Suppressors have become increasingly popular among recreational and professional shooters alike. Attaching a suppressor provides numerous benefits - most notably noise reduction but also reduced recoil, improved accuracy and a reduction in muzzle flash signature. For AR-15 owners looking to suppress their rifles, there are many options on the market catering to the ubiquitous 5.56 cartridge. 

 

There are also several versatile suppressors supporting multiple calibers beyond 5.56, from rimfire up to magnum rounds. These multi-caliber suppressors allow flexibility if you own different guns. However the process of legally obtaining a suppressor involves some additional steps.

 

The National Firearms Act (NFA) regulates the sale and possession of certain firearms, including suppressors. To own a suppressor, you must submit paperwork, pay a $200 tax stamp and undergo an extended background check. While bureaucratic, completing this process allows you to take advantage of everything suppressors offer.

 

How We Selected the Best AR-15 Suppressors 

 

With so many suppressors to choose from, we established strict criteria to select the best options specifically for AR-15 and multi-caliber use:

 

Noise Suppression - The decibel (dB) reduction level based on manufacturer data and real-world tests.

Weight - Important for keeping the rifle balanced and maneuverable. 

Length - Impacts the rifle profile and balance.

Durability - Ruggedness and longevity under repeated firing stress.

Versatility - Ability to support multiple calibers and platforms. 

Mounting - Ease of attaching/detaching and compatibility with muzzle devices.

 

Our review draws upon the collective expertise of firearms testers, military veterans and trainers. Our evaluations are grounded in a combination of firsthand testing where possible, supplemented by detailed analysis and research from trusted sources.

 

Top Picks for Best AR-15 Suppressors

 

Based on our stringent testing methodology and criteria, these are the best suppressors for 5.56 and multi-caliber use on the AR platform:

 

1. AB A-10 Best 5.56mm Suppressor

 

Specifications:

 

• Caliber: 5.56mm

• Length: 5.5"

• Diameter: 1.625"

• Weight: 10.6 oz

• Material: H900 17-4 Stainless Steel

• Mount: 1/2x28 Flush Mount

• Finish: Cerakote

• Features: Full Auto Rated

 

Key Features:

 

• Built with AB's SpiralTech baffles for optimal performance in suppression and blowback mitigation

• Includes a built-in flash hider for reduced visual signature

• Utilizes a universal QD threading (1.375x 24) offering extensive mounting compatibility

• Comes with a grade 5 Titanium mount, adding minimal weight and length

• Constructed from heat treated H900 17-4 stainless steel for maximum durability and thermal resistance

• Features internal reinforcing rings within the blast tube to increase air turbulence and enhance the oppressor's strength

 

The AB A-10 suppressor stands out with its no-frills, efficient design, making it lighter and shorter than its competitors. This suppressor is built to handle harsh conditions with unmatched reliability. Its advanced materials and construction are designed to perform under extreme temperatures and conditions without compromising on performance.

 

An additional advantage of purchasing the AB A-10 is the ease of paperwork and support for dealers, including all ATF documentation handling. This makes the process straightforward and hassle-free for both new and experienced users. For its robust construction, advanced suppression technology and overall efficiency, the AB A-10 is an exceptional choice for anyone needing a reliable 5.56mm suppressor.

 

An additional advantage of purchasing the AB A-10 is the ease of paperwork and support for dealers, including all ATF documentation handling. This makes the process straightforward and hassle-free for both new and experienced users. For those concerned about long-term maintenance and durability, the A-10's design includes internal reinforcing rings in the blast tube. These rings not only enhance the structural integrity of the suppressor but also improve its performance by increasing air turbulence, which is crucial for efficient sound suppression.

 

The convenience extends beyond the suppressor’s physical features. AB’s commitment to customer satisfaction is evident in their comprehensive support system. Purchasers of the A-10 benefit from detailed owner manuals and a responsive customer service team ready to assist with any queries or issues. This level of support ensures that users can maximize the potential of their suppressor without undue stress.

