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7/11/2014 7:36:51 AM EDT
I am on what seems to be an endless search for a 556 can to go on a 10.3" & maybe 18". Started looking at the G5-T and looks like it has been out a few years but no solid or minimally informative reviews. Anyone know about the construction and preformance?
7/11/2014 12:27:24 PM EDT
[#1]
Saker or Specwar 5.56?
7/11/2014 2:00:33 PM EDT
[#2]
I have a gemtech trek and love it. Runs great. I'd love to have a G5-T.
They make good stuff, I can't complain. I saw all their new stuff at shot show this year and it was pretty impressive. Did you look at the 556LE? That's their new model and looks pretty sweet too. But you really can't go wrong and you are going to love how light weight it is, it's scary light.
7/11/2014 2:03:17 PM EDT
[#3]
The Saker762 may prove to be more versatile in the long run, and it's a bit quieter when attached to a 5.56 as opposed to the dedicated 5.56 can...
7/11/2014 3:39:19 PM EDT
[#4]
GoLoud & Alabama I have a Saker 762 that went pending on paper in May and I planned to use that for Blackout, 308 and 556 at first. I did have the thought that the Saker 762 will do what any other dedicated 556 can would do DB wise but weight is the diffrence. I saw no point in getting a Saker 556 or Specwar 556 as the Saker 762 will perform just as the Saker 556 and The Specwar seemed to have the better DB preformance  but was going to be longer and heavier which seemed counter productive. I started looking at the Gemtech G5-T and on paper it seems to surpress quite well and the weight is also light but did not see much info on quality control or preformance review. I even considered the direct thread Trek-T and newer Extreme Duty LE. I do not mind spending in the NFA game but I want what I pay for and I do not see much on Gemtech as far as their centerfire cans go and what I have found was mostly related to their G5 and its quality issue which seemed to have been addressed.

*grammer
7/11/2014 3:47:14 PM EDT
[#5]
I don't think either of us are trying to talk you out of anything, but when you ask, we tend answer.  I'm open to any and all information when it comes to suppressors...
7/11/2014 4:03:22 PM EDT
[#6]
Quote History
Quoted:
I don't think either of us are trying to talk you out of anything, but when you ask, we tend answer.  I'm open to any and all information when it comes to suppressors...
View Quote


No brother I in no way was talking down or feeling that you all were trying to do such a thing. I was engaging with you all to further the conversation by sharing my thoughts which were alike to you all. I post here because I do wish to hear what you all have to say and gain some knowledge along the way.
7/11/2014 4:29:42 PM EDT
[#7]

Quote History
Quoted:
No brother I in no way was talking down or feeling that you all were trying to do such a thing. I was engaging with you all to further the conversation by sharing my thoughts which were alike to you all. I post here because I do wish to hear what you all have to say and gain some knowledge along the way.
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Quoted:



Quoted:

I don't think either of us are trying to talk you out of anything, but when you ask, we tend answer.  I'm open to any and all information when it comes to suppressors...




No brother I in no way was talking down or feeling that you all were trying to do such a thing. I was engaging with you all to further the conversation by sharing my thoughts which were alike to you all. I post here because I do wish to hear what you all have to say and gain some knowledge along the way.
I'm rather new to the game, and like you, wanting to learn as much as possible.  I'll be interested to see what further commentary comes from this thread.  I have a SKR762 in jail also, as well as a Spectre II, and trying to decide between a 45 or 9mm can for a 9mm build.  My thought process, at this point, is to get the most versatile can possible unless one has a specific need that can't otherwise be fulfilled...

 
7/11/2014 4:43:14 PM EDT
[#8]
Same as you guys, Saker 7.62 in jail, and from all reports (see what I did there) it's quiet with 5.56.

But I'm interested in how it will feel on the end of my MK18 10.3".  It's not a light can, and the OAL will brush up to 18". So we shall see.

If I remember correctly, there was a heated debate a few weeks ago about the use of titanium alloys in centerfire cans. I believe the G5T was discussed and PHD from Gemtech participated. I'll go look.

EDIT: Disregard. The thread is too annoying to suggest you read it. And light on the tech info.
7/11/2014 5:15:43 PM EDT
[#9]
I have a trek-t. I THINK it has the same baffle stack as the g5t. Stupid light and sounds better than my friends yhm. Ask joey in gemtechs industry forum.



