5.56 Muzzle devices

Let me consolidate the info from vuurwapen, tons of good baseline videos on there, that way we have one thread with all the info.
 
Last edited:
The following was taken from Vuurwapenblog written by Andrew Tuohy, October 3rd 2013, unfortunately most of his pictures were deleted, but I think the videos still work.

"
AR-15 MUZZLE DEVICE COMPARISON

This article combines the three previous parts (flash, sound, recoil) into one link.

One of the most popular accessories for today’s AR15 owner is a muzzle device. Want less muzzle flash? There’s a device for that. Want less recoil? There’s a device for that, too. Want less muzzle flash AND less recoil? Some devices even claim to perform multiple functions.

I have been closely studying how various muzzle devices perform for years, and this summer, with the assistance of Advanced Armament Company, B.E. Meyers, and Silencerco, was able to test a significant number of devices currently on the market in unique and highly educational ways. I did not manage to test all of the devices on the market, or even all of the most popular ones. I did include a good sample of different types of devices. It is my hope that after reviewing this article, the reader will be able to look at any muzzle device and be able to make an educated guess regarding its characteristics in a number of areas. As you will see, some perform quite similarly to one another.

Individual Device Data

Bare Muzzle
This discussion must start with the baseline of “no muzzle device.”

The bare muzzle, as stated above, allows a large (and in this case, somewhat uninspired) fireball to form in front of the muzzle. It’s by far the largest in terms of area, although with this particular evaluation method it didn’t result in the highest peak brightness. Camera settings for all shots from this angle (unless otherwise specified) were f2.8, ISO 400, 1 second shutter speed. Absolutely no modifications were made to these photos, other than to resize them.
From 80 yards downrange, it was very clear where shots were coming from – note that in this and all downrange photos, you are seeing the aggregate muzzle flash of five shots. The photos of the muzzle from the side are a single shot, but are representative of the average muzzle flash exhibited by each device in near-total darkness.

Unfortunately, we lost the high speed video file which showed the bare muzzle.


A2
The ubiquitous A2 muzzle device is sold for $5-7. It is in use on nearly all US Military M16/M4 rifles, and a significant number of civilian AR15s as well.
Compared to the bare muzzle, the A2 offered a significant reduction in muzzle flash.

From downrange, the A2 was barely visible – I was able to spot it only because I knew exactly where the shooter was standing. If I were searching for the shooter, I would have a more difficult time – especially if he were shooting directly at me.

While photos are useful and illustrative of the overall flash allowed by each device, they show all of the light which occurred in a one second period in a single frame, which is not exactly how the human eye sees muzzle flash. The duration of muzzle flash from an AR15 with a muzzle device is approximately 1 millisecond, which is why many standard (30fps/60fps) camera videos are a poor choice for showing an entire event – a flash could be missed entirely by the camera.

High speed video, shot on Silencerco’s Phantom v12.1 at 7000fps and slowed down 10x, shows a closeup of the muzzle flash in slow motion. The duration of the visible flash is approximately 5/7000sec. It appears similar to the long exposure photography, although we can see each part as it occurs.

A still frame from high speed video, shot with a B.E. Meyers OWL night vision lens adapter, allows us to see much more flash than with the naked eye.

AAC Blackout
The Blackout is a 3 prong muzzle device described by the manufacturer as “the world’s most effective flash hider. The proprietary features eliminate muzzle flash, even on CQB-length barrels. The BLACKOUT® is inherently stronger and more impact resistant than four prong designs, while not being subject to the rapid erosion of closed-ended units.” It retails for approximately $59.

Using the same f2.8/ISO 400/1 sec camera settings, very little visible flash was observed.

Because it was so difficult to discern the best flash hiders from one another, additional shots were taken from the side with an ISO of 1600 and no other changes. This increases the camera’s sensitivity to light, but makes the images not directly comparable to the ISO 400 shots. Only attempt to compare these shots with other ISO 1600 shots, which will be identified as such below each photo.

From downrange, I did not observe any flash. The camera captured one “spark,” but I didn’t see it until I looked at the image.

In the Phantom high speed video, only 2/7000sec of relatively small flash is seen.

Using the OWL, a small amount of flash was visible in the IR spectrum.


BattleComp 1.0
The BattleComp, according to the manufacturer, “offers muzzle control like some of the best brakes on the market, with none of their liabilities” and gives “…excellent control WITHOUT the excessive concussion and crushing blast produced by most compensators on the market — with flash comparable to an A2.” It retails for $155.