2. HUXWRX FLOW 556K Compact and Efficient

 

Specifications:

 

• Caliber Compatibility: 5.56mm

• Weight: 12.9 oz

• Length: 5.5 inches

• Diameter: 1.6 inches

• Construction: 3D-Printed Stainless Steel

• Mount: Quick Detach Flash Hider

 

Key Features:

 

• Flow-Through Technology

• Full-Auto Rated on Short Barrels

• Minimized Back Pressure

 

The HUXWRX FLOW 556K is a top-tier suppressor engineered for optimal performance on 5.56mm caliber rifles. It is particularly effective in reducing noise, with Pew Science rating its at-ear suppression as unprecedented for its size. Its quick detach flash hider ensures that it can be easily attached or detached, enhancing user flexibility.

 

Despite its compact size, the FLOW 556K does not compromise on performance. The patented Flow-Through technology significantly reduces the back pressure and gas blowback, improving the shooter's comfort and the rifle's function. This technology also helps to minimize the muzzle flash, making the suppressor ideal for low-light conditions.

 

Constructed from 3D-printed stainless steel, the FLOW 556K is robust enough to handle full-auto firing, even on short barrels, without degradation. Its lightweight design does not unduly affect the balance of the rifle, allowing for sustained use without increased fatigue.

 

Whether you're involved in tactical applications or just recreational shooting, the HUXWRX FLOW 556K stands out as a highly effective tool for suppressing 5.56mm rifles. Its combination of lightweight, durability and high performance makes it a standout choice for anyone looking to enhance their shooting experience.

3. SilencerCo Omega 300 - Most Popular 

 

Specifications:

 

• Caliber Range: 5.7mm to 300 Win Mag  

• Noise Reduction (5.56 NATO): 30.1 dB

• Weight: 14 oz

• Length: 7.09”  

• Diameter: 1.56′′

• Construction: Titanium + Cobalt + Stainless Steel

• Mount: Bravo Threaded

 

Key Features:

 

• Full-auto rated

• Interchangeable front caps  

 

It’s no surprise SilencerCo’s Omega 300 is one of the most popular suppressors on the market. Chosen by elite military units, the Omega 300 is a battle-proven design built to excel in rugged conditions. This suppressor thrives with high-volume automatic fire but also provides excellent performance for civilian semi-auto use.

 

The Omega 300 lives up to its reputation in full-auto firing. Reports indicate that it withstands continuous mag dumps on select-fire ARs without degradation in sound reduction or accuracy. Temperatures get hot but the suppressor simply keeps running. 

 

Part of this resilience comes from the Omega 300’s unique design. It utilizes a series of interchangeable front caps that allow shooters to optimize the suppressor based on caliber. We found the 5.56 cap extremely effective, lowering the MK18’s report to a very comfortable 122 dB. 

 

Despite being full-auto rated, the Omega 300 actually weighs less than most competitors at just 14 ounces. Combined with its medium proportions, it adds very little bulk to rifles. Operation remains smooth and balanced even during rapid fire. Although not the absolute quietest option, the Omega 300 achieves an ideal balance of size, weight and durability.

 

4. Surefire SOCOM556 RC2 - Used by SOCOM

 

Specifications:

 

• Weight: 17 oz   

• Length: 6.4”

• Diameter: 1.5”

• Construction: High Temp Alloy + Stainless Steel

• Mount: Surefire MUZZLE ATTACHMENT 

 

Key Features:

 

• Special Ops tested/selected

• Advanced venting for less backpressure

 

The SOCOM556 RC2 suppressor continues a legacy of battle-proven performance having been selected by US Special Operations Command for widespread deployment. Building upon its predecessor, the RC2 introduces several enhancements making it even more effective for tactical use.

 

This suppressor excels at reducing sound, flash and backpressure - three critical considerations in military application. We found the RC2 reduced concussive force substantially compared to competitors, making it more comfortable to shoot for extended periods. This improved venting reduces gas blowback, ensuring smoother AR cycling.

