Vortex Strike Eagle vs Primary Arms 1-6 

 September 1, 2020

By  Anton Scharff

Vortex optics is as popular as ever, facing a lot of competition from the similar fabricators, among them being the Primary Arms. This is a premier and reliable manufacturer and offers the same superior, low-cost and high-quality products, which compete head-on with the Vortex optics in the same category. Their product includes the strike eagle one 6x.

This comparative guide, we will see the difference between Primary Arms 1 6 and Vortex 1 6x Scope. Prior to giving you the difference between the two, keep in mind that when choosing, consider where you intend to use it. Are you looking for an advantage in close combat or just a scope for recreational use? If you want to use it for close combat, you must definitely opt for the one intended. Both scopes are remarkable, however Vortex strike eagle seems to be more popular, yet the scope has a higher price than the Primary Arms scope.

Let us see why this product is worth the price.


Vortex Strike Eagle 1-6×24

Vortex Optics Strike Eagle 1-6x24 Second Focal Plane Riflescope - BDC3 Reticle (MOA), Black
  • The updated Strike Eagle 1-6x24 is defined by speed and...
  • The magnification ring has been updated and now includes a...
  • The new illuminated BDC3 reticle focuses the shooter's eye...
  • The fast focus dial on the eyepiece allows for quick and...
  • Nitrogen purged and o-ring sealed the for water and fogproof...

  • Fast focus eyepiece
  • BDC reticle
  • Rugged
  • Durable construction
  • Precise reticle

Primary Arms Gen III 1-6×24

Primary Arms SLX 1-6x24 SFP Rifle Scope Gen III - Illuminated ACSS-5.56/5.45/.308
  • Variable 1-6x magnification second focal plane scope...
  • ACSS reticle combines BDC, wind holds, moving target leads,...
  • Partial red illumination with 11 brightness settings powered...
  • IP67 waterproof and fog resistant with a 6063-aluminum scope...
  • Lifetime warranty for manufacturer defects, materials and...

  • Super lightweight
  • ACSS reticle is easy and quick in close ranges
  • Waterproof

Vortex 1 6 Strike Eagle

  • Magnification: 1 6x24
  • Eye relief: 3.5.”
  • Objective lens diameter: 24mm
  • Field of view: 116.5-19.2
  • Tube size: 30mm
  • Turret style: capped
  • Adjustment Graduation: ½ MOA
  • Max Elevation Adjustment: 140 MOA
  • Max Windage Adjustment: 140 MOA
  • Parallax Setting: 100 Yards
  • Length: 10.5 inches
  • Weight: 17.6 inches

Primary Arms 1 6x

  • Magnification: 1 6x
  • Eye relief: 3.3 to 3.5 mm
  • Objective lens diameter: 24mm
  • Field of view: 110.00 ft – 19.30 ft/100 yards
  • Tube size: 30mm
  • Turret Style: capped
  • Adjustment Graduation: ½ MOA
  • Max Elevation Adjustment: 100 MOA
  • Max Windage Adjustment: 100 MOA
  • Parallax Setting: 100 Yards
  • Length: 10.04 inches
  • Weight: 16.9 inches

Vortex 1 6x Overview 

Vortex provides you a run for your money with this superb riflescope. This is the companies 1-6x magnification AR BDC reticle, which is made to work alongside the 5.56mm caliber cartridges, meaning it is made for AR-15 of all sorts. The Vortex strike eagle 1 6 stands out when it comes to speed and versatility.

This Scope is made of Vortex, so expect to get superior and high-quality multi-coated optics equipped with anti-reflection functionality. State of the art optics come with a second focal plane reticle, which keeps the dimension as well as a scale for calculating assisting in precise range finding, wind drip correction and holdover in all the settings of magnification.

The BDC reticle is marked on the glass and is lighted for low light settings and is lit up by one CR2032 battery.

Vortex Strike Eagle scope has a diameter of 30mm and is made from a piece of aircraft quality aluminium alloy, which is purged with nitrogen to make it fog resistant. It also comes with O-ring seals to guarantee waterproofing.

