Best Red Dot Sight For AR 15 With Fixed Front Sight 2021

Although guns and rifles are no toys, everyone loves playing with one!

The bigger your gun is, the more confident you feel. But of course, you need to follow a fair set of legal rules to make a purchase.

For those into aiming and shooting, an AR-15 is definitely a model you must have heard of!

This rifle is all about amazing, heavy-duty construction with great performance that gives you just the right amount of satisfaction.

Best Red Dot Sight For AR 15 With Fixed Front Sight

But sometimes you tend to miss out on your aim because of blurred vision or longer distance for which you might need to add extra equipment to your AR-15. What are we talking about?

We are here to present to you the best red dot sight for AR 15 with fixed front sight. It is compact equipment that easily fixes over your rifle to enhance vision.

Want to know more about the product? Take a look at the list below!

Comparing 10 Best Red Dot Sight for AR 15 with Fixed Front Sight

Red Dot SightLong Battery LifeLifetime WarrantyBright Vision 
Aimpoint PRO 12841YesYesNo Check Price
EOTECH XPS2YesYesNo Check Price
Sig Sauer Romeo5YesYesYes Check Price
Holosun HS510CYesNoYes Check Price
Vortex Strikefire IIYesYesNo Check Price
Bushnell TRS-25NoYesNo Check Price
Vortex SPARC IINoYesNo Check Price
Trijicon MROYesYesNo Check Price
AT3 LEOSYesNoYes Check Price
Sightmark R-SpecNoYesYes Check Price

Although the AR-15 lets you aim and shoot with great precision, at times, people tend to miss out on their target because of blurred vision.

If the distance between you and the target is more, you need a red dot sight for the AR-15 that improves your vision ten times, letting you aim and shoot without hesitation.

If you’re interested to know more, let’s read on!

1. Aimpoint PRO 12841 Red Dot Reflex Sight

Aimpoint PRO 12841

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On top, we have the Aimpoint PRO red dot sight which is designed with high-quality materials and is budget-friendly.

This sight is equipped with a number of unique features that provide the user with a precise shooting point. Even the user feels at ease when aiming through this reflex sight.

You can use four-place reticles with this reflex sight, which is quite beneficial for the shooter to have an accurate target.

Not only that, but it also offers excellent optic comfort that most shooters love about it.

This excellent reflex sight features a dependable locking collection screw with user sighting adjustment stabilization.

It’s made of aircraft-grade aluminum and has an ergonomic nature, so you have a wide range of options to save space on the rail.

Another excellent feature of the Aimpoint PRO red dot sight is that it has the most reliable and long-lasting battery life on the list.

As a result, this sight is gaining acceptance among all amateur users, especially among shooters.

This reflex sight analysis would be a better companion for you to find a suitable reflex sight.

Pros
  • Comes with lifetime warranty
  • Has unlimited eye relief
  • This scope can withstand shocks and shakes
Cons
  • It is quite heavy
Aimpoint PRO Red Dot Reflex Sight with QRP2 Mount and Spacer - 2...
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Aimpoint PRO Red Dot Reflex Sight with QRP2 Mount and Spacer - 2...
  • Designed to deliver premium performance under harsh conditions
  • 2 MOA dot with 10 brightness settings
  • Up to 3 years of continuous operation using one DL1/3N battery...

2. EOTECH XPS2 Holographic Weapon Sight

EOTECH XPS2

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If you are seriously looking for high-quality optics with a good budget, then this EOTech XPS2 holographic weapon sight is perfect to fulfill your requirements.

This is a great value and choice if you are in search of the best reflex sight for AR-15. Alongside Aimpoint, the EOTech people were the ones who first brought red dot optics to life.

These two firms invented the technology that we use today and are still at the forefront of the industry when it comes to launching cutting-edge technology.

The EOTech sight is one of their top-of-the-line holographic sights, with a great price-to-performance ratio.