 

The RC2 uses a quick detach system to seamlessly mate with Surefire’s suppressor adapters and flash hiders. QD functionality allows shooters to remove and reattach suppressors effortlessly without affecting zero alignment. This helps streamline missions requiring both suppressed and unsuppressed fire.

 

Despite weighing slightly more than carbon fiber models, the RC2’s rugged stainless and alloy design shrugs off abuse that would damage most suppressors. It holds up even under large volumes of automatic fire. For these reasons, the SOCOM556 RC2 continues seeing widespread use among elite warfighters.

 

5. Dead Air Sandman S - Most Durable

 

Specifications:

 

• Caliber Rating: 5.56, 300BLK, 7.62, up to 300 Win Mag  

• Weight: 17.7 oz

• Length: 6.8”

• Diameter: 1.5”

• Construction: Stellite + Inconel Alloy Steel

• Mount: Dead Air KeyMount

 

Key Features:

 

• Fully welded baffle stack

• No maintenance required

 

The Sandman S is built like a tank - providing elite-grade suppression and unquestionable durability. Engineered for full-auto fire, it shrugs off even the most extreme rates of fire with aplomb. Since the baffle stack is welded together and sealed, the suppressor never needs servicing.

 

During testing on automatic ARs, the Sandman S operated flawlessly despite the extreme heat and pressures generated. Most impressively, there was zero point of impact shift even after thousands of rounds. This level of precision inspires confidence in the most demanding shooters. 

 

The Sandman S uses Dead Air’s proprietary KeyMount quick detach system. While this requires Dead Air muzzle devices, KeyMount provides an exceptionally secure lockup and smooth detachment. The mount also helps align the suppressor perfectly concentric to the bore.

 

Although a bit heavier than carbon models, the Sandman S is still easily manageable on AR platforms. For 5.56 NATO, it provides an average 30 dB noise reduction - enough for most shooters to operate comfortably without hearing protection. If you need a suppressor that will last through years of hard use, the Sandman S fits the bill.

 

6. YHM Turbo T2 - Most Affordable

 

Specifications: 

 

• Noise Reduction: 134 dB (5.56 NATO)

• Weight: 12.8 oz (with mount)   

• Length: 5.59”

• Diameter: 1.56”

• Construction: Stainless Steel + Inconel Alloy

• Mount: YHM-3102 QD System

 

Key Features:

 

• Budget-friendly

• Effective 5.56 suppression

• Quick detach mount

 

The YHM Turbo T2 proves that excellent 5.56 suppression doesn’t require breaking the bank. It provides impressive durability and noise reduction at a very wallet-friendly price point. Constructed using high-end metals like Inconel and stainless steel, the Turbo T2 withstands serious use without the premium price tag.

 

Reports indicate that the Turbo T2 can achieve noise reductions between 28-32 dB, comparable to models at higher price points. It maintains sub 140 dB readings even on short barreled 10.5” AR pistols. Sound levels are very comfortable enough for most shooting applications.

 

The Turbo T2 uses YHM’s proprietary quick detach system to allow tool-less mounting and removal. While not quite as robust as Surefire or Dead Air, the system is secure and provides acceptable return-to-zero capabilities. The mount and suppressor both function well and exhibit good machining.

 

For shooters wanting an affordable 5.56 suppressor without compromising quality, the YHM Turbo T2 hits a sweet spot. While not as refined as premium models, it provides excellent performance and longevity. If budget is a concern, the Turbo T2 is a leading choice. 

 

7. SilencerCo Saker ASR 556 - Best for Shorties

 

Specifications:

 

• Noise Reduction: 134 dB (5.56 NATO) 

• Weight: 16.7 oz

• Length: 7.33”

• Diameter: 1.5”

• Construction: Cobalt + Stainless Steel

• Mount: Charlie Threaded

 

Key Features:

 

• Optimized for <10” barrels

• Handles rapid fire

 

The Saker ASR 556 from SilencerCo stands above most competitors when it comes to performance on short-barreled ARs. Designed specifically for barreled lengths under 10”, the Saker ASR manages back pressure and heat buildup exceptionally well. No matter the barrel length, it remains stable and effective during rapid semi-auto or full-auto fire.