Flash from the BattleComp was rather attractive, with tendrils of flame arcing out from the device in several directions. The muzzle flash was also immediately obvious and bright. The position of the muzzle was easily identifiable from downrange. Phantom high speed video showed significant flash which was visible for 1 millisecond, or 7/7000sec. No night vision or ISO 1600 methods were used with this device, due to the excessive muzzle flash.


B.E. Meyers 249F
The B.E. Meyers 249F is a 4 prong muzzle device which, according to the manufacturer, “virtually eliminate(s) muzzle flash.” It was originally designed for and sold to military and government customers, but recently became available on the civil market for $149.

From the side, almost no flash was visible at ISO 400. At ISO 1600, some flash was visible, but it was still remarkably low. From downrange, no flash was visible. Keep in mind that all downrange shots show the light from 5 rounds being fired. Using the Phantom high speed camera, a very small amount of flash was visible for 3/7000sec. The B.E. Meyers OWL showed more flash on average in the IR spectrum with the 249F than the AAC Blackout.

BWA X Comp
The Black Weapons Armory X Comp is made by Proto Tactical, and is described by BWA as “produc(ing) a light straight back recoil instead of producing muzzle rise…Most compensators and flash hiders cause the muzzle to rise up and lengthen the time required for the shooter to get back on target…The X design incorporated into the tip of the compensator and interior chamber design helps reduce the flash, which produces a much smaller signature that is normally produced by muzzle brakes.”

It’s designed to control the movement of the muzzle and retails for $120.

Flash from the X Comp was clearly visible and rather bright. From downrange, the position of the muzzle was immediately obvious. Phantom high speed video showed a relatively large muzzle flash which was visible for 6/7000sec. No night vision or ISO 1600 methods were used with this device, due to the excessive muzzle flash.

PWS FSC556
The Primary Weapons Systems FSC556 is a hybrid device which, according to PWS, “provides superior compensation characteristics combined with enough flash suppression to keep the flash out of your optics and line of sight.” It retails for $100.

Flash from the FSC556 was greater than that of the A2 and clearly visible. From downrange, the shooter’s position could be identified with relative ease. High speed video showed a moderate amount of flash which lasted 5/7000sec. No night vision or ISO 1600 methods were used with this device, due to the excessive muzzle flash.

PWS Triad
The PWS Triad is a three prong muzzle device which retails for $70. PWS say it “features a revolutionary design bringing true flash suppression together with reduced muzzle flip by redirecting gases exiting the muzzle without the overpressure created by muzzle brakes and recoil compensators.”

Flash was visible from the Triad, and although it was not very bright, it did cover an area of decent size. From downrange, it was slightly easier to identify the position of the Triad than the A2. High speed video showed a sizable amount of flash which was visible for 5/7000sec. The video also showed the Triad rotating as the rifle was fired due to its design (devices were not torqued for this test). No night vision or ISO 1600 methods were used with this device, due to the excessive muzzle flash.

Proto Tactical Z-Comp
Proto Tactical’s Z-Comp is a compensator with a unique angled forward end, which Proto claims “delivers significantly reduced recoil and decreases muzzle climb to help you get back on target quickly” without commenting on muzzle flash. It retails for $129.

Flash at the muzzle was comparable to other devices of this type – that is to say, bright. Flash from downrange was very easy to spot. On high speed video, it lasted just under one millisecond. No night vision or ISO 1600 methods were used with this device, due to the excessive muzzle flash.

Proto Tactical Z-Tac
Proto Tactical’s Z-Tac is a compensator with short flash suppressing tines on the front of the device. It retails for $129.

The Z-Tac was rather flashy at the muzzle. From downrange, it was easy to spot, and flash lasted just under one millisecond on high speed video. No night vision or ISO 1600 methods were used with this device, due to the excessive muzzle flash.

Rainier Arms XTC
The Rainier XTC is a hybrid device “designed to reduce felt recoil & muzzle rise with a relatively low muzzle flash. A true multi-functional muzzle device designed to do it all while looking great at an affordable price.” It retails for $57.

The area of flash as viewed from the side was relatively small, but very bright. From 80 yards downrange, the muzzle flash was spectacular and easily seen. If you are ever stranded on a hostile planet and need to signal for help from a passing spaceship, use the XTC. High speed video shows rolling fireballs escaping out each side of the XTC, with a total flash duration of approximately 6/7000 of a second. No night vision or ISO 1600 methods were used with this device, due to the excessive muzzle flash.