It’s more of a hybrid sight and comes with a higher cost to match, but if you’re looking for deadly accuracy when it counts, nothing beats this setup.

This reflex sight is all about precision and speed – all credit goes to the laser light technology that illuminates the holographic red reticle.

Using this technology, you will never have to worry about your sights being misaligned again.

Moreover, it is designed for serious operators and LEOs who need to rely on their optics in any situation. Not only that, but it also performs quite well in three-gun setups.

The sight window, when paired with the holo reticle, allows you to monitor shooting conditions and accuracy in ways that would otherwise be impossible.

It is a reflex sight on steroids and light-years beyond iron sight abilities.

Another great advantage of this reflex sight is that you can depend on this sight system regardless of the lighting situation.

Low lighting, weather, fog, or wind will never affect your ability to acquire a target and accurately fire on it – thanks to the holographic projection of the reticle (battery-powered, of course).

Pros
  • One of the best reflex slights available
  • Comes with 20 brightness settings that improve your vision in low light
  • Operates on two AA batteries
  • Provides a near parallax-free experience to its users
Cons
  • None so far
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EOTECH Holographic Weapon Sight, Ring with Single Red Dot...
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EOTECH Holographic Weapon Sight, Ring with Single Red Dot...
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  • Adjustable Brightness: The XPS2 has 20 brightness settings for use in...

3. Sig Sauer SOR52001 Romeo5 Red Dot Sight

Sig Sauer Romeo5

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On third, we have the Sig Sauer Romeo5, which is quite affordable compared to other optics on the list.

The product has motion-activated illumination technology, meaning that when it detects movement or vibration, the sight can “wake up” and switch on automatically.

If no movement or sound is detected for 15 minutes, the sight will turn off. Even if you forget to turn it off, you don’t have to worry about dead batteries as they are long-lasting.

Talking more about its batteries, they have a 50,000 hours life. Apart from that, the 2 MOA dot is used for accurate shooting and comes with 8 daylight brightness and 2-night vision settings.

Since it is water-resistant, you don’t need to worry about that. It can also be submerged up to 1 meter and is built to last with both magnifiers and night vision devices.

Pros
  • One of the cheapest reflex sights available on the market
  • This scope is perfect for a home defense situation
  • Its optic is turned on when a movement or vibration is detected
Cons
  • Small in size, so there is no massive objective lens
Sig Sauer SOR52001 Romeo5 1x20mm Compact 2 Moa Red Dot Sight,...
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  • 2 MOA Red-Dot provides 10 illumination settings (8 daylight plus 2 NV)...
  • MOTAC (Motion Activated Illumination) powers up when it senses motion...
  • Integrated M1913 Picatinny interface provides industry-standard...

4. Holosun HS510C Solar Power Holographic Red Dot Sight

Holosun HS510C

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This Holosun HS510C reflex sight is worth an investment as it has the NextGen LED technology (which allows this sight to operate for up to 50,000 hours on a single battery).

Holosun is one of the most trusted and well-known brands in the market today and it still searching for new ways to bring these weapon accessories further into the future.

Not only that, the Holosun is one of the few brands that use the LED technology in reflex lights. This is the next iteration of optics that most of us are familiar with.

With this reflex sight’s 2 MOA dot (inside a 65 MOA ring), you’ll be able to hot-swap different reticles on the fly.

There aren’t many other options that have this capability, and none at this price point, so the Holosun stands out from the crowd.

This is a top-tier reflex sight setup rig that will not rob your bank account. It offers an infinite field of view and near-zero parallax, and a polished titanium alloy frame that cannot be destroyed.