The rugged and solid construction of this unit makes it have a superbly well-made housing which is shockproof for vibration and heave recoil. It has a standardly anodized matt finish. It has capped turrets, thus re-indexing to zero is fast and quick as possible, and also offer cover as well as protection to the Scope after using.

The field of view, as well as the eye relief, is superb. The groundbreaking Eagle Strike scope offers a fast-focus eyepiece for precise aiming or targeting and correction regardless of the weather conditions.


  • Fully Multi-Coated Scopes
  • Glass-etched
  • Illuminated Reticle
  • Second Focal Plane Reticle
  • Hard-Anodized Aircraft-Grade Aluminum
  • 30 mm
  • diameter Single-Piece Tube
  • Waterproof,
  • Fog proof, as well as Shockproof
  • Fast Focus Eyepiece
  • Capped Reset Turrets


  • Bulky and super heavy Scope available
  • High price
  • The integrated reticle is not as fast as close range

Primary Arms 1 6x Scope Overview

This a focal plane scope that comes with the patented ACSS or Advanced Combined Sighting System reticle. This amazing Scope provides correction adjustments for array estimation, wind holds bullet drop compensation, as well as moving target lead.

This second focal plane reticle is intended to give the same size scaling at magnifications and provides accurate and fast target achievement from zero to 300 yards, as well as a remarkable performance in getting targets from 300 to 800 yards.

The Primary Arms 1 6x scope is made of one-machine tube aluminIum alloy, which is anodized and has a matt finish. It is nitrogen purged to give superb anti-fog features. The tube measures 10.04 inches, and the light-up is powered by one CR2032 battery. What sets this apart from the rest, is the integrated 11 settings for brightness. The lenses, on the other hand, are multi-coated for anti-scratch and anti-glare properties.


  • Finger adjustable
  • Low profile scope
  • Capped turrets
  • Second focal plane
  • 11 brightness settings include
  • Nitrogen purged fog resistant.
  • Fast focus eyepiece
  • Fully multi-coated lenses.
  • This Scope has a lifetime warranty
  • ACSS reticle 6063 aluminum body, which is Type II hard anodized.
  • Water-resistant
  • Powered by a CR2032 battery


  • No specific information about construction materials
  • ACSS reticle is not as accurate at a distance

Comparison Between these Two Scopes 

The best thing about these scopes is that they are similar; in this event, they look very identical. The outer form of the Vortex has white logo, located on the side part of the controls, while the Primary Arm has a dark matte finish. Therefore, when it comes to looks, the Primary Arms scope is a less dull and eye-catching in it's appearance. However, that is as far as it goes for the PA. Primary Arms is 2/3 the price of the Vortex. Therefore it is considerably cheaper. If you want to save money, without compromising the quality, then the Primary Arm is a perfect choice.

One obvious difference is the wind adjustment or elevation adjustments. It is also a bit different in eye relief. Strike Eagle eye relief is similar across the board, so meaning there is no need for you to adjust yourself once you change the zoom. The Primary Arm does not offer this feature, and perhaps you will need to fidget a bit to see the whole thing once you zoom in, even if not enough for it to be a problem.

Also, on the other hand the Strike Eagle has the utmost level of elevation as well as wind adjustment. The Primary Arm also provides users a considerable amount of kindness in this aspect. Some scopes only have 50 MOA wind as well as elevation adjustment, but the other Scope is better suited for long-range or  in more desperate conditions.

Quality of Life 

Both scopes come with a bundle of diverse quality of life features. When it comes to Strike Eagle, it shows in two facts: Strike Eagle turrets provide a bit of faster re-indexing compared to Primary Army. More so, it also provides a Fast Focus Eyepiece that allows shooters to instantly focus the reticle so that they can make a good shoot quicker.

On the flip side, the Primary Arms also comes with many different handy things like the ACSS or Advanced Combined Sighting System reticle that includes bullet drops, target movements, wind, as well as range estimation with ease.

Construction Quality

Both the Primary Arm 1-6 and the Strike Eagle is made to last for many years. This is evident in the way they are made. Raining, sunshine, swamps, or plain, there is no need to worry about humidity or water harming the scope a lot. This is due to the fact that these scopes are waterproof. Both scopes are extremely fog-proofed to ensure that the gases inside are stable as well as out of the user’s way, in spite of the condition of the weather outside.