" />
7/11/2014 5:32:01 PM EDT
[#10]
Quote History
Quoted:
I'm rather new to the game, and like you, wanting to learn as much as possible.  I'll be interested to see what further commentary comes from this thread.  I have a SKR762 in jail also, as well as a Spectre II, and trying to decide between a 45 or 9mm can for a 9mm build.  My thought process, at this point, is to get the most versatile can possible unless one has a specific need that can't otherwise be fulfilled...  
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Quoted:
Quoted:
Quoted:
I don't think either of us are trying to talk you out of anything, but when you ask, we tend answer.  I'm open to any and all information when it comes to suppressors...


No brother I in no way was talking down or feeling that you all were trying to do such a thing. I was engaging with you all to further the conversation by sharing my thoughts which were alike to you all. I post here because I do wish to hear what you all have to say and gain some knowledge along the way.
I'm rather new to the game, and like you, wanting to learn as much as possible.  I'll be interested to see what further commentary comes from this thread.  I have a SKR762 in jail also, as well as a Spectre II, and trying to decide between a 45 or 9mm can for a 9mm build.  My thought process, at this point, is to get the most versatile can possible unless one has a specific need that can't otherwise be fulfilled...  


I was on that same 45 vs 9 can thought process and have came down to either the Octane 9 or Tirant 9. Will likely grab the Octane 9 as it breaks down serviceable and can shoot 22LR out it if I ever get into that. I would host it on my M&P and maybe down the line a 9MM SBR. I have a Colt 1911 because well MERICA!!! but do not see nor feel the need to get into 45ACP so that eliminated the 45 can need.
7/11/2014 5:36:54 PM EDT
[#11]
Quote History
Quoted:
Same as you guys, Saker 7.62 in jail, and from all reports (see what I did there) it's quiet with 5.56.

But I'm interested in how it will feel on the end of my MK18 10.3".  It's not a light can, and the OAL will brush up to 18". So we shall see.

If I remember correctly, there was a heated debate a few weeks ago about the use of titanium alloys in centerfire cans. I believe the G5T was discussed and PHD from Gemtech participated. I'll go look.

EDIT: Disregard. The thread is too annoying to suggest you read it. And light on the tech info.
View Quote


Yes I as well am interested in fact i think we had a thread on that where I posted the MicroMOA MK18-Saker combo. I did read that Titanium thread when it was in action but as you said not much to take other than broad discussion on metals and heats effects on it's strength
7/11/2014 5:40:34 PM EDT
[#12]
Quote History
Quoted:
I have a trek-t. I THINK it has the same baffle stack as the g5t. Stupid light and sounds better than my friends yhm. Ask joey in gemtechs industry forum.



http://<a href=http://i293.photobucket.com/albums/mm52/sworley98/IMG_0014_zpsf4f122e6.jpg</a>" />
View Quote


How is the weight balance and how does the can do being a direct thread on coming loose if at all during firing? Do you notice what some claim as far as Titanium cans shooting sparks which i was a bit thrown off on or may not be understanding completely as I awesomed on short SBR's and short cans some kind of flash would occur? Great looking SBR
7/11/2014 5:54:33 PM EDT
[#13]
Most of the current 5.56 cans have similar performance.   That is, one is not going to blow the others out of the water.   A G5, an M42K, a Saker and a current YHM will be closer than anyone likes to admit.   The difference is in features and mounts.  



I have a G5 that I use on 5.56, but I mainly bought it for use on a PS90.   Its overkill for 5.7 and its a heavy can, but I think the Gemtech bi lock is the best mount solution for the PS90.    Having said that...



Sakers have the best mounts, IMHO.    Better than Surefires even, but thats just what I think.  



Speaking of Surefires, they are great as well, but they arent quieter than the competition.  



AAC cans have the most plentiful mounts and great market saturation.   In the NFA world, this is important, IMHO.  



YHM's are usually more cost effective.  



The Gemtech G5T is a good can, and the mount is very good.   The Gemtech doesnt really excel at anything, but it doesnt really fall behind anywhere either.   Ive seen on other boards where people say that the M42k is quieter than the G5's, but that has not been my experience and I own both of them now.   I really think there is a lot of Koolaid in the suppressor world.     The fact is that 5.56 is loud as fuck, and a silencer can only do so much.  



Ive honestly gotten to the point where I feel that whatever manufacturer has the best mount will have the best can for my needs.  