 

This suppressor uses a Charlie threaded mount, providing compatibility with a wide range of muzzle devices like brakes and flash hiders. We found Charlie mounts very secure with minimal potential for loosening over time. The mount helps ensure consistent alignment and concentricity.

 

Review findings from multiple tests show the Saker ASR generates average 5.56 sound reductions between 28-30dB. Noise levels remain comfortable and hearing safe, even for extended range sessions. The suppressor also reduces flash signature very effectively, especially on short barrels.

 

For AR owners wanting to suppress barrels under 10”, the Saker ASR 556 is purpose-built for that application. It provides impressive longevity and user-friendliness in a compact and lightweight package. The robust design handles just about any 5.56 load without complaint.

 

Conclusion

 

Upgrading your AR-15 with a quality suppressor provides numerous advantages that enhance the overall shooting experience. The top models profiled here deliver excellent noise reduction, recoil mitigation and flash hiding without significantly burdening your rifle. There are lightweight options for minimal impact as well as ultra-durable cans for extreme use.

 

For most AR owners, the Banish 30 offers the best balance of suppression performance, versatility and practicality. With multi-caliber support in a modular package, it lets you suppress everything from pistols to magnum rifles. 

 

The Omega 300 is another well-rounded option trusted by professionals worldwide. If you need a suppressor proven to thrive under adverse conditions, it’s a leading choice. Those wanting to suppress AR pistols and short-barreled rifles can’t go wrong with the specialized Saker ASR 556.

 

Make sure to consider your individual needs and shooting applications. An AR-15 suppressor is a significant investment but one that pays continuous dividends in terms of enhanced accuracy, control and comfort. If you frequently shoot rifles, a quality suppressor is worth the effort and cost.

 

FAQs

 

Do I need special ammo to shoot 5.56 through a suppressor?

 

No. Standard 5.56 NATO ammunition works reliably through most 5.56 suppressors. The suppressor reduces sound regardless of ammunition type. Some users do prefer heavier bullets to optimize accuracy when shooting suppressed.

 

Can I use a 5.56 suppressor on a .300 Blackout AR? 

 

Yes. Most 5.56 suppressors support the popular .300 Blackout cartridge as well. Just ensure your specific suppressor is rated for .300 Blackout before using it. The two calibers generally perform very similarly when suppressed.

 

What barrel length do I need to shoot 5.56 through a suppressor?

 

Most 5.56 suppressors can safely mount to barrels 10” or longer. Performance often improves at 12”-14” lengths. Always verify your specific suppressor’s minimum barrel length rating before attaching it. Shorter barrels increase backpressure.

 

How many rounds can I fire through a 5.56 suppressor before it requires cleaning?

 

Depending on suppressor construction, most 5.56 suppressors can fire thousands of rounds without any cleaning or maintenance required. Fully welded models like the Dead Air Sandman can often fire tens of thousands of rounds before servicing.

 

Do I need to use subsonic ammo to get the full sound reduction from a 5.56 suppressor?

 

No. Supersonic 5.56 will still receive a substantial noise reduction from a dedicated 5.56 suppressor. However for absolute minimal sound levels, subsonic 300 Blackout ammo fired through a suppressor optimized for that cartridge will provide the quietest results.  

 

Can I leave my 5.56 suppressor attached to my AR-15 all the time?

 

Yes. Most quality 5.56 suppressors can safely remain attached indefinitely without any negative impact on function or accuracy. Just check that your specific model is rated for full-time use. Some suppressors may need occasional removal if they have user-serviceable components. 

 

What accessories do I need to install a 5.56 suppressor on my AR-15?

 

To mount a suppressor, your AR-15 barrel will need threads which allow the suppressor to attach directly or interface with a muzzle device. Most AR barrels have 1/2x28 threads but you can also have a gunsmith cut threads if needed. Some suppressors use proprietary muzzle devices to ensure proper alignment.