AR Folding Stock Adapter

Skyler Barr
16 min readMar 22, 2024

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Welcome to our in-depth review of the AR Folding Stock Adapter, a must-have accessory for any AR-15 enthusiast. In this article, we’ll be exploring the benefits, design, and functionality of this innovative folding stock adapter, so sit back and prepare to be amazed!

The Top 12 Best AR Folding Stock Adapter

  1. KRISS Vector Folding Stock Adapter for 2017 Gen 2 without Hinge — This KRISS Vector Folding Stock Adapter is a must-have for Gen II 2017 KRISS owners who are looking for a sleek and robust solution to fold their stock, giving them convenience and versatility in their shooting experience.
  2. AR-Platform Stock Tube Adaptor — The Midwest Industries MISTAP Stock Tube Adaptor provides a sleek, black hardcoat anodized aluminum design, offering a seamless fit for AR-Platform sniper stocks with Picatinny rail systems.
  3. Midwest Industries AK Side Folding Stock Adapter — Upgrade your M4 side folding beam with Midwest Industries Mi Alpha Series — the versatile, milspec stock adapter for ultimate customization.
  4. Low-Profile 2-Position AR Buffer Tube Folding Adapter — The SB Tactical BTFA Tact Buffer Tube Fold Adapter is a sleek, low-profile 2-position folding solution compatible with all buffer tube receptacles except for AR-15s, made from high-quality 6061 type III anodized aluminum.
  5. GrovTec Stock AR Forearm Stud Adaptor for Enhanced Firearm Compatibility and Versatility — The Grovtec GTSW266 Stock AR Forearm Stud Adaptor is a versatile and robust accessory, designed to increase the functionality and adaptability of your firearm, featuring a secure connection for slings or bipods, black oxide finish, and made in the USA.
  6. Premium 6061 Aluminum Black Stock Adapter for B&T APC — Custom-made for B&T APC, this Midwest Industries Stock Adapter adds picatinny rail for greater versatility, boasts a USA-crafted 6061 aluminum construction, and offers high-quality performance for weaponry enhancement.
  7. Slime’s Air & Water Adapter Kit for Multiple Valve Types — Easily add ballast and release pressure with Slime’s versatile Air & Water Adapter Kit for efficient tire inflation and maintenance.
  8. Compact AR Folding Stock Adapter with Buffer Tube Adaptor — The Midwest Industries Side Folder W- Buffer Tube Adapter is a high-quality, heavy-duty AR folding stock adapter that offers a robust and versatile solution for your firearm needs.
  9. Black Widow HC-FA: Heavy-Duty Trailer Hitch Adapter for Folding Hitch-Mounted Carriers — Effortlessly fold up your hitch-mounted carrier with the Black Widow HC-FA, featuring heavy-duty steel construction and compatibility with 5.1cm Class III or IV vehicle hitch receivers.
  10. Multi-Purpose AR Folding Stock Adapter for Baby Plates and Light Stands — Streamline your setup with the versatile Matthews 429241 Cheater Adapter, allowing seamless integration of baby plates and light stands, ensuring hassle-free charging for all involved.
  11. Ultimate Flexzilla Blow Gun Tip Adapter Kit for Precision Work — Customize your Flexzilla blow guns with the versatile modular accessories system for optimal safety and performance in automotive workshops.
  12. Earls 516ERL Performance Sandwich Filter Adapter — Earl’s Performance 516ERL Sandwich Filter Adapter: Effortlessly relocate your oil filter, maintain its stock location, and increase filter length in a snap for seamless cooler adjustments.

Reviews

KRISS Vector Folding Stock Adapter for 2017 Gen 2 without Hinge

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I recently got my hands on the Kriss Vector Folding Stock and have been testing it out. As a long-time Kriss Vector fan, I was excited to see how this new adapter would perform. The build quality is top-notch, and I appreciate the matte black finish that blends seamlessly with my firearm.

One standout feature is the ease of installation. It took me only a few minutes to attach the adapter to my Vector, and it fit snugly without any wobble. The folding mechanism is smooth and reliable, making it a great addition for those who want a more versatile shooting experience.

However, there is one downside that I’ve noticed. The longer overall length of the rifle with the folded stock makes it a bit more difficult to maneuver in tight spaces, such as during indoor shooting or in a vehicle. This might not be a dealbreaker for everyone, but it’s something to consider if you’re planning on using this gun for close-quarters scenarios.

Overall, the Kriss Vector Folding Stock Adapter Gen2 is a solid choice for those looking to enhance the versatility of their Kriss Vector firearm. With its smooth operation and sleek design, it’s definitely worth considering for your next shooting adventure.