7/11/2014 8:06:56 PM EDT
[#14]
Quote History
Quoted:
Most of the current 5.56 cans have similar performance.   That is, one is not going to blow the others out of the water.   A G5, an M42K, a Saker and a current YHM will be closer than anyone likes to admit.   The difference is in features and mounts.  

I have a G5 that I use on 5.56, but I mainly bought it for use on a PS90.   Its overkill for 5.7 and its a heavy can, but I think the Gemtech bi lock is the best mount solution for the PS90.    Having said that...

Sakers have the best mounts, IMHO.    Better than Surefires even, but thats just what I think.  

Speaking of Surefires, they are great as well, but they arent quieter than the competition.  

AAC cans have the most plentiful mounts and great market saturation.   In the NFA world, this is important, IMHO.  

YHM's are usually more cost effective.  

The Gemtech G5T is a good can, and the mount is very good.   The Gemtech doesnt really excel at anything, but it doesnt really fall behind anywhere either.   Ive seen on other boards where people say that the M42k is quieter than the G5's, but that has not been my experience and I own both of them now.   I really think there is a lot of Koolaid in the suppressor world.     The fact is that 5.56 is loud as fuck, and a silencer can only do so much.  

Ive honestly gotten to the point where I feel that whatever manufacturer has the best mount will have the best can for my needs.  

View Quote


Really changed my perspective on the situation, great post
7/12/2014 4:43:46 AM EDT
[#15]
Quote History
Quoted:
   The fact is that 5.56 is loud as fuck, and a silencer can only do so much.  

Ive honestly gotten to the point where I feel that whatever manufacturer has the best mount will have the best can for my needs.  

View Quote


That gem is worth the price of admission. Here's mine, I like the bi-lock mounting system, still rings my ears after a few rounds though...
7/12/2014 5:40:43 AM EDT
[#16]
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That gem is worth the price of admission. Here's mine, I like the bi-lock mounting system, still rings my ears after a few rounds though...
<a href="http://s680.photobucket.com/user/slipjett/media/IMG_5519.jpg.html" target="_blank">http://i680.photobucket.com/albums/vv165/slipjett/IMG_5519.jpg</a>
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Quoted:
Quoted:
   The fact is that 5.56 is loud as fuck, and a silencer can only do so much.  

Ive honestly gotten to the point where I feel that whatever manufacturer has the best mount will have the best can for my needs.  



That gem is worth the price of admission. Here's mine, I like the bi-lock mounting system, still rings my ears after a few rounds though...
<a href="http://s680.photobucket.com/user/slipjett/media/IMG_5519.jpg.html" target="_blank">http://i680.photobucket.com/albums/vv165/slipjett/IMG_5519.jpg</a>


KAC sweetness, is that the G5-T, I assume as I see thier QD mount on? How does weapon balance feel? With that 11.5" barrel?
7/12/2014 6:22:17 AM EDT
[#17]
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KAC sweetness, is that the G5-T, I assume as I see thier QD mount on? How does weapon balance feel? With that 11.5" barrel?
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That's a G5-T with a 14.5" KAC. The closest I have to 11.5" is a 10.5" DI and 12" piston, they're both LMTs, so they balance well as the rifles are already heavy as shit.
7/12/2014 7:46:03 AM EDT
[#18]
Quote History
Quoted:
Same as you guys, Saker 7.62 in jail, and from all reports (see what I did there) it's quiet with 5.56.

But I'm interested in how it will feel on the end of my MK18 10.3".  It's not a light can, and the OAL will brush up to 18". So we shall see.

If I remember correctly, there was a heated debate a few weeks ago about the use of titanium alloys in centerfire cans. I believe the G5T was discussed and PHD from Gemtech participated. I'll go look.

EDIT: Disregard. The thread is too annoying to suggest you read it. And light on the tech info.
View Quote


The summary is a lot of internet experts say a titanium centerfire rifle suppressor can not hold up to full auto fire.

Gemtech says their full auto rated titanium centerfire rifle suppressor can and do.

They now produce a titanium .300WM full auto rated can.
7/12/2014 9:18:16 AM EDT
[#19]
I originally bought a G5 and HVT. After the titanium cans were released I picked up a Quicksand and G5-T. They are a lot lighter and suppress better. I like that they all use the same mounts, and the bi-lock is by far my favorite mount type offered on the market.

