Choosing the Best Scope for AR 15 under $100 – Any Good Options?

3. Pinty Rifle Scope 3-9×32 – A great multifunction tool that can support you in more applications

You cannot really go wrong with Pinty, regardless of what type of scope you want. This model is by far the best scope for AR under $100. You can find more expensive and professional alternatives, but this one brings in some great features that can easily make the difference in this price range.

To some, this is only a scope. To others, it is a multifunction tool. Pinty refers to its scope as a four in one tool – you can use it as a rangefinder too. You can also use the green laser sight for various applications, not to mention the red or green dot sight for a great view over everything you need to see.


  • Magnification power – The scope will provide superior magnification capabilities from 3x to 9x;
  • Illumination and adjustments – The illumination goes in green or red, while brightness can be adjusted over five different levels;
  • Dot sight – The brightness control for the dot sight is unlimited, not to mention the four reticle patterns for it;
  • Functionality – The functionality underlines a red or green dot reflex sight with a bottom switch for perfect accuracy;


  • Multiple uses – The scope can be used with multiple purposes, mostly related to hunting;
  • Eye relief – The eye relief is unlimited, while the image comes with a high resolution and a wide field of view;
  • Easy to mount – You do not have to be an expert to mount this scope to any 22/11 millimeter rail;
  • Durable – The scope has multiple layers of coating, nitrogen filling and O ring sealing for resistance to water and fog;


Confusing – Some of the functionality of this scope may take a while to get used to, while the manual of instructions will come in handy when in need;

Who is it for?

Whether you are a newbie looking for a sophisticated scope that anyone can mount to a rifle or you are an expert interested in a great backup for relaxation shooting, this scope is great for any level of experience.

4. Monstrum 1-4×20 – A quality multifunction tool with lots of flexibility and adjustability

Monstrum’s best scope for AR 15 under $100 is built to impress and last for ages. It weighs 11 ounces – way lighter than most of its competition, so it will not put any pressure on your rifle. Given its lightweight profile, it will not affect the balance of your gun.

Targeting will be a piece of cake. You can use the magnification 1x to 4x. You can aim both close and id range. The objective diameter measures 20mm, while the eye relief ranges between 3.5 and 3.8 inches. Practically, this is the ideal scope if you want something in the middle range that will last.


  • Multiple uses – While designed for aiming, the scope can also be used as a rangefinder with amazing results;
  • Illumination – The illumination is lever controlled and goes in both green and red, as well as multiple levels of brightness;
  • Flexible mount – The package includes an offset cantilever mount, which provides a few inches of extension;
  • Available in more colors – You can purchase the scope in black or flat dark earth, which is a nuance of light gray;


  • Excellent eye relief – The eye relief feature is one of the most useful options, especially during long-lasting hunting trips;
  • Great protection – The lifespan can be improved by the rubberized flip-up lens covers, which keep abrasion and dust away;
  • Value for money – Unsurprisingly for some, this scope provides excellent value for money;
  • Easy to adjust – The magnification lever will make adjustments a breeze;


  • Incomplete manual – The manual of instructions lacks details for newbies;

Who is it for?

Monstrum’s scope is ideal for all kinds of tactical applications. While not necessarily the best option for an expert, it is excellent for beginners and intermediate users who want value for money. When used by a beginner, it works wonders regardless of the application.

5. XopingABC Rifle Scope Combo C4-12x50EG – Excellent value for money and a tool that will work wonders regardless of the user’s experience

This might be the best scope for AR 15 under $100 if you do not feel like spending too much. Moreover, it comes with the must-have features for scope and no room for fancy bells and whistles that only add to the price.

The built-in rail is one of its strongest points. Practically, it will mount to any 22-millimeter rail, but more importantly, you can hook up all kinds of extra accessories on its own rail, whether you want a flashlight or a new laser.


  • Quality build – The scope is shockproof, fog proof and waterproof;
  • Adjustability – The resettable windage and elevation adjustments can be made with your fingertips in 1/4″ increments;
  • Magnification – The magnification ranges between 4x and 12x, so it can aim both short and long-distance;
  • Easy mounting – There is no experience needed to mount this scope, while its own rail makes it excellent for extras;


  • Great views in dark environments – The red and green illumination allows excellent views over five levels;
  • Fast focus – The target is focused before you even realize it;
  • Wide field of view – The field of view is wide because of the tubeless holographic sight with 33-millimeter reflex lens aperture;
  • Integrated rail – The built-in rail leaves room for lots of accessories, but they must be bought separately;


  • No batteries – You have to purchase batteries yourself;

Who is it for?

This scope is suitable for intermediate and advanced hunters, but it also represents a solid upgrade for entry-level amateurs.


The bottom line, choosing the best scope for AR 15 under $100 is a matter of education and a little research. Make sure you know exactly what you are expecting from a scope before starting your homework.

Once you have your needs assessed, it is time to find out what to look for in a scope for your rifle, but also browse the top-rated products on the market. If they work for thousands of people, they are likely to work for you too.

The final decision depends on your expectations and needs. The above-mentioned products are quite general, and they will work for most hunters, regardless of their experience.

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Author: Justin

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Hunting, Outdoors, Scopes