjustment slot for zeroing in your rifle
Magnification Ring
Zoom from 3-9 immediately to get on target with ease
About the Crimson Trace Manufacturer
Crimson Trace is a premium supplier for firearm scopes, optics, mounts, and other accessories used for firearms like rifles and long guns. They create and build their mounts and related products using building materials which are long lasting and resilient. This includes the Crimson Trace 3-9x40mm 1 Series Mid-Range Sport Riflescope with SFP, Duplex Reticle and Scope Rings for Hunting, Shooting and Outdoor by Crimson Trace. For more shooting products, visit their website.
Rifle Glass Details
Rifle scopes allow you to precisely aim a rifle at different targets by lining up your eye with the target over a distance. They do this through magnification by employing a set of lenses inside the scope. The scope’s positioning can be dialed in to account for separate environmental considerations like wind speed and elevation increases to account for bullet drop.
The scope’s purpose is to help the shooter understand exactly where the bullet will land based on the sight picture you are seeing via the optic as you line up the scope’s crosshair or reticle with the target. A lot of contemporary rifle scopes have around eleven parts which are arranged inside and outside of the scope. These optic pieces include the rifle scope’s body, lenses, adjustment dials or turrets, focus rings, and other parts. Learn about the eleven parts of glass.
Rifle Optic Types
Rifle scopes can be either “first focal plane” or “second focal plane” type of scopes. Going for the optimal type of rifle optic is based around what type of shooting you plan to do.
About First Focal Plane Glass
Focal plane scopes (FFP) feature the reticle in front of the magnification lens. These types of scopes are beneficial for:
- Quick acquisition, far away kinds of shooting
- Shooting situations where computations are very little
- Experienced shooters who understand their aim point “hold over” plus “lead” relationships for their long gun
- Shooters who don’t mind the reticle is enlarged and occupies more visual eyesight space than a SFP reticle
About Second Focal Plane Scopes
Second focal plane scopes (SFP) include the reticle behind the magnification lens. This induces the reticle to remain at the exact same overall size relative to the quantity of zoom being used. The outcome is that the reticle dimensions change based upon the magnification chosen to shoot over lengthier ranges considering the reticle measurements represent distinct increments which differ with the magnification. In the FFP illustration with the SFP glass, the 5x “zoom” 100 yard tick measurement would be 1/5th of the non “zoom” tick. These particular sorts of optics are beneficial for:
- Long distance types of shooting where shooters have more time to make ballistic calculations
- Shooting where most shots happen within shorter ranges and distances
- Shooters who like a clearer optic picture without area taken up by the larger size FFP reticle
Zoom for Rifle Glass
The extent of scope zoom you need on your scope is based on the type of shooting you desire to do. Practically every type of rifle optic provides some degree of magnification. The level of zoom a scope gives is established by the size, thickness, and curves of the lenses within the rifle scope. The zoom of the optic is the “power” of the scope. This signifies what the shooter is checking out through the scope is magnified times the power aspect of what can typically be seen by human eyes.
About Single Power Lens Glass
A single power rifle scope and optic uses a magnification number designator like 4×32. This means the magnification power of the scope is 4x power and the objective lens is 32mm. The zoom of this kind of optic can not change because it is a fixed power optic.
Variable Power Lens Scopes
Variable power rifle scopes use variable power levels. The power change is achieved by making use of the power ring part of the scope near the back of the scope by the eye bell.
Rifle Scope Power and Range Correlation
Here are some recommended scope powers and the ranges where they can be successfully used. Always remember that higher magnification optics and scopes will not be as effective as lower powered optics and scopes due to the fact that excessive magnification can be a negative thing in certain situations. The exact same concept goes for extended distances where the shooter needs to have adequate power to see where to properly aim the rifle.
About Lens Coverings
All modern-day rifle optic and scope lenses are covered in special coatings. There are various types and qualities of glass coverings. Lens finishing is an essential aspect of a rifle’s setup when thinking of high end rifle optics and targeting units. The lenses are one of the most crucial pieces of the optic due to the fact that they are what your eye sees through while sighting a rifle in on the target. The finish on the lenses offers protection to the lens exterior and even improves anti glare capabilities from excess sunshine and color discernibility.