I have 10.5, 11.5, 16 and 18 in 5.56. The G5 I have is the older, heavier model.  Once I picked up the G5-T, the G5 only saw use on the 10.5 and 11.5. The G5-T pretty much lives on the SPR 18". Balance is great and even better on the 10.5 and 11.5.

Both the G5 and G5-T have been used in full auto and rapid successive semi auto. Haven't seen any signs of appreciable wear. G5 is around 15k fired and the G5-T is around 5k (80/20 semi/full auto)
7/13/2014 9:26:35 AM EDT
[#20]
Quote History
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Yes I as well am interested in fact i think we had a thread on that where I posted the MicroMOA MK18-Saker combo. I did read that Titanium thread when it was in action but as you said not much to take other than broad discussion on metals and heats effects on it's strength
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Quoted:
Quoted:
Same as you guys, Saker 7.62 in jail, and from all reports (see what I did there) it's quiet with 5.56.

But I'm interested in how it will feel on the end of my MK18 10.3".  It's not a light can, and the OAL will brush up to 18". So we shall see.

If I remember correctly, there was a heated debate a few weeks ago about the use of titanium alloys in centerfire cans. I believe the G5T was discussed and PHD from Gemtech participated. I'll go look.

EDIT: Disregard. The thread is too annoying to suggest you read it. And light on the tech info.


Yes I as well am interested in fact i think we had a thread on that where I posted the MicroMOA MK18-Saker combo. I did read that Titanium thread when it was in action but as you said not much to take other than broad discussion on metals and heats effects on it's strength


Part of the problem is everyone has a different definition of Full auto. For one person its a couple bursts, for another its a dozen 100rd beta mags lines up on a tabled fired back to back while holding the rifle with oven mittens. Plus ever titanium suppressor is different, the wall thickness can vary, grade of metal, welds, baffles design or materials, etc...so to general and say that ALL titanium suppressors are not rated for Full Auto is rather ignorant. At the end of the day I trust what the manufacturer tells me, not the random person on a internet forum proclaiming to be a expert in suppressor design and metallurgy. Having spoke with a Gemtech sales rep i was told that their Trek-T suppressor was designed, tested and rated for Full Auto but should be allowed to cool in between mags. Their new GMT series of titanium suppressors are however rated for PROLONGED Full Auto fire, meaning its good for consecutive mag dumps, belt fed weapons, etc... I originally planned to get the Trek-T but as i have plans for a m16 in the future i decided to go with the GMT-556LE instead.

http://www.gem-tech.com/store/pc/GMT-556LE-p978.htm
7/13/2014 11:21:43 AM EDT
[#21]
Quote History
Quoted:


Part of the problem is everyone has a different definition of Full auto. For one person its a couple bursts, for another its a dozen 100rd beta mags lines up on a tabled fired back to back while holding the rifle with oven mittens. Plus ever titanium suppressor is different, the wall thickness can vary, grade of metal, welds, baffles design or materials, etc...so to general and say that ALL titanium suppressors are not rated for Full Auto is rather ignorant. At the end of the day I trust what the manufacturer tells me, not the random person on a internet forum proclaiming to be a expert in suppressor design and metallurgy. Having spoke with a Gemtech sales rep i was told that their Trek-T suppressor was designed, tested and rated for Full Auto but should be allowed to cool in between mags. Their new GMT series of titanium suppressors are however rated for PROLONGED Full Auto fire, meaning its good for consecutive mag dumps, belt fed weapons, etc... I originally planned to get the Trek-T but as i have plans for a m16 in the future i decided to go with the GMT-556LE instead.

http://www.gem-tech.com/store/pc/GMT-556LE-p978.htm
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Quoted:
Quoted:
Quoted:
Same as you guys, Saker 7.62 in jail, and from all reports (see what I did there) it's quiet with 5.56.

But I'm interested in how it will feel on the end of my MK18 10.3".  It's not a light can, and the OAL will brush up to 18". So we shall see.

If I remember correctly, there was a heated debate a few weeks ago about the use of titanium alloys in centerfire cans. I believe the G5T was discussed and PHD from Gemtech participated. I'll go look.

EDIT: Disregard. The thread is too annoying to suggest you read it. And light on the tech info.


