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Tromix S-17 8" vs 10" vs 12" comparison Pic


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I have received quite a few requests for a comparison pic of the 8"/10"/12" S-17 SBS and thought I would post one here.

I was planning on getting a pic up on the Tromix website, but my camera took a shit and the only pic I have (this one) is out of focus and not website worthy.

 

Top 12"

Middle 10"

Bottom 8"

 

Tony Rumore

Tromix Corp

 

post-3-12632429858793_thumb.jpg

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Obviously the 12in would have the least muzzle blast givin the distance of the barrel from the shooter. I also thought the 12in looked the most proportioned and would be the best in terms of balance and function(that is why my sbs that is being built has a 12in barrel) It would give you the best of both worlds compactness, shot pattern, and velocity( see the barrel length vs velocity thread) 12in barrel only drops 120-130fps vs 28in barrel or 75-85 fps vs 19in barrel

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Kross was the only option on the 12" length hand guard and they only delivered two of them before going out of business.

I sell so few 12" guns, I doubt anyone is going to invest in making a replacement. Also, I believe Tromix is the only company that moves the gas block back when making a 12" gun. Everyone else just whacks the barrel off and leaves the gas block in the original location.

 

Tony Rumore

Tromix

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Just curious, do you keep the gas system at factory length for any 12" builds? I love the look of a 12" barrel with factory gas tube / handguard.

 

Tony just answered this question in the previous post.

 

All TROMIX SBS's run modified gas systems for maximum reliability.

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Tony just answered this question in the previous post.

 

All TROMIX SBS's run modified gas systems for maximum reliability.

 

Ah ok. Was just wondering if there was ever an exception.

 

Thanks, sir. :up:

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Actually, we are going to start producing some "professional" model 12 inch guns that have the standard full length gas system.

However, they will be intended for full power combat loads only.

I have no intentions of drilling a whole shit pile of large ass gas port holes and sticking a choke on it so it will run light loads. I don't need to hear the complaints about gas block fouling either.

 

Tony

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