Pros
  • Has LED technology used which is efficient and bright
  • Provides high-quality materials at reasonable price
  • Has flexible and smooth QD mounting system
Cons
  • Takes time to “zero” it
HOLOSUN - HS510C Reflex Red Dot Sight for Longer Barrels (2 MOA...
2,666 Reviews
HOLOSUN - HS510C Reflex Red Dot Sight for Longer Barrels (2 MOA...
  • The Holosun HS510C New advanced technology LED allows up to 50,000...
  • 2 MOA dot and a 65 MOA ring, Dot only, Ring only, or Dot and Ring...
  • Unlimited field of view, Titanium-alloyed, shock resistant hood

5. Vortex Optics Strikefire II Red Dot Sight

Vortex Optics Strikefire II

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Durability, precision, and accuracy are the things that describe this company.

It has a battery-powered reflex setup featuring a 3 MOA red dot sight (with 1 MOA adjustment gradient capabilities) that allows you to quickly attain a sight picture and shoot round after round of exact shots.

The Vortex Optics Strikefire II is made of machined aluminum and has the ability to resist any rattle, shake, and roll.

It is designed with aircraft-grade materials to withstand the intense recoil of large caliber shotguns and handguns, but it will also feel right at home on your AR.

It has quite a special reflex sight – it comes with a multi-coated lens which cannot be splintered or scratched even when subjected to less-than-white-glove handling.

This optics solution will not gas up, fog, or blur out on you, no matter what shooting conditions you’re in. You can also use a cheek rest for comfortable shooting.

Not only that, the Vortex Strikefire II offers 10 different levels of brightness from a battery that can last between 150 hours (at the brightest setting) and 30,000 hours (at the lowest setting).

Moreover, if the battery dies, you don’t have to spend a lot of money to get a new one.

Pros
  • It has an excellent battery life that cranks up the reticle sensitivity whenever you needed
  • It offers easy to use elevation controls and flush windage
  • The scope has the tendency to withstand any recoil short of a nuclear blast
Cons
  • It is expensive
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Vortex Optics Strikefire II Red Dot Sight - 4 MOA Red/Green...
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Vortex Optics Strikefire II Red Dot Sight - 4 MOA Red/Green...
  • The Strikefire II Red/Green Dot is a rugged, reliable red dot sight...
  • Fully multi-coated lenses provide a clean and bright, unobscured point...
  • The single-piece chasis is compact and lightweight but still delivers...

6. Bushnell TRS-25 Red Dot Sight

Bushnell TRS-25

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Next on our list is the Bushnell TRS-25 red dot sight. You can mount this reflex sight with most firearms and it can perform in large targeting areas.

Many shooters rely on it nowadays as it usually allows for quicker target acquisition.

This reflex sight assures safety and stability to its users. Not only that, but it also allows around four different reticle shapes combined with this under 200 reflex sight.

It offers a distinctive field of view scope than most brands. The strength of its reticle stands out to the shooter, which is why it is quickly becoming a favorite sight amongst shooters.

It is necessary to state that the mounting system of this reflex sight is admirable. Rather than having anything to gain, there is little to lose by using this sight.

This incredible reflex sight is available at an affordable price, allowing the user to get limitless eye relief, shockproof and waterproof functionality, parallax corrected functionality, and more.

Apart from that, you don’t need to worry about its longevity or dependability because is dedicated to providing long-term battery support.

All in all, it is a great choice to make for a convenient and reliable reflex sight experience.

Pros
  • Offers unlimited eye relief
  • Has auto adjustment mode that gives better control
  • Shockproof and waterproof
Cons
  • Does not turn off automatically
  • Not great brightness outdoors
Bushnell Trophy TRS-25 Red Dot Sight Riflescope, 1x20mm, Black
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Bushnell Trophy TRS-25 Red Dot Sight Riflescope, 1x20mm, Black
  • Matte black featuring a 3 MOA Dot reticle with 11 brightness settings;...
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7. Vortex Optics SPARC II Red Dot Sight

Vortex Optics SPARC II

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You may think that we have run out of the reflex sights, which is why we are using different products of the same brand. Well, this is not the reason.

It is because Vortex has another amazing reflex sight that we couldn’t resist adding to the list. It is a great choice for those who want to use a reflex sight in a pistol.

You will find all of the hallmarks of this optics business here for about the same price as the Vortex sight above.