AR-Platform Stock Tube Adaptor

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The Midwest Industries MISTAP Stock Tube Adaptor is a game-changer for AR-platform users. This sleek and sturdy aluminum piece can fit Picatinny rails effortlessly, making it a perfect addition to any existing setup. The black hardcoat anodized finish not only gives it a cool look, but also protects it from scratches and wear.

One of the standout features in my experience was the ease of installation. It requires just a few simple steps, and before you know it, your AR-platform is elevated to the next level. As someone who appreciates convenience, this feature was a major highlight for me.

However, while the heavy construction adds to its durability, it might be a bit of a hassle to carry around, especially if you’re frequently on the move. So, while this adaptor is a fantastic addition to any AR setup, it might require a little more effort when it comes to portability.

Despite this minor setback, the overall experience with the Midwest Industries MISTAP Stock Tube Adaptor has been positive. It’s a reliable, functional, and stylish piece that’s definitely worth the investment for any AR enthusiast.

Midwest Industries AK Side Folding Stock Adapter

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As a shooter, I’ve tried several side-folding stocks for my AK rifle, but the Midwest Industries Mi Alpha Series M4 Beam has been my go-to for quite some time now. The ease of installation is impressive, and it connects seamlessly to a 1913 interface.

I love that I can choose any milspec stock to customize the look and feel of my rifle, which gives it a unique edge while maintaining its practicality. However, one downside I’ve noticed is that the stock might wobble slightly when folded, which can be a minor concern during rapid fire.

Overall, the Alpha Series M4 Beam has been a reliable and functional addition to my side folding beam design.

Low-Profile 2-Position AR Buffer Tube Folding Adapter

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I had the chance to try out the SB Tactical BTFA Folding Adapter, and let me tell you, it exceeded my expectations. The low-profile design allowed me to easily and smoothly fold it to either the right or left side, making it a versatile option for my needs. The secure locking mechanism ensures that it stays in place whether it’s open or closed, giving me peace of mind during use.

Made of sturdy 6061 type III anodized aluminum, this adapter is built to last and withstand the rigors of daily use. However, I did notice that it’s not compatible with AR platforms, so keep that in mind before making a purchase.

Overall, the BTFA Folding Adapter is a high-quality and reliable option for those in the market for a tactical buffer tube. With its sleek design and solid construction, it’s definitely worth considering for your next purchase.

GrovTec Stock AR Forearm Stud Adaptor for Enhanced Firearm Compatibility and Versatility

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The Grovtec Stock AR Forearm Stud Adaptor is a nifty little helper for those looking to utilize standard locking swivels or bipods on their forearms. Made right here in the USA, this adaptor is crafted with high-quality materials for durability and performance. I especially liked the black oxide finish which gave it a sleek, professional look.

This adaptor is not just sturdy, but it’s also incredibly easy to install and remove from your firearm. It provides a strong and reliable connection point for accessories such as a sling or bipod, adding to your gun’s versatility. Not only does it keep your gear securely attached, but it also ensures a stable shooting platform, significantly enhancing your aiming precision and overall shooting performance.

But the real kicker is its universal compatibility! This Grovtec Forearm Stud Adaptor can be used with a wide range of firearms — it doesn’t discriminate. This means less need for multiple adaptors, less hassle, and more convenience.

The reviews are raving about it too. It’s been described as well-built, high-quality, and easy to use. Overall, for anyone looking to boost their AR pistol usage with additional features, consider giving Grovtec Stock AR Forearm Stud Adaptor a try. You won’t regret it!

Premium 6061 Aluminum Black Stock Adapter for B&T APC

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I recently gave the Midwest Industries B&T APC Stock Adaptor a try, and I must say, it exceeded my expectations. Made to perfectly fit my B&T APC, this adaptor brought my weaponry to a whole new level. Not only did it add an essential section of picatinny rail to the back of the receiver, but it also opened up possibilities for stocks, arm braces, and sling adaptors.

To my delight, this adaptor is 100% crafted in the USA and constructed with 6061 Aluminum, which was hardcoat anodized for durability. I’ve been using it in my daily life, and it’s been functioning flawlessly and smoothly.

However, there were a few minor cons to consider. Firstly, the assembly process could be a bit tricky, but once you have it firmly in place, it’s a piece of cake. Additionally, though this is a minor issue, it might not be the best option for beginners or those who are looking for a more affordable stock adapter.

All things considered, the Midwest Industries B&T APC Stock Adaptor is an impressive piece of equipment that’s well worth the investment for anyone seeking to enhance their firearm performance.

Slime’s Air & Water Adapter Kit for Multiple Valve Types

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As a reviewer, I’ve tested Slime’s Air & Water Adapter Kit myself and it’s become a handy addition to my toolkit. When I needed to add some ballast to my tires, this kit smoothly connected to both tubeless and tubed tires. Its sturdy build made it comfortable to work with, fitting standard garden hoses, air/water valves, and standard value stems.

