Gemtech Trek-T > Silencers

Posted: 1/27/2012 2:51:34 PM EDT

I am thinking of buying one for my 10.5 inch AR.

Anyone here run one on an SBR?

Hows the sound reduction?

Pros/cons??

Posted: 1/28/2012 6:08:14 AM EDT

[#1]

It will be close to hearing safe.

Reduces the muzzle blast to a manageable level.

Definitely do it.

Posted: 1/28/2012 6:17:54 AM EDT

[#2]

I have been on the fence about buying one as well. From the pics online, it appears to be the same basic can as the Gemtech G5, but without the QD and built from titanium. That tells me it will be just about as quiet as a 5.56 can on a SBR can be since the G5 is a good can. Sound level should be about like firing a high velocity 22lr unsuppressed. What has me holding off is that I keep reading that titanium slowly ablates when firing and in doing so titanium cans throw sparks out the front. Maybe Kel or somebody can chime in and let us know if this decreases the life of the suppressor or not. It is an expensive can and while it would be worth it for the weight savings, it might not be worth it to me if it has a shorter service life or if the sparking is excessive.

Posted: 1/28/2012 6:26:56 AM EDT

[#3]

I have the Trek (Stainless Steel version) & G5 (Fast attach Stainless Steel version). I don't notice a difference in sound between the 2. I also have the G5-T (Ti version of G-5) and don't notice a difference between the three. I'd assume the Trek-T is the same as well.

I've been very happy with the Gemtech offerings.

I got them in the following order:

G5
G5-T
Trek

I wish I'd purchased the Trek-T instead of the Trek but was low on funds at the time so went the cheaper SS route.

I've been running the G5-T on 11.5", 16" & 18" barrels without issue. I haven't noticed any erosion of the blast baffle. As far as night shooting - I haven't noticed any abnormal sparking... but I wasn't really paying close attention. I'll have to watch for it next time I go night shooting.

Edit: PHD with the answers, guy knows his stuff! Glad I have the G5-T

Posted: 1/28/2012 8:24:46 AM EDT

[#4]

We have found no significant sparking with the titanium suppressors and no decrease in lifespan. We have also experienced no increased erosion by using titanium. The titanium has a higher yield strength than the stainless, even at temperature. In the TREK-T and G5-T, we do use an inconel insert in the blast baffle. The design of the blast baffle and insert protect the remainder of the baffle from the initial blast of hot powder particles. There are no differences in sound levels between the stainless and titanium versions of the suppressors, and all our suppressors are classified as hearing safe by both OSHA and MIL-STD specifications for firearms.

Posted: 1/28/2012 3:41:19 PM EDT

[#5]

I edited my post above. The trek ti is the lightest thread on that is hearing safe

Posted: 1/29/2012 6:14:12 AM EDT

[#6]

Quoted:
It will be close to hearing safe.

Reduces the muzzle blast to a manageable level.

Definitely do it.

Posted: 1/30/2012 6:09:57 PM EDT

[#7]

Thanks PHD, you set my mind at ease.

In 5-6 months I'll be back with after pictures.

As it sits now..

10.5 LMT with 10 inch Spikes BAR rail,

GG&G F&R BUIS.

T-1 in GG&G QD mount

FDE Magpul gear everywhere

The TREK-T should fit under the rail by about 1/8 inch to give it a semi MP5-SD look.

Posted: 1/30/2012 7:49:35 PM EDT

[#8]

Very nice =D. Similar setup (10.5" in common) with YHM Spectre Length (9.675"), Gemtech G-5. Magpul furniture & BUIS. TI T-15 multi marked lower... not as black as I hoped it would be.

I keep meaning to take better pictures with my EOS5D but never seem to get around to it. Sorry for blurry.

Posted: 2/3/2012 12:51:03 PM EDT

[#9]

I have been looking at the Trek and really like it. I am a lefty so one of the things I worry about is blowback in my face. Is it really bad? Or will I barely notice it after a while?

Posted: 2/3/2012 7:31:54 PM EDT

[#10]

Quoted:

We have found no significant sparking with the titanium suppressors and no decrease in lifespan. We have also experienced no increased erosion by using titanium. The titanium has a higher yield strength than the stainless, even at temperature. In the TREK-T and G5-T, we do use an inconel insert in the blast baffle. The design of the blast baffle and insert protect the remainder of the baffle from the initial blast of hot powder particles. There are no differences in sound levels between the stainless and titanium versions of the suppressors, and all our suppressors are classified as hearing safe by both OSHA and MIL-STD specifications for firearms.

Oh bullshit.

 Footnote(1) When the daily noise exposure is composed of two or
more periods of noise exposure of different levels, their combined
effect should be considered, rather than the individual effect of
each. If the sum of the following fractions: C(1)/T(1) + C(2)/T(2)
C(n)/T(n) exceeds unity, then, the mixed exposure should be
considered to exceed the limit value. Cn indicates the total time of
exposure at a specified noise level, and Tn indicates the total time
of exposure permitted at that level. Exposure to impulsive or impact
noise should not exceed 140 dB peak sound pressure level.

http://www.osha.gov/pls/oshaweb/owadisp.show_document?p_table=STANDARDS&p_id=9735

http://www.silencerforum.com/forum/showthread.php/649-5-56mm-suppressors-%28and-7-62mm-QD-cans-on-5-56mm%29-SOUND-TESTING-on-a-KAC-SR15E3-%2816-quot-%29
MIL STD 1474C Par. 4.3 requires hearing protection when impulse sound is above 140db.
Even on a bolt gun the spl at the ear is 130db or above, which is rated by the NIOSH as having a <1 second PER DAY safe exposure limit.

These sound results are in line with what Titsworth and Paulson measure.

You didn't know any of this, PHD? I didn't even bring up the Blackside.

Posted: 2/14/2012 3:54:35 PM EDT

[#11]

Quoted:
I have been looking at the Trek and really like it. I am a lefty so one of the things I worry about is blowback in my face. Is it really bad? Or will I barely notice it after a while?

I have been waiting patiently, any idea how bad the blowback will be for a lefty on the Trek? Thanks!

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