Yes I as well am interested in fact i think we had a thread on that where I posted the MicroMOA MK18-Saker combo. I did read that Titanium thread when it was in action but as you said not much to take other than broad discussion on metals and heats effects on it's strength


Part of the problem is everyone has a different definition of Full auto. For one person its a couple bursts, for another its a dozen 100rd beta mags lines up on a tabled fired back to back while holding the rifle with oven mittens. Plus ever titanium suppressor is different, the wall thickness can vary, grade of metal, welds, baffles design or materials, etc...so to general and say that ALL titanium suppressors are not rated for Full Auto is rather ignorant. At the end of the day I trust what the manufacturer tells me, not the random person on a internet forum proclaiming to be a expert in suppressor design and metallurgy. Having spoke with a Gemtech sales rep i was told that their Trek-T suppressor was designed, tested and rated for Full Auto but should be allowed to cool in between mags. Their new GMT series of titanium suppressors are however rated for PROLONGED Full Auto fire, meaning its good for consecutive mag dumps, belt fed weapons, etc... I originally planned to get the Trek-T but as i have plans for a m16 in the future i decided to go with the GMT-556LE instead.

http://www.gem-tech.com/store/pc/GMT-556LE-p978.htm


I sent an email on this can to silencer shop see below:

-----Original
Message-----
From: NikolaFermi

Sent: Thursday, July 10, 2014 1:55 PM
To: Silencer Shop Sales
Subject: Trek-T vs GMT Extreme Duty

Looking into a direct thread
for a 10.3" & 18" barrel and was wondering
if the only difference between these two cans is the 2 ounce
weight difference and if that difference is related to
Gemtech using a different blast baffle on the Extreme Duty
line?

Thanks,

Sent
from my iPhone

Subject: RE: Trek-T vs GMT Extreme Duty
To: NikolaFermi
Date: Thursday, July 10, 2014, 1:30 PM

The outside is the same
as the Trek-T & G5-T, but the inner material & cores
are a different design and thickness - once fully
constructed and welded it adds 2 oz. of weight to the same
length and tube diameter suppressor.  They are all tested
to the SOCOM standard, Full Auto rated, and are both
extremely durable suppressors

Thanks!  Roy

Roy Stagg
Silencer Shop
Silencer Ownership Simplified
www.silencershop.com
512-931-4556
Phone Hours:
Mon-Fri  9am - 6pm, Sat  12noon-4pm
888-659-1246 fax
Store
Location: 13729 Research Blvd., Suite 630, Austin, TX
78750
Store Hours:  Mon-Fri  11am - 6pm,
Sat 12 noon - 4pm

7/13/2014 12:09:43 PM EDT
[#22]
Quote History
Quoted:

Part of the problem is everyone has a different definition of Full auto. For one person its a couple bursts, for another its a dozen 100rd beta mags lines up on a tabled fired back to back while holding the rifle with oven mittens. Plus ever titanium suppressor is different, the wall thickness can vary, grade of metal, welds, baffles design or materials, etc...so to general and say that ALL titanium suppressors are not rated for Full Auto is rather ignorant. At the end of the day I trust what the manufacturer tells me, not the random person on a internet forum proclaiming to be a expert in suppressor design and metallurgy. Having spoke with a Gemtech sales rep i was told that their Trek-T suppressor was designed, tested and rated for Full Auto but should be allowed to cool in between mags. Their new GMT series of titanium suppressors are however rated for PROLONGED Full Auto fire, meaning its good for consecutive mag dumps, belt fed weapons, etc... I originally planned to get the Trek-T but as i have plans for a m16 in the future i decided to go with the GMT-556LE instead.

View Quote


At issue with the 5.56 doing beta mag dumps is one of ammunition. After somewhere between 120 and 150 rounds full auto, the barrel is hot enough that the bullet core starts to melt and the bullet destabilizes. The only way a 5.56mm can of any material will hold up to abusive firing schedules is if the bore aperture is opened up to .340" or larger, and then reduction suffers.

The bullet issue is not present in other calibers, and in the 5.56 it is due to the small mass of lead in the core and the large surface area of copper, which conducts heat rapidly.

For those who asked, the G5-T and TREK-T use the same baffle stack.