It provides mounting options for the majority of common handguns, as well as a “universal adapter” for Weaver and Picatinny rail systems.

The choice to have this sight milled for your firearm specifically, essentially hard mounting it to the slide of your weapon for a semi-permanent fit that all but guarantees enhanced accuracy and stability is exclusive to the RMR Type 2 system.

Pros
  • Particularly made for sidearm and pistols
  • Offers high-end reflex sight
  • Comes with electronic technology for better sight and run time
Cons
  • The auto-off is useless as complained by a few customers
  • Poor battery life
Sale
Vortex Optics SPARC Red Dot Sight Gen II - 2 MOA Dot , BLACK
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Vortex Optics SPARC Red Dot Sight Gen II - 2 MOA Dot , BLACK
  • The updated SPARC features rugged construction that’s still compact,...
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  • Increased light transmission with multiple anti-reflective coatings on...

8. Trijicon MRO Red Dot Sight

Trijicon MRO Red Dot Sight

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Are you looking for a reliable and durable reflex sight for your pistol? Well, the Trijicon MRO red dot sight can be the one for you.

The brand has had one goal since its inception in 1981: to manufacture the best firearm optics that they can buy without caring about money.

Trijicon sights have become synonymous with high quality, assisting law enforcement and military personnel all over the world (including providing some of the world’s most elite Special Forces).

When you pay the money for these amazing reflex sights, you know exactly what you’re getting.

This sight’s unique design allows it to change its brightness level in response to lighting conditions, ensuring that warfighters can still see what they’re shooting at, no matter what.

You can also change the brightness settings on the fly with push-button overrides, which allow you to cycle through 8 different levels without taking your hands off the weapon.

This unit’s housing is also a little different. It can either be mounted directly to a firearm (with multiple mounting rails/brackets available) or attached to more conventional optics.

You can quickly move from one sight to another, allowing you to engage long-range targets with an ACOG or mid/long-range collection of glass while firing on close-range targets with your reflex sight.

Although the price is higher than most, you really get what you pay for with Trijicon. This is a setup that you should invest in for the rest of your life.

Pros
  • You can mount this on extra optics or weapon for enhanced flexibility
  • The scope provides the most accurate reflex sight to its users
  • Comes with instant automatic brightness settings
Cons
  • It will cost you a fortune
Trijicon Mro (Miniature Rifle Optic) 1x25 Mro 2.0 MOA Adj Red...
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9. AT3 LEOS Red Dot Sight with Integrated Laser and Riser

AT3 LEOS Red Dot Sight

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The AT3 LEOS reflex sight is known for being reliable and cost-effective. You can mount it on shotguns, AR15s, and rifles without too much hassle.

Not only that, its sight would cycle through hundreds of.223 rounds without losing zero, as well as slugs from a shotgun.

It includes a 45-degree mount (Weaver/Picatinny Rail), so you can mount it on a firearm that already has a scope.

Also, it has the capability to work with iron sights – it is an excellent feature only if you want something like this.

The brand has the sight zeros quickly and maintains its atmosphere. However, when you mount it on heavier caliber weapons, you will notice problems.

But it is not the product’s fault as it is not designed to fulfill this requirement.

It does not come with any magnification, but three LR44 button cell batteries are required to operate the sight.

Not only that, its battery has a notable lifespan, and an extra set is included, adding to the overall benefit of this low-cost reflex sight.

It is a fog-proof and water-proof reflex sight, which is backed by a lifetime warranty. Saying that there aren’t many other reflex sights that can match this level of value wouldn’t be wrong.

Pros
  • Long battery life
  • Fog proof and water proof
  • Has 45-degree offset mount
  • Lifetime warranty
Cons
  • Not quite bright outdoors
  • Has small buttons which makes users uncomfortable while operating it
AT3 LEOS Red Dot Sight with Integrated Laser & Riser - 2 MOA Red...
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10. Sightmark Ultra Shot R-Spec Reflex Sight

Sightmark R-Spec

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Lastly, we have the Sightmark R-spec reflex sight. This brand is giving a tough competition to high-end brands, such as Trijicon and Eotech.

