8 Best Types of Scope Mounts: Your Complete Guide

by Tom Moore

March 25, 2022



When it comes to attaching a scope to a rifle, there are many different ways to do it. The type of scope mount you should choose can depend on things like your particular scope, rifle, and the purpose in which you intend to use it.

Therefore, to help you choose the right mount for your scope, we created this guide to not only help you understand all the different types of scope mounts on the market, but also when someone should choose one over another. As you will see, there are some mounts that are actually pretty useless and shouldn’t be used at all in the modern age, whereas there are others that only fit a unique situation.

So, with that said, in this article we’re going to cover:

Once you know which mount you should use, then you can use our Scope Ring Finder to help find the right mount to purchase that will fit with your rifle and scope, and then can use our guide on how to put them all together. Let’s jump in.

What is a Scope Mount

A scope mount is the fixture that attaches a scope to the rifle. Essentially, it can be made up of multiple parts including scope rings and a base mount, or it can be one piece that combines the rings and the base together.

There are typically two parts to a scope mounting system: the scope rings and the rifle base. However, some modern system incorporate both parts into one (we cover these integral mounts below).

Scope Rings

Scope rings are, you guessed it, the ring-shaped part that wraps around the body (middle part) of the scope. The rings must be the correct diameter to fit around your particular scope, the correct height to ensure that your scope can fit on your rifle properly, and also must match the interface of the rifle base in order to properly attach.

For example, if your scope rings are in a Picatinny interface, then your base must also be in a Picatinny interface. Don’t worry, we cover the most common types of interfaces in the next section.

For hunting setups, two individual rings are common. However, in target/tactical setups, rings that are attached into one piece are sometimes used for extra rigidity. These attached rings, sometimes referred to as a one-piece scope mount, are not a necessity but can sometimes be handy.

Rifle Base

The rifle base attaches to the top of your rifle and it is what your scope rings will attach to. Effectively you’re making a sandwich: the bottom is the rifle, the base attaches to the rifle, the scope ring attach to the base, and the scope is held within the rings.

A rifle base is NOT needed in all circumstances. For example, on AR-style rifles, the top of the receiver is most commonly already a Picatinny rail so that Picatinny rings can directly attach. Also, there is a newer trend of integral rings (covered below) which skip the base entirely and mount directly to the top of the rifle.

A rifle base can be in one or two pieces. A one-piece base provides some strength and rigidity for heavy use (you want this for target/tactical rifles) whereas a two-piece base saves weight and allows easier access to the bolt/ejection port of a rifle (especially with gloves) so it is more common in hunting scenarios.

Types of Scope Mounts and When to Choose One

Now that we understand what a scope mount is, and the different pieces, let’s go ahead and check out the different types you’ll find on the market, and when you should choose one over another.

We’re going to cover:

  • Cross Slot Mounts – a category or mounts that includes Weaver and Picatinny
  • Weaver Mounts – a popular interface for hunting rifles
  • Picatinny Mounts – the best interface for target/tactical rifles
  • Integral Mounts – our favorite interface for hunting rifles
  • Dovetail Mounts – a unique/rare interface. Useful for rifle with a built-in dovetail rail and rimfire rifles.
  • STD Mounts – an older interface that is rarely used anymore. Only select this style if you’re trying to match an older component.
  • QR Mounts – an obscure interface for safari rifles. Only select this style if you’re trying to match an older component.
  • Dual Dovetail Mounts – an older interface that is rarely used anymore. Only select this style if you’re trying to match an older component.

CHEAT SHEET: If you don’t want to read about each interface for mounting your scope and would rather just cut to which you should use, here you go:

  • Target or Tactical rifle – use Picatinny
  • Hunting rifle – use Integral
  • Rimfire or Plinking rifle – Dovetail or Weaver works

Cross Slot Mounts

Cross Slot mounts are a ‘family’ or style of scope mounting interface and are likely the most common type of mount you’re going to encounter.

A cross slot mount uses a base, either one or two piece, with “ears” on each side for rings to clamp on to and slots cut side-to-side in various positions.

These “cross slots” are where the rings will attach. They allow the cross-bolt of the ring to sit into the slot and provide extra strength to keep the ring from sliding front or back.

Unfortunately, because “cross-slot” is a broader family/style of mount, you can not simply use any cross-slot ring with another cross-slot style base. This is because there are different dimensions of base widths and cross-slot widths and depths depending on the manufacturer.