The Strike Eagle is made to stand up a a bit more, with shock proofing feature made to keep the recoil as well as unexpected movement or damage from destroying the internal parts of the unit. This is only one step that the Strike Eagle takes to make sure of a long life.

The Strike Eagle provides a very tough aircraft-grade aluminum body that has an anodized matte finish that works to lessen glare. This keeps the eyes of the user comfortable while hunting. This is built to be tough as well as stand up to bumps, bruises, and drops, which may take place over the course of its life.


Both the Strike Eagle and the Primary Arm 1-6 have the same sizes, length, tube size, and weight as well as lens diameter. There is no need to worry about other scopes weighing you down. The two scopes are relatively low profile, however, filled with power.

Optical Comparison

Whether you opt to Primary Arm or Strike Eagle, both provide a remarkable optical experience. Each Scope provides six different zoom levels. State of the art Strike Eagle has a bit high range of vision between the lowest and highest settings compared to other scopes available on the market. Both have lighted up reticle to assists shooter hit precisely on target, each time.

Strike eagle also comes with an etched glass reticle, which allows an extremely intricate style. Both scopes have multi-coated lenses, making sure you get enough light through your eye and lens as well. Thus, it is easier for you to find and hit the target. The lenses of

Strike Eagle is rugged, to avoid scratches and scuffs.

Weight and Size 

State of the art Strike Eagle is a bit heavier and longer. It is 0.1mm long and 1.5oz in weight. This weight goes into the shock proofing system, so you get a bit heavier Scope in respect to overall shock performance to constant recoil, tactical conditions as well as recoil the Strike Eagles outweigh the Primary Arms.


 Strike Eagle has an AR-BDC reticle, so meaning it is intended for tactical support, distance shots, and close contact. The Primary Arms has ACSS, which is ideal for fast targeting acquisition as well as close combat, long-distance performance is underwhelming if compare to Strike Eagle. Primary

Arms Gen III recticle now offers an estimation of range; wind holds, bullet drop compensation, as well as moving target lead.


Both scopes make use of a CR2031 battery, Strike Eagle has a 150 hours lifetime capacity. Therefore, it is a tie when it comes to this feature.

Lens Coating

Both scopes come with a multi-coated lens. However, there’s not much paperwork on the Primary Arms, in which Vortex goes into details concerning its multi-coating anti-reflection features. This is proven again and again in the field. A lot of users don’t experience any problem with PA coating. The company doesn’t just elaborate more about the system or technology of their optics.

Objective Lens Diameter

Both Scope have a similar 24 mm objective lens size. However, the superiority of the Strike Eagle outweighs the Primary Arms, and both have 30mm tubes.

Therefore, clarity of vision and testing brightness is easy, and Vortex Strike Eagle 1 out in this aspect compared to Primary Arms.

Conclusions: Vortec StrikeEagle vs. Primary Arms 1 6x24

While both manufacturers make superb scopes, the Primary Arms 1 x 6x doesn’t yet compete with Vortex. This Scope is almost perfect for any AR use, from tactical application to tactical shooting. It is precise, solid as well as easy to use. The Primary Arms 1 6x has improved and enhanced its functionality and now have a better target for acquiring the technology. In general, the main disparity between the two is the price. The Primary Arms 1 6x24 is three times cheaper than the Vortex. On the other hand, if you are searching for a powerful and tougher scope that has remarkable performance, then consider buying the Vortex. It offers smoother performance that is able to survive heavier recoil. It is difficult to pick the best one. If you desire to save money, then Primary Arms 1 6x24 is a perfect choice. If you are heading into the war zone, then choose the Vortex, but if you are just planning to hunting, Primary Arms 1 6x24 will give you amazing performance without spending a lot of money.

The savings you can get from buying the Primary Arms can be used to purchase more accessories or equipment for your trips, and if you think about that you have two to four guns suited for diverse purposes. Each cent you save on same quality items really matters a lot. Vortex Strike Eagle 1 8 is also a good choice if you find that the two don't suit your needs.

Anton Scharff

Anton is a hunting expert who respects nature. Ask him anything about large game. Lover of the great outdoors.

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