However, I did find one drawback: the air relief valve size was a bit too small for my preference. Some excess back pressure leaked back into the hose which slightly affected the overall performance. Despite this minor inconvenience, the kit was easy to install and I found the integrated bleeder button particularly helpful when releasing excess air.

What stood out to me was the versatility of the kit, whether I was working on lawn mower tires, tractor tires, or even filling reservoirs with water or other liquids. The kit included two O-rings which was a thoughtful addition. It provided a secure fit on the tires and ensured there were no leaks during the inflation process.

Overall, I found Slime’s Air & Water Adapter Kit a great addition to my tool collection. Despite the small air relief valve issue, the features and functionality more than made up for it. High quality and easy to use, I would definitely recommend this to others.

Compact AR Folding Stock Adapter with Buffer Tube Adaptor

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Over the past few months, I’ve been experimenting with different firearm accessories, and one that stands out is the Midwest side folder with buffer tube adaptor. Made from 4140 steel, the sturdy construction gives you a great sense of a lock-tight hold on your equipment. The long locking lug is another feature that makes this product even more robust.

What really drew me in was the adaptability of it. You can fold it left or right, making it suitable for a range of hand and arm sizes. It’s also modular, meaning it can fit various attachments that you might want to add. Plus, with its ability to accommodate a Mil-Spec buffer tube, you can really customize your firearm.

In terms of weight, it’s relatively light at 8.4 oz, yet it doesn’t compromise on strength. The mag phosphate finish on the steel parts gives it a great look and also adds durability. The adaptor also offers a good level of compatibility and enhances the overall functionality of the firearm.

However, folding this side folder can be a bit of a task. While it does allow for easy storage and handling, it might take a bit force to bend, which could be a setback for some users.

Overall, I’ve had a positive experience with the Midwest Side Folder W- Buffer Adaptor. Its modularity and ability to support a variety of accessories make it a versatile and suitable addition to any 1913 setup. But be prepared to put in a bit more effort when unfolding it, so it’s not without its caveats.

Black Widow HC-FA: Heavy-Duty Trailer Hitch Adapter for Folding Hitch-Mounted Carriers

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I’ve been using the Black Widow Folding Heavy Duty Hitch Adapter for a couple of days now, and it’s been quite handy for my daily adventures. The key feature that I love about this adapter is how easily it allows me to fold my hitch-mounted carrier when it’s not in use. This saves me a ton of time and hassle as opposed to continually having to remove and install the carrier.

The adapter comes with specifications for compatibility, which are easy to follow. It’s a simple matter to measure the distance between the end of the hitch tube and the hitch pin hole to ensure correct fitment. The instructions are clear, and the setup process has been smooth so far.

One of the pros of this product is the robust steel construction, which offers a substantial weight capacity of 230kg. This provides peace of mind when using it with my motorcycle carrier, as I know it can handle the load comfortably.

However, there are also a few cons I’ve encountered. Some level of adjustment was required to ensure the adapter functions correctly with my existing carrier. This required very minor modifications and doesn’t detract significantly from the overall performance.

In terms of build quality, I’ve noticed a minor issue with the paint rubbing off between certain surfaces during use, which might cause some wear and require future adjustments. This isn’t a major concern at the moment but is something worth noting.

In summary, the Black Widow Folding Heavy Duty Hitch Adapter has been a reliable addition to my daily routine, making it easier than ever to fold and park my carriers when they’re not needed. Despite the minor drawbacks, I would definitely recommend this product for anyone looking for a convenient way to manage their hitch-mounted carriers.

Multi-Purpose AR Folding Stock Adapter for Baby Plates and Light Stands

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The Matthews Cheater Adapter is a compact and sturdy accessory that can expand the versatility of your baby plates and light stands. I recently had the chance to test it out, making use of its additional 60 degrees of downward adjustment. In tight spaces, such as setting up lighting on location, this little gadget really shines.

It’s also a life-saver when fitting larger modifiers to light stands, as I’ve experienced with my Elinchrom 190cm Litemotiv and Matthews Hollywood Baby Jr. Triple Riser.

As for its build quality, it’s typical of anything Matthews produces — solid and durable.

Ultimate Flexzilla Blow Gun Tip Adapter Kit for Precision Work

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In my daily life, I often find myself using a variety of tools for different tasks. Recently, I stumbled upon the Flexzilla AG1099FZ Blow Gun Tip Adapter Kit, and it quickly became one of my go-to accessories for my blow gun. The kit’s modular accessories system allows me to easily customize the extension length and tips for the task at hand. The safety nozzles and bendable extension are not only labeled, but they also meet or exceed OSHA standards, making it a professional-grade tool.