The two most common style of cross-slot style mounts are Picatinny scope mounts and Weaver scope mounts (both are covered next) and each have their own particular dimensions. There are some rings that will fit on both a Picatinny and a Weaver rail, however, they are uncommon. And, if you want the best fit, we recommend using the same format of rings and rail and avoid “universal” cross-slot options.

Picatinny rings and bases are most commonly used in target/tactical rifles and can be known for their precision and strength. However, don’t be fooled here. A quality Picatinny rail and rings (usually over $100 for each part) can provide precision and strength. There are plenty of cheaper options out there that might happen to be made to Picatinny dimensions and may fit your budget – but they don’t guarantee.

Weaver ring and bases have their own unique dimensions and are usually less expensive than Picatinny options and are most commonly used for hunting rifles.

We cover both of these cross-slot systems below.

When to Use a Cross Slot Mount:
If you’re looking for a simple and secure method to mount your scope, you’re likely to use a cross-slot system. This system makes it easy to mount a scope and move/adjust it later if needed. Target/tactical rifles owners should look for Picatinny whereas hunters should look for Weaver.

Weaver Mount

The Weaver mount is a type of cross slot mount (covered above) with specific dimensions to the width of the rail and also the cross-cut slots/grooves in the base.

The side to side slots are where the rings may attach by clamping onto the sides of the rail. There is a bolt on the bottom side of the rings which allows for the rings to clamp onto the rail – this bolt sits within the slots and is thereby securely held from sliding forwards or backwards.

Weaver bases can be either one or two-piece bases and can have slots evenly cut throughout the length of the rail or just one or two slots in the front and back for ring mounting.

Weaver mounts provide a strong and repeatable mounting system. These mounts make it easier to position your scope where needed, securely hold it in place, and allow you to easily remove and remount the scope if needed.

When to Use a Weaver Mount:
If you want a cross-slot system for your hunting rifle, consider Weaver mounts over Picatinny as they are usually lighter weight and less expensive.

Picatinny Mount

The Picatinny interface is a type of cross slot mount (covered above) similar to the Weaver interface (also above) with specific dimensions to the width of the rail and also the cross-cut slots/grooves in the base. The Picatinny interface is standard for military-style applications.

For example, flat-top AR-15-style rifles have a Picatinny rail on top.

When it comes to precision rifles for long range shooting, military style rifles, or any application where repeatable durability is required, you’ll find Picatinny mounts.

As we mentioned above, however, be careful. Just because the strongest and best mounts are Picatinny interface, that does not mean that all Picatinny mounts are strong or precise. Instead, Picatinny is simply specific dimensions – it is not guarantee of the quality of the product.

As a general rule, professional-level Picatinny rails cost around $100 dollars and rings cost at least $150. Less expensive will work depending on the application, however, keep this in mind if you’re looking for precision and robustness.

Typically you’ll find that Picatinny accessories will fit on a Weaver rail but that doesn’t necessarily mean you should do that. Just because something can fit doesn’t mean that it’ll fit well.

When to Use a Picatinny Interface:
If you’re mounting a scope on a target or tactical rifle or you want to ensure the most strength and consistency in the mounting platform, choose the Picatinny interface.

Integral Mount

The integral interface is the newest and it removes the need for a base.

Instead of other scope rings being made with a particular mounting interface to match a rail and then the rail being designed to match the rifle, integral rings are made to mount directly to the rifle.

This is more difficult for manufacturers to make because the rings not only need to be a certain diameter and height, they also need to have the right shape and hole spacing to mount to a particular make and model of rifle.

You MUST ensure that you are getting the correct rings for your scope AND rifle with the integral system.

For other platforms, as long as the rings fit your scope and the base fit your rifle (and the rings and base are of the same interface), then they will work.

Integral rings are ideal for hunting rifles because they are lighter weight, simpler, and stronger. The last thing you want to do is add more weight to your hunting rifle, more complication (more things to fail/go wrong), or something that isn’t the strongest it can reasonably be.

When to Use a Integral Mount:
If you are mounting a scope to a hunting rifle, we strongly recommend integral rings.

Dovetail Mount

A dovetail scope mount interface is a very simple system that is similar to the cross-slots interface above, however, there are no cross-slots. Instead, the rings simply pinch/squeeze along both sides of the rail to be held in place.