Silencerco Specwar Brake
The Silencerco Specwar Brake is a three port muzzle device intended to reduce recoil and provide a mounting location for the Specwar silencer. Its brother is the Saker Brake, which offers identical performance, but is intended to mount the Saker silencer. Both devices retail for $80.

As you might expect, this device had a lot of flash. I think this was my favorite muzzle device in terms of flash. Turn your head sideways, and it looks like a Christmas tree. From downrange, the Specwar brake was easy to spot, but it was not as bright as a few of the other devices, surprisingly. Unfortunately, we didn’t get high speed video of the Specwar Brake. No night vision or ISO 1600 methods were used with this device, due to the excessive muzzle flash.

Silencerco Trifecta
The Trifecta is a three prong flash hider designed to mount certain Silencerco suppressors while eliminating the ringing tone which other multi-prong devices are prone to emit when tapped on a hard surface or fired. It retails for $70.

The Trifecta allowed a small but somewhat visible amount of flash. At 1600 ISO, the flash was easily identifiable. A small but noticeable amount of flash was visible for approximately 5/7000sec on high speed video. Although performance in the IR spectrum varied from shot to shot more than the other devices, this is a representation of the average flash visible from the Trifecta with night vision.

Simple Threaded Devices 5.56
The, uh, STD is a unique device which looks rather like an elongated thread protector and is intended to keep noise and muzzle flash from interfering with the shooter during hunting. It sells for $55.

From the side, the STD had a noticeable amount of flash. It wasn’t terribly bright, but it was sizable. The position of the muzzle was easy enough to spot from downrange. On high speed video, the single fireball lasts just under 1 millisecond at 6/7000sec. No night vision or ISO 1600 methods were used with this device, due to the excessive muzzle flash.

Spike’s Tactical Dynacomp
The Dynacomp is, according to Spike’s, “designed to reduce recoil impulse and muzzle climb to provide faster follow up shots.” No claims are made on the Spike’s Tactical site regarding muzzle flash reduction. It retails for $90.

Muzzle flash from the Dynacomp is beautiful and awesome – and also bright. From downrange, the Dynacomp’s flash was immediately obvious. It was somewhat less than the XTC, but still unmistakable. On high speed video, the Dynacomp’s initial flash looked remarkably like the first microseconds of a nuclear explosion, lasting one millisecond, or 7/7000sec.

No night vision or ISO 1600 methods were used with this device, due to the excessive muzzle flash.

VG6 Precision Gamma 5.56
VG6’s Gamma 556 is claimed to be “a muzzle brake and compensator hybrid. It virtually eliminates recoil and minimizes muzzle movement. The unique combination of both braking and compensating features inspire shooter confidence and allows the shooter to make very fast follow up shots.” No statements are made regarding flash suppression.

Muzzle flash from the Gamma 556 was, as expected, healthy. The position of the shooter was easily identifiable from downrange. The VG6’s muzzle flash lasts 5/7000sec.

No night vision or ISO 1600 methods were used with this device, due to the excessive muzzle flash.

Vltor VC-1
The Vltor VC-1 is a birdcage-looking muzzle device that acts as a flash hider and mount for the Gemtech HALO silencer. It retails for $57.

The VC-1 has muzzle flash roughly comparable to the A2. From downrange, it was a challenge to spot the VC-1 – again, about on par with the A2. On high speed video, the flash profile was also remarkably similar to that of the A2 and lasted 5/7000sec.

No night vision or ISO 1600 methods were used with this device.


YHM Phantom
The Phantom is advertised as a flash hider which “virtually eliminates flash and provides excellent performance with night vision.” It retails for $34.

Although brighter than the Blackout and 249F, the Phantom provides rather excellent flash suppression for the price. At 1600 ISO, the flash was easily visible. From downrange, I could not identify the position of the muzzle, but flash was visible on camera (after 5 shots).

On high speed video, we can see a small amount of flash for roughly 3/7000s. Unfortunately, we lost the high speed night vision video of the Phantom.

Recoil Control
Using high speed video (courtesy of Silencerco) and multiple accelerometers, I will be able to show visually as well as mathematically how effective each device in the test is at recoil reduction. During a four month period, over 1500 rounds were fired to verify g-force data from the accelerometers. The results may be surprising to some.