I appreciate the versatility this kit provides, especially when working in my automotive workshop. The needle tips and rubber tip are essential in my line of work, and having them readily available ensures quick and efficient problem-solving. However, one downside I’ve noticed is that the kit may not be suitable for all applications outside of automotive maintenance, as it’s designed specifically for mechanics.

Overall, the Flexzilla Blow Gun Tip Adapter Kit has proven to be a valuable tool in my work life. Its safety features, versatility, and professional quality make it a worthwhile investment for anyone in the automotive industry.

Earls 516ERL Performance Sandwich Filter Adapter

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When I needed to relocate my oil filter for a custom oil cooler installation, I came across Earl’s Performance 516ERL — Sandwich Filter Adapter. It made my life so much easier! . This bypass adapter fit perfectly with my engine and allowed me to maintain the stock filter location.

The black anodized finish also added a nice touch of style. One thing I noticed was that it added around 1 inch to the filter length.

As for installation, it was a breeze — simply attach the 3/8 inch NPT female pipe thread and you’re good to go. Although it’s not required, having a spare adapter for backup would be a smart move. Overall, this Sandwich Filter Adapter performed like a charm, and I highly recommend it to anyone looking to relocate their oil filter for a unique custom project.

Buyer’s Guide

AR Folding Stock Adapters are accessories designed to transform your AR-15 rifle’s stock to provide a more efficient use of space and enhanced safety features. This section will provide an overview of the most important features, considerations, and general advice when choosing an AR Folding Stock Adapter.

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Key Features

  • Compatibility: Ensure the adapter you choose is compatible with your specific AR-15 rifle model, as well as the stock you wish to replace.
  • Reliability: Opt for a high-quality, durable material that can withstand the wear and tear of frequent use.
  • Safety: Select a folding stock adapter with integrated safety features that minimize the chance of accidental discharges when folding or unfolding the stock.
  • Comfort: Choose an adapter with an ergonomically designed folding stock that provides a comfortable and natural shooting position.

Important Considerations

  • Storage: Incorporating an AR folding stock adapter can offer more compact storage options when your rifle is not in use.
  • Durability: Investing in a quality folding stock adapter can help prevent common issues such as wear and tear, rusting, or damage to the rifle’s stock.
  • Ease of Use: Opt for a folding stock adapter that is quick and easy to fold and unfold, with minimal friction and snagging risks.
  • Design: Select a folding stock adapter with an attractive design that matches your rifle’s overall aesthetic appeal.
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General Advice

When selecting an AR Folding Stock Adapter, consult with an experienced firearm expert or read reviews from satisfied customers to ensure a worthwhile investment. Research online forums, social media groups, and trusted websites to gather information on folding stock adapters and find recommendations from reputable sources. Finally, take the time to practice with your newly-equipped rifle to become efficient in folding and unfolding the stock for optimal use and safety.

FAQ

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What is an AR Folding Stock Adapter?

An AR Folding Stock Adapter is a device that allows the user to fold the stock of an AR-15, AR-10, or similar firearm. This provides a more compact and portable design for those who need to carry their firearm in situations where space is limited.

Which firearms can use an AR Folding Stock Adapter?

There are two main types of AR Firearms: AR-15 and AR-10. The AR Folding Stock Adapter is designed to work with both types, as long as the firearm is equipped with a standard AR-15/M4 or AR-10/M14 buffer tube.

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What are the benefits of using an AR Folding Stock Adapter?

  • Enhanced portability and compactness for carrying purposes
  • Reduced visibility, making it harder for potential attackers to spot the firearm
  • Improved recoil management for better shooting accuracy

How easy is it to install an AR Folding Stock Adapter?

Installing an AR Folding Stock Adapter is typically a straightforward process that does not require any modifications to the firearm. Simply remove the existing stock and replace it with the adapter. Make sure to follow the manufacturer’s instructions for proper installation.

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What materials are AR Folding Stock Adapters made from?

AR Folding Stock Adapters are generally made from high-strength, lightweight materials like aluminum or composite materials. This provides durability and reduces weight for enhanced performance.

Are there different designs or models of AR Folding Stock Adapters?

Yes, there are multiple designs and models of AR Folding Stock Adapters available on the market. Some are collapsible, while others fold completely. Additionally, there may be differences in the materials used, mounting systems, or compatibility with various firearms.

How much do AR Folding Stock Adapters typically cost?

Pricing for AR Folding Stock Adapters can vary depending on the brand, materials, and features. Generally, they range from around $150 to $300, but prices can be higher or lower depending on the specific model and retailer.

Can an AR Folding Stock Adapter be used as a last-minute survival tool?

While an AR Folding Stock Adapter can provide benefits in terms of portability and concealment, it is not designed to be a last-minute survival tool. It is primarily a functional accessory for AR-style firearms.

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