So, if you are someone looking for high-quality holographic performance, this could be a potential contender.

It is made of premium quality magnesium alloy and 6061 T6 aluminum, making it a lightweight and well-balanced addition to your rifle collection.

Not only that, but it also provides excellent durability and IP68 waterproofing to secure those sweet optics within.

When it comes to optics, you’ll get optical clarity that was previously only available in units with far higher costs.

Moreover, the optics are completely multi-coated to provide both anti-glare effects and damage resistance.

It also has the 65 MOA Circle-Dot reticle hidden inside. If you are a fan of holographic type optics before, you must know about these optics. It’s totally limitless when it comes to eye relief.

Another excellent thing about this product is it has an incredibly large field of view. When used for the first time, you will feel that it is too big and the M-Spec is the largest version.

However, it is not the heaviest one among its variants, it offers an amazing field of view that you are going to love.

The CR123A battery powers this optical machine for up to 2000 hours.

Apart from that, it uses a motion-activated power system, which only activates the reticle when the device detects movement and powers it off to conserve battery life when not in use.

All of it takes place automatically, so you can focus better on other matters.

Pros
  • It provides an incredible field of view
  • The scope has a long-lasting battery life
  • It is infinite for eye relief
Cons
  • The quality needs to be improved
Sightmark Ultra Shot R-Spec Reflex Sight , Black
790 Reviews
Sightmark Ultra Shot R-Spec Reflex Sight , Black
  • Rugged 6061-T6 aluminum body and protective shield
  • Advanced optical coatings, Scratch resistant lens System
  • 4 Red/green reticle options with 10 brightness settings

All You Need to Know About Red Dot Sight

A red dot sight is one of the many types of scopes available for your AR-15.

As per the name, the scope does not typically draw a red dot at its target, but because of a similar shade, it has been named as it is.

The red dot sight uses LED light to emit a dot which is simple and easy to use.

Unlike the other types of scopes including holographic and magnified scopes, you need to train yourself a little more to gain complete control over it and aim.

But this doesn’t just end here! The red dot sight is further broken down into two categories:

  • Tube-style prismatic sights
  • Reflex sights

Where the tube-style prismatic sights are smaller with lesser magnification and fewer lenses, the reflex sights are even smaller in size and can easily be fixed on a small AR too.

Whether you’re a beginner or a pro at handling an AR-15 rifle, a red dot sight can certainly improve your aim/shoot game!

Best Red Dot Sight for AR 15 with Fixed Front Sight Buyer's Guide:

Red Dot Sight For AR 15 With Fixed Front Sight Buying Guide

Practicing makes a man perfect it is said but without the right equipment, gaining perfection is impossible as the wise have said.

Saying this, we wish to excel in your target and shooting field, and thus, we suggest you get your hands on the best red dot for AR-15.

Why do you need one? To aim perfectly, of course! But even if you’re tempted to buy a red dot sight, how do you know which one to buy?

To help clear your confusion, we’ve come up with a buying guide that’ll come in handy when you’re all set to buy the red dot sight for your AR-15.

Size of Scope Tube

This one is important for you to understand! The scope tube size that holds together all the piece and parts of the scope together, thus ensuring everything falls right in place.

The scope tube comes in two different sizes:

  • 30 mm
  • 1 inch

What you need to understand is that the 30 mm scope tube only fits rings and bases that measure up to 30 mm.

Thus; the same goes for the 1-inch scope tube and riffle base.

If you opt for the wrong size, the fitting may come off, and hence, it won’t be of use anymore.

So, when choosing a scope for your rifle, be sure to measure the base and go for the right fit!

Power Ring

Another thing to bear in mind is that there are two types of scopes: one with variable magnification and the other one is with fixed magnification.