Rearward Forces

Not surprisingly, the most effective muzzle devices in the test were also at the loud and bright end of the spectrum in the previous tests. Silencerco’s massive Specwar triple port brake/silencer mount was by far the most effective device at recoil reduction, for example, but it was also loud and created a distinctive muzzle flash.

Downward Forces

If we think of limiting rearward forces as recoil reduction, then limiting upward forces must be called “combating muzzle rise,” right? Wrong.

Consider yourself shooting a rifle with a bare muzzle from the standing position. In scientific terms, the rifle is an arm with forces being placed upon it at the very end – the muzzle. The gases exiting the muzzle do so in a very uniform manner, with essentially no variation from side to side and top to bottom. They do not inherently cause the muzzle to move up – if the rifle were to be suspended in the air, it would move straight back.

But it’s not suspended in the air, it’s connected to your body. It has to move in some direction, because an external force has acted upon it and it is no longer “at rest.” Because your body is connected to this arm, and the rifle is long and essentially pointed at (in physics terms, not weapon terms) your body, the arm will move mostly to the rear. However, because there is much more of your body below the point where the stock meets your shoulder, and because that part of your body is eventually connected to the ground, there will be a natural tendency for the muzzle to move upwards. Unless, that is, you adjust your stance and hold to limit this effect.

In other words, the only reason “muzzle rise” exists is due to the way we position ourselves as we shoot, and we can position ourselves to minimize that, especially with a 5.56 AR-15. There is no inherent tendency for the muzzle to rise on its own. Therefore we should use devices that push the muzzle down, right?

Of course not. The ideal device in terms of muzzle control would keep the muzzle exactly where it was before the shot was fired. We don’t always fire from the standing position, and if you’re trying to shoot side prone or underneath the bumper of a car, a device which “combats muzzle rise” will be constantly forcing the muzzle left or right with every shot.

Muzzle Device Videos
For those interested in the specifics of individual devices, here are the videos, which were shot with a 16″ midlength upper on a registered full auto lower. We’ll start with the bare muzzle as a baseline and then move on to the other devices. For all videos other than the bare muzzle, the video of the rifle being fired with the specified device will be seen, semi-transparent, on top of the video of the rifle with no muzzle device being fired.

Bare Muzzle
While a bare muzzle offers no recoil reduction, it has no quirks and recoils in a fairly straight line to the rear.
https://www.youtube.com/embed/88LXdNBPCRo

A2
The A2 did very little to retard the rearward movement of the rifle, but did force the muzzle down with every shot.
https://www.youtube.com/embed/kKGUaYyTe_Y

AAC Blackout
The rifle with AAC Blackout attached tracked in a nearly identical manner to the bare muzzle.
https://www.youtube.com/embed/bjkZ2vh09as

BattleComp 1.0
The BattleComp forced the muzzle down with every shot.
https://www.youtube.com/embed/cgWauqV0Vpk

B.E. Meyers 249F
The 249F, for an unknown reason, tracked higher than the bare muzzle. It’s likely that this was shooter error, but all due care was given to maintaining a consistent position and stance.
https://www.youtube.com/embed/2t8H4mOgOZU

BWA X-Comp
The X-Comp reduced recoil and kept the muzzle flat.
https://www.youtube.com/embed/DtiaITtuEqI

PWS FSC556
Similarly, the FSC556 reduced recoil and kept the muzzle on target.
https://www.youtube.com/embed/nKn5qnuxEGQ

PWS Triad
The PWS Triad forced the muzzle down more than almost any other device tested.
https://www.youtube.com/embed/X8qMLpGpRJM

Proto Tactical Z-Comp
The Z-Comp did a good job of reducing recoil, but pushed the muzzle down slightly.
https://www.youtube.com/embed/x66TumTYNSo

Proto Tactical Z-Tac
Performance of the Z-Tac was nearly identical to that of the Z-Comp.
https://www.youtube.com/embed/X7vLCuvhRvY

Rainier Arms XTC
The XTC reduced recoil significantly, but pushed the muzzle down slightly with each shot.
https://www.youtube.com/embed/7vDtdffGgLE

Silencerco Specwar Brake
Recoil with the Specwar brake was minimal and straight to the rear.
https://www.youtube.com/embed/bu6cEd0D68M

Silencerco Trifecta
Performance of the Trifecta in this regard was nearly identical to the bare muzzle.
https://www.youtube.com/embed/1b6N9zPyFxg

Simple Threaded Devices
The STD tracked in a nearly identical manner to the bare muzzle.
https://www.youtube.com/embed/u4hdS8IJlAE

Spike’s Tactical Dynacomp
The Dynacomp pushed the muzzle down with each shot.
https://www.youtube.com/embed/PeGL3BUkeU0

VG6 Precision Gamma 5.56
This early version of the VG6 Gamma reduced recoil but pushed the muzzle down significantly with each shot.
https://www.youtube.com/embed/LRvnngMtGBM


Vltor VC-1
The Vltor VC-1 reduced recoil slightly and kept the muzzle on target.