HD Versus ED Lens Coatings
Some rifle scope suppliers will also use “HD” or high-definition glass coatings which use different procedures, rare earth compounds, polarizations, and components to enhance numerous color ranges and viewable definition through lenses. This high-definition finishing is often used with more costly, high density glass which decreases light’s capability to refract by means of the lens glass. Some scope suppliers use “HD” to refer to “ED” suggesting extra-low dispersion glass. ED handles how certain colors are represented on the chromatic spectrum and the chromatic difference or aberration which is also called color distortion or fringing. Chromatic aberration is often visible around things with well defined outlines as light hits the item from certain angles.
Single Covering Versus Multi-Coating for Optics
Various optic lenses can also have various coverings applied to them. All lenses generally 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 offer protection to the lens from scratches while decreasing glare and other less helpful things experienced in the shooting environment while sighting in with the scope. The quality of a single coated lens depends on the scope maker and how much you paid for it.
Some scope producers similarly make it a point to define if their optic lenses are coated or “multi” coated. Being “much better” depends on the maker’s lens treatment innovation and the quality of materials used in constructing the rifle scope.
Hydrophobic Rifle Optic Lens Finish
Water on a lens does not help with maintaining a clear sight picture through a scope at all. Lots of top of the line and military grade optic companies will coat their lenses with a hydrophobic or hydrophilic anti-water coating.
Options for Mounting Scopes on Firearms
Installing options for scopes come in a couple of choices. There are the basic scope rings which are separately mounted to the optic and one-piece mounts which cradle the scope. These different kinds of mounts also generally are made in quick release variations which use throw levers which permit rifle shooters to rapidly mount and remove the optics.
Hex Key Rifle Scope Rings
Basic, clamp style mounting optic rings use hex head screws to position to the flattop style Picatinny scope mounting rails on rifles. These styles of scope mounts use two independent rings to support the scope, and are usually constructed from 7075 T6 billet aluminum which are developed for far away precision shooting. This type of scope mount is very good for rifle systems which need a long lasting, unfailing mount which will not change despite how much the scope is moved or abuse the rifle takes. These are the design of mounts you want for a devoted scope setup on a far away hunting or competition rifle that will pretty much never need to be altered or recalibrated. Blue 242 Loctite threadlocker can also be used on the scope mount’s screws to keep the hex screw threads from wiggling out after they are installed firmly in place. An example of these mounting rings are the 30mm type made by Vortex Optics. The set usually costs around $200 USD
Quick-Release Cantilever Scope Rings
These types of quick-release rifle scope mounts can be used to quickly remove a scope from a rifle and reattach it to a different rifle. If they all use a similar style mount, multiple scopes can often be swapped on the range. The quick detach design is CNC machined from anodized 6061 T6 aluminum and the mounting levers attach firmly to a flat top style Picatinny rail. This allows the scope to be sighted in while on the rifle, taken off of the rifle, and remounted back on the rifle while retaining accuracy. These kinds of mounts are useful and convenient for rifles which are moved a lot, to remove the scope glass from the rifle for protection, or for optics which are chosen for use between multiple rifles. An example of this mount type is the 30mm mount designed by the Vortex Optics manufacturer. It generally costs around $250 USD
What to Know About Optic Tube Sealing and Gas Purging
Wetness inside your rifle glass can mess up a day on the range and your costly optic by triggering fogging and developing residue within the scope’s tube. The majority of scopes prevent humidity from going into the scope tube with a system of sealing O-rings which are waterproof. Generally, these optics can be immersed beneath 20 or 30 feet of water before the water pressure can push moisture past the O-rings. This should be sufficient humidity prevention for standard use rifles, unless you anticipate taking your rifle aboard watercrafts and are concerned about the scope still performing if it goes over the side and you can still salvage the rifle.
Glass Gas Purging
Another part of avoiding the accumulation of wetness inside of the rifle optic’s tube is filling the tube with a gas like nitrogen. Given that this area is currently occupied by the gas, the optic is less altered by climate shifts and pressure distinctions from the outside environment which could potentially enable water vapor to permeate in around the seals to fill the void which would otherwise be there. These are good qualities of a decent rifle scope to look for.