The power ring allows you to adjust the magnification, giving you better control over the riffle and a clear view of the target.

On the contrary, a fixed magnification scope does not come with an adjustable power ring.

Hence, if you not looking for adjustable magnification, a red dot sight for AR-15 without a power ring will work just fine for you!

Field of View

Have you ever heard of it? We bet not!

If it is your first time buying a scope, you need to understand that a field of view is the area covering 100 yards from right to left of your view.

FOV is directly proportional to magnification. The higher the magnification is, the lesser will be FOV.

So, depending on the usage of the scope and the riffle, pay extra attention to FOV to ensure you make the right choice.

Budget

Your willingness to spend on the equipment is definitely what influences your decision.

Well, we all know that when it comes to red dot sight, you can find a huge variety ranging from cheaper to expensive one. But of course, the quality differs!

Before you head out straight to a shop selling these beauties, set a budget for yourself. Do not go overboard with it nor stay under the belt.

Once you know how much money you have in the pocket to spend, it’ll be easier to narrow down your options and choose the best one within it.

Quality

When you’re buying equipment like a red dot sight, you certainly need to pay close attention to quality.

Of course, it isn’t every day that you go out and buy something like this.

For purchases that are made once in a while, investing in a good quality red dot sight for your AR-15 is what a wise person will do.

Look for the material used in the making to ensure it lasts over a lifetime!

Compact and Lightweight

If you still don’t know, amongst its types, the AR-15 is highly compact and lightweight. Thus, when you’re using it to aim and shoot, you won’t have difficulty handling it.

Hence, when buying a piece of equipment like red dot sight for the riffle, make sure you go with one that is compact and lightweight because then, you won’t want to put more weight on the riffle with extra accessories than it could handle.

Durable Optics

No matter what purpose you’re using a riffle for, if used regularly over time, the body or performance may deteriorate. Why do we say so?

This is because when shooting, no matter how careful you are, the riffle will face wearing and tearing to a certain degree.

Hence, when choosing a red dot sight for it, go for durable optics that are rugged and strong enough to withstand both minor and major impacts upon shooting.

If you’ll go for a low-quality one, there is a risk of the optics breaking at the impact produced during shooting.

Riffle Scoop

Riffle scoop is the ability to see your target, both distant and near. We’d suggest you go for equipment that gives you a clear view of your target, irrespective of the distance and light.

The higher magnification it will offer, the better you’ll be able to aim!

Weather Resistant

Planning to go hunting with your buds in the cold winters? Well if yes, you want a red dot sight for your rifle that is weather resistant.

Some red dot sights carry a label saying them to be fog proof and waterproof.

Thus, whether it is misty outside or raining cats or dogs, if you have a red dot sight that is weather resistant then there is no stopping you!

Frequently Asked Questions:

Why do I need a red dot sight for AR-15?

Although you might be great at aiming and shooting, for a more precise aim, we’d suggest you add the red dot sight! The red dot sight scope improves your aim by enhancing speed and accuracy.

Moreover, it lets you aim and shoot in low-light and thus, lets you gain better control over your rifle and used it as per need.

Is a red dot sight worth buying?

If you’re looking for more accuracy and control over your AR-15, then yes, this is a great purchase!

Is a scope expensive?

If you’re talking about a red dot sight for your AR-15, you’ll find a huge variety of scope available in the market, ranging from cheaper to expensive ones. Which one you buy completely depends on your budget and willingness to spend.

At what distance should I sight my red dot scope?

We’d suggest setting it at zero at 50 yards for clearer vision and more accuracy.

Can it be used at night?

A red dot sight works great in low light and the dark so you shouldn’t be worried much!

Conclusion:

An AR-15 is an ideal choice for fighters and military personal as it is easy to use, lightweight and powerful.

To improve its accuracy, adding a red dot sight over it certainly takes your aiming and shooting game to a whole new level.

Hence, choose your scope wisely because it isn’t something you’ll be buying every other day!

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