Dovetail rails are popular as a factory option on some rifles. For example Tikka bolt action rifles can accept a rifle base of any interface listed here and they also have a dovetail rail machined into the receiver so that dovetail rings can be used without the need for a base.

Dovetail systems are also popular on rimfire rifles where a lot of strength is not needed. To make up for the lack of strength, a benefit of the dovetail interface is that the rings can be mounted anywhere along the rail.

One of the most common dovetail sizes is 11mm and 3/8″. Some other less known, but currently commercially available dovetail mounts, are 12, 13, 13.5, 14, 14.5, 16, 16.5, 17 and 19 mm.

When to Use a Dovetail Mount:
Use the dovetail interface on rimfire rifles and also rifles with a built-in dovetail rail if you’re looking for simplicity and don’t need a lot of strength.

Standard Mounts (STD)

The “Standard” interface is one of the two interface names that can be fairly confusing (the other is “QR or Quick Release” below) because it is a name Leupold used to identify a specific mounting interface but the term also has a generic meaning.

In this case, the “Standard” interface by Leupold is nowhere near the standard interface (common/normal). In fact, the standard interface is very rare now and should be avoided as it is complicated and not near as strong nor easy to use as other interfaces here.

The front ring twists 90 degrees and locks into the base and is held into place by the scope whereas the rear ring is pinched in place by two small screws that can be used for windage adjustment. You’re most likely to see this setup on a rifle from the 1960s.

When to Use a STD Mount:
Unless you’re looking for a vintage look to a rifle or you’re trying to match some rings to a base that is already on the rifle and you don’t want to upgrade to a better interface, you should avoid the STD interface.

Quick Release

The term “quick release” can be confusing when talking about scope mounts (similar to STD/Standard above). This is because it is both a description of the function of certain scope rings AND a specific interface/product by Leupold.

In this section, we’re going to talk about the specific interface “quick release” or “QR.”

If you’re looking for rings that easily/quickly release regardless of their interface (the generic usage of teh term “quick release”), check out the section below “Other Scope Options.”

For example, you can have Picatinny rings that can be quickly removed from a rail. These would be considered Quick Release Picatinny rings but they definitely wouldn’t work with this specific Leupold product.

These “quick release” rings and bases by Leupold allow the rings to be released from the base by pressing a lever on the side of the base. These used to be popular on safari style rifles where the scope could be removed easily for air-travel or in case the scope broke while hunting dangerous game, it could be removed to use the rifle’s iron sights instead.

Leupold QR bases will only work with Leupold QR rings.

When to Use a Quick Release Mount:
Unless you’re going for a very specific look or function on a rifle or you’re trying to find rings to match bases that already on a rifle, we do not recommend using QR rings or bases.

Dual Dovetail Mounts

The Dual Dovetail/DD interface is an evolution of the STD/standard interface above.

In the DD interface uses the same system from the front ring in an STD interface for both the front and rear rings.

There are some benefits to this system as it is very strong and unlikely to fail. This is because each ring is inserted and rotated 90 degrees to lock into each base and then the scope body is installed within the rings.

Therefore, as long as the scope is in the rings, the rings can not come out of the base. This should also obviously show the problem with this system: the scope must be removed out of the rings in order to detach it from the rifle. This means that to re-attach the scope, it will need to be reset for position in the rings which includes re-leveling the scope and re-determining the forward and backward position.

When to Use a Dual Dovetail Mount:
Unless you’re going for a very specific look or function on a rifle or you’re trying to find rings to match bases that already on a rifle, we do not recommend using Dual Dovetail rings or bases.

Scope Mounting Options

There are some other terms and options you may encounter when determining the best system to mount a scope to your rifle. These terms are not unique interfaces but they are options you may see within a particular interface.

For example, you might find Picatinny rings, Picatinny quick release rings, a Picatinny offset mount, a Picatinny cantilever mount, or a Picatinny elevated base.

Each of these are a unique item.

But, don’t panic… we’re going to cover each for you here.

Quick Release Rings

Quick release rings are any rings that can be attached to, or removed from, a base or rail without tools.

For tactical rifles and low powered optics or red-dot scopes, it is common to use rings with a Picatinny interface but with a quick release feature so that they can easily be removed.

Do not confuse a ring’s quick-release capability with a specific product by Leupold, which I fairly rare, called “quick release” (see above for the specific product).