In the suppressor classes I teach, when we go to the range, we do sound measurements on a G5, an AAC M4-2000, a KAC M4-QD and a Surefire FA556K. All have similar sound levels with the SF being only slightly louder than the others.
7/13/2014 3:23:00 PM EDT
[#23]
Dr. Dater, does the regular G5 and the regular Trek also have the same stack?
7/14/2014 8:08:55 AM EDT
[#24]
Quote History
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I have a trek-t. I THINK it has the same baffle stack as the g5t. Stupid light and sounds better than my friends yhm. Ask joey in gemtechs industry forum.



http://<a href=http://i293.photobucket.com/albums/mm52/sworley98/IMG_0014_zpsf4f122e6.jpg</a>" />
View Quote


Yes, the TREK-T & G5-T have the same stack. They only differ in mounts, TREK-T is a direct thread (10oz 30dB of reduction), G5-T is a quickmount (13oz 34dB of reduction), both are all Titanium with Inconel blast baffles.
Both hearing safe on 5.56, down to a minimum barrel length of 10.3".

Hope this helps?
Joey
7/14/2014 8:15:44 AM EDT
[#25]
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Yes, the TREK-T & G5-T have the same stack. They only differ in mounts, TREK-T is a direct thread (10oz 30dB of reduction), G5-T is a quickmount (13oz 34dB of reduction), both are all Titanium with Inconel blast baffles.
Both hearing safe on 5.56, down to a minimum barrel length of 10.3".

Hope this helps?
Joey
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Quoted:
Quoted:
I have a trek-t. I THINK it has the same baffle stack as the g5t. Stupid light and sounds better than my friends yhm. Ask joey in gemtechs industry forum.



http://<a href=http://i293.photobucket.com/albums/mm52/sworley98/IMG_0014_zpsf4f122e6.jpg</a>" />


Yes, the TREK-T & G5-T have the same stack. They only differ in mounts, TREK-T is a direct thread (10oz 30dB of reduction), G5-T is a quickmount (13oz 34dB of reduction), both are all Titanium with Inconel blast baffles.
Both hearing safe on 5.56, down to a minimum barrel length of 10.3".

Hope this helps?
Joey


I thought I'd read that no 5.56 can is going to be hearing safe.
7/14/2014 8:25:46 AM EDT
[#26]
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I thought I'd read that no 5.56 can is going to be hearing safe.
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I run a Trek-T on a 10.5" 5.56mm rifle, and I get a very slight ringing in my ears if I fire it (even once) in an open area outdoors without hearing protection.

I'm not an audiologist, but I don't consider it hearing safe for routine and repeated use based on that experience. It's an acceptable sound level if I have to fire it without hearing protection, and it will certainly mean the difference between significant and permanent hearing damage versus minimal hearing damage.

ETA: To be clear, I am not in any way criticizing Gemtech or the Trek-T. I simply do not think that getting a truly "hearing safe" 5.56mm rifle is realistic.
7/14/2014 10:17:37 AM EDT
[#27]
Quote History
Quoted:


I run a Trek-T on a 10.5" 5.56mm rifle, and I get a very slight ringing in my ears if I fire it (even once) in an open area outdoors without hearing protection.

I'm not an audiologist, but I don't consider it hearing safe for routine and repeated use based on that experience. It's an acceptable sound level if I have to fire it without hearing protection, and it will certainly mean the difference between significant and permanent hearing damage versus minimal hearing damage.

ETA: To be clear, I am not in any way criticizing Gemtech or the Trek-T. I simply do not think that getting a truly "hearing safe" 5.56mm rifle is realistic.
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Quoted:

I thought I'd read that no 5.56 can is going to be hearing safe.


I run a Trek-T on a 10.5" 5.56mm rifle, and I get a very slight ringing in my ears if I fire it (even once) in an open area outdoors without hearing protection.

I'm not an audiologist, but I don't consider it hearing safe for routine and repeated use based on that experience. It's an acceptable sound level if I have to fire it without hearing protection, and it will certainly mean the difference between significant and permanent hearing damage versus minimal hearing damage.

ETA: To be clear, I am not in any way criticizing Gemtech or the Trek-T. I simply do not think that getting a truly "hearing safe" 5.56mm rifle is realistic.


On a 16" barrel it sounds like a .22 lr being shot out of a pistol unsuppressed, and with a 10.5" its louder than that. it might technically be hearing safe but for a lot of people including myself its still a bit uncomfortable to shoot a lot high volume of shots.
7/14/2014 11:59:26 AM EDT
[#28]
Quote History
Quoted:


I run a Trek-T on a 10.5" 5.56mm rifle, and I get a very slight ringing in my ears if I fire it (even once) in an open area outdoors without hearing protection.

I'm not an audiologist, but I don't consider it hearing safe for routine and repeated use based on that experience. It's an acceptable sound level if I have to fire it without hearing protection, and it will certainly mean the difference between significant and permanent hearing damage versus minimal hearing damage.