YHM Phantom
The YHM Phantom reduced recoil very slightly and kept the muzzle on target.

Overall Results

After three rounds of comparing muzzle flash, sound pressure level, and recoil reduction, how do the devices compare overall? And do I have any recommendations?

For the best flash reduction, the B.E. Meyers 249F would be my choice.

For truly outstanding flash reduction at a more affordable price, the AAC Blackout is excellent.

For the best recoil reduction, the Silencerco Specwar Brake was the clear winner.

For an excellent middle ground of recoil reduction, neutral muzzle position, and fireball mitigation, the FSC556 is a great compromise.

For recoil reduction on a budget, albeit with higher muzzle flash and some downward force on the muzzle, the Rainier XTC is a good choice.

For those seeking acceptable levels of muzzle flash without cash outlays, just keep the A2 that came with your rifle.

Despite its lackluster overall showing in the test, I rather like the STD simply because of its appearance, relatively low cost, and ever-so-slight reduction in sound levels at the shooter’s ear.

Is That All She Wrote?

There may be followups to these articles as I test more devices, devise additional test methods, or write more subjective articles about each device, but this constitutes the bulk of the testing I initially set out to complete.

"
 
Last edited:
4k posts and you dont know how? Go advanced post and click the movie icon. Paste your youtube link in the popup.
 
Aside from recoil, muzzle climb, and flash, I would love to know what effect these things would have on accuracy. I have an HK SL8. It sports a Hera Arms lower with an ACR butt, and a 6.5x20x44 Vortex. With my hand loads it shoots consistent 1 MOA. I would love to send it down to my favorite gunsmith and have that sucker turned and threaded 1/2x28 and put a nice comp on it if.... I knew it would not cost me any accuracy. I honestly don't know what the effect would be. With precision rifles does comps decrease, increase, or have no effect on accuracy. I am not a big fan of muzzle blast but I understand some of these devices send the blast forward and I would prefer that. If there would be a significant increase of accuracy I might try the common clap of thunder type most are. The glory of a threaded muzzle I guess is that I would be able to change out. Thoughts please.

Moe
 
Aside from recoil, muzzle climb, and flash, I would love to know what effect these things would have on accuracy. I have an HK SL8. It sports a Hera Arms lower with an ACR butt, and a 6.5x20x44 Vortex. With my hand loads it shoots consistent 1 MOA. I would love to send it down to my favorite gunsmith and have that sucker turned and threaded 1/2x28 and put a nice comp on it if.... I knew it would not cost me any accuracy. I honestly don't know what the effect would be. With precision rifles does comps decrease, increase, or have no effect on accuracy. I am not a big fan of muzzle blast but I understand some of these devices send the blast forward and I would prefer that. If there would be a significant increase of accuracy I might try the common clap of thunder type most are. The glory of a threaded muzzle I guess is that I would be able to change out. Thoughts please.

Moe

I don't think it affects accuracy one way or another, as I believe the projectile leaves the barrel way before the escaping gases and sound wave do and so is unaffected by any muzzle device. Brakes come into their own for by keeping you on target (for spotting hits or for rapid follow up shots, for ex.) and flash hiders are for not messing up your vision during low light/no light or giving away your position.
 
I don't think it affects accuracy one way or another, as I believe the projectile leaves the barrel way before the escaping gases and sound wave do and so is unaffected by any muzzle device. Brakes come into their own for by keeping you on target (for spotting hits or for rapid follow up shots, for ex.) and flash hiders are for not messing up your vision during low light/no light or giving away your position.

A muzzle device will negatively affect accuracy if it's overtorqued.
 
I have used the Miculek for a long time, sold it with my rifle. When I got a new rifle I bought the Lantac, it's amazing.

There is a downside, the faster you shoot the better it works. So if you are a slow shooter it works as good ad the Miculek, but at a faster rate it almost pushes the muzzle to the ground. I like it a lot!
 
Back
Top Bottom