As long as you are purchasing a quality product, quick release rings can be just as strong and accurate as standard rings and can be very handy when moving optics between rifles or if you like to remove and change and optic on a rifle.

Off-Set Mounts

An offset scope mount is a scope mount that is offset from the centerline of the rifle. This allows you to mount a secondary optic to your rifle. Offset scope mounts are typically used on tactical rifles, where a low powered variable optic (LPVO), like a 1-6x scope, might be used in conjunction with a red dot. An offset mount is usually like a picatinny style mount set at a 45 degree angle.

When to Use an Off Set Mount:
If you’re into AR Style shooting then you might want an off set mount to run an off set red dot and also run a LVPO.

One Piece Rings/Mounts

Especially when dealing with scopes for AR-style rifles, one piece rings/mounts are sometimes used.

These items are two scope rings connected as one unit – this makes it easier and faster to mount optics as well as provide a good platform for a Quick Release mount system because only one main attachment point to the rifle exists.

Also, with cantilever systems (covered below), a one piece system makes this easier.

One or Two Piece Bases

Bases can come in either a one or two-piece setup.

If you’re looking for precision and strength, a solid one piece base is the way to go.

However, if you’d like to save some weight and like more open access to teh ejection port, a two piece base makes a lot of sense.

Cantilever Mount

On AR-style platforms, it is difficult to get the scope as far forward as most shooters need it to be. This is because of the relatively short receiver to which the scope can be mounted.

Because of this, cantilever mounts were made that use a one piece ring system that allow the scope to extend past the receiver and give an extra couple of inches of room for the shooter’s eye.

If you’re mounting a scope on an AR rifle, a cantilever one piece mount is a good idea.

Elevated Scope Bases

When shooting long range, it is not uncommon to run out of elevation adjustment in your scope. When you can no longer adjust the scope “up” any further, you are not able to shoot any farther.

Therefore, some scope bases are made with elevation built in to the base to angle the front of the scope down towards the barrel. This gives extra room for elevation adjustments.

For example, a 20 MOA base gives 20 Minutes of Angle (MOA) extra elevation adjustment within a scope (about 20 inches per 100 yards).

Next Steps to Mounting Your Scope

As you can see, there are different types of scope mounts to choose from. Depending on your purpose with the rifle, this can dramatically change which one you should use.

Now that there is a strong understanding of this, your next steps will be to purchase the right mount for your rifle, and then attach them. Also, if you haven’t selected the best scope for your rifle, be sure to check our our scope lists:

  • Scope Ring Finder: This tool will not only help you to find the right base, and rings, but will also help you to find the cheapest price online absolutely free. Just select your scope, and rifle, and then select which mount or integration you intend to use (using the information you got from this article)
  • Mounting a Scope Guide: Before you start setting up your scope, I would highly recommend spending the time reading our in-depth guide. It will help to make sure you attach all the components correctly.
  • Guide to Sighting in a Rifle: Once your scope is mounted correctly, you’re going to Sight In (Zero) your scope. Jump over and reference our How To guide and make sure you’ve got it zeroed correctly.
  • If you’re wanting a great resource for Zeroing your scope, download our FREE Sighting in Targets below.

Remember, your scope is unreliable if the mechanism holding it to the rifle is not sturdy, secure and robust. Scope mounts are dare I say, are almost as important as the scope itself and I’d suggest purchasing the best that you can afford.

Scope Ring Finder

Finally, once you know what type of mount you currently have on your rifle, and know what make and model of scope you’re going to install, head over to our Scope Ring Finder tool to find the correct rings for your scope and mount.

GU Scope Ring Finder


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About Tom Moore

Tom is the Content Manager and also one of our content writers at Gun University. When Tom isn't behind the keyboard, he participates regularly in NRL22 and IPSC. You'll often find him out hunting with his mates or camping with his family.

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  1. Oh, okay. No one has ever told me that scope rings with precise dimensions can help essential components of firearm to stay in place. I’ll remind my uncle about this particular aspects so he can purchase the right tools later. He’s going on a hunting trip with his buddies this weekend although it’s been ages since he last used his gun.

  2. My friends invited me to go target shooting with them last week, and since I got interested in it afterward, I’m planning to get better equipment to use for practice. Thanks for letting me know that for target setups, it’s usually common to use rings that are attached into one piece so there’s extra rigidity to it. I’ll keep this in mind when I look for scope rings to purchase from a trusted supplier.

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