ETA: To be clear, I am not in any way criticizing Gemtech or the Trek-T. I simply do not think that getting a truly "hearing safe" 5.56mm rifle is realistic.
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I thought I'd read that no 5.56 can is going to be hearing safe.


I run a Trek-T on a 10.5" 5.56mm rifle, and I get a very slight ringing in my ears if I fire it (even once) in an open area outdoors without hearing protection.

I'm not an audiologist, but I don't consider it hearing safe for routine and repeated use based on that experience. It's an acceptable sound level if I have to fire it without hearing protection, and it will certainly mean the difference between significant and permanent hearing damage versus minimal hearing damage.

ETA: To be clear, I am not in any way criticizing Gemtech or the Trek-T. I simply do not think that getting a truly "hearing safe" 5.56mm rifle is realistic.


By "hearing safe," what is meant is the requirement in both MIL-STD 1474D and OSHA regulations that state that peak sound levels over 140 dB mandate hearing protection. We measure at the industry standard of 1 meter to the side of the muzzle. Our experience has been that at the general (and somewhat ill-defined) location of the "shooter's ear," the sound level is generally 3-4 dB lower than it is at the reference location of 1 meter left of the muzzle.

All of our suppressors reduce the sound to the point where the sound pressure level at the reference location is lower than 140 dB with all warranted barrel lengths. With most of our .223 suppressors, this is in the vicinity of 135-137 dB, depending on the barrel length.

Please remember that the bullet flight noise ballistic crack) for the .223 is around 148 dB, but this is a shock wave being generated down range  and what we hear is reflected back toward the shooter. When you consider the attenuation due to the inverse square law, the ballistic crack is almost never an issue for hearing damage to the shooter.

Hope this helps.


7/19/2014 5:46:12 PM EDT
[#29]
Quoted:
I am on what seems to be an endless search for a 556 can to go on a 10.3" & maybe 18". Started looking at the G5-T and looks like it has been out a few years but no solid or minimally informative reviews. Anyone know about the construction and preformance?
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Pulled the trigger on a Gemtech GMT-556QM

7/19/2014 5:50:05 PM EDT
[#30]
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Quoted:


Pulled the trigger on a Gemtech GMT-556QM

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Quoted:
Quoted:
I am on what seems to be an endless search for a 556 can to go on a 10.3" & maybe 18". Started looking at the G5-T and looks like it has been out a few years but no solid or minimally informative reviews. Anyone know about the construction and preformance?


Pulled the trigger on a Gemtech GMT-556QM



Will check back in two years to see you first impressions.
7/19/2014 6:21:49 PM EDT
[#31]
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Quoted:


Will check back in two years to see you first impressions.
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Quoted:
Quoted:
Quoted:
I am on what seems to be an endless search for a 556 can to go on a 10.3" & maybe 18". Started looking at the G5-T and looks like it has been out a few years but no solid or minimally informative reviews. Anyone know about the construction and preformance?


Pulled the trigger on a Gemtech GMT-556QM



Will check back in two years to see you first impressions.


Ha, will do sir
7/19/2014 8:15:34 PM EDT
[#32]
The new AAC Ranger 3 looks like a nice option for a thread on 5.56 can.  I haven't seen any numbers or videos on its suppression capability, but the size is fairly compact and lighter at 13.8 oz.  Not as light as some titanium cans, but considerably lighter than Saker 5.56, Specwar or M42K.
7/19/2014 9:02:22 PM EDT
[#33]
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Quoted:
The new AAC Ranger 3 looks like a nice option for a thread on 5.56 can.  I haven't seen any numbers or videos on its suppression capability, but the size is fairly compact and lighter at 13.8 oz.  Not as light as some titanium cans, but considerably lighter than Saker 5.56, Specwar or M42K.
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Yes I looked in to those and seem to be good options but I choose a QM as I have multiple uppers I want to run
7/21/2014 7:30:14 AM EDT
[#34]
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Quoted:


Pulled the trigger on a Gemtech GMT-556QM

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Quoted:
Quoted:
I am on what seems to be an endless search for a 556 can to go on a 10.3" & maybe 18". Started looking at the G5-T and looks like it has been out a few years but no solid or minimally informative reviews. Anyone know about the construction and preformance?


Pulled the trigger on a Gemtech GMT-556QM



Nice, you'll love it!!!
Joey
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