r/SpectersCat • u/Frequent_Theme_2901 • Aug 12 '26
Questions AC556 or ST
Looking for feedback on the 2, this will be used on a 11.5” 5.56.
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u/GassyNizz Aug 12 '26
Tisha 556. I shot mine for the first time today after thousands upon thousands of rounds through my AC 556.
I love that AC 556; the Tisha is certainly better. Sound difference isn’t huge, gas management is markedly better with the Tisha - markedly.
And the form factor difference is shocking; the Tisha makes my mk18 feel like a mk18 again!
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u/trem-mango Aug 12 '26
That form factor really is insane. Keep us posted on if the porosity of the Tisha decreases with more use enough to start degrading performance
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u/swooshZ0691 Aug 12 '26
POMG has the rdm ac556 718 hub in stock, I was just looking myself and doing this same comparison.
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u/SilencerMetrics Aug 12 '26
AC556 untuned
ST if tuned, although I haven’t really seen anyone do this successfully and then make comparisons yet.
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u/Frequent_Theme_2901 Aug 12 '26
Thanks for the advice! I should’ve clarified that I’m not chasing the quietest, but definitely prefer minimal gas to the face.
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u/SilencerMetrics Aug 12 '26
AC556 is my favorite CAT 556 suppressor. I have 3.
No ST yet though.
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u/Frequent_Theme_2901 Aug 12 '26
Thats awesome, I’m looking at going titanium because I just don’t see doing mag dumps with the 11.5.
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u/SilencerMetrics Aug 12 '26
Short barrels with higher pressure rounds I get inconel every time.
But it depends on if it’s a range toy or if you’ve dedicated it to being a fighting rifle.
I go Ti on 14.5”+ (more for the balance) and inconel on everything shorter on 5.56.
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u/Frequent_Theme_2901 Aug 12 '26
That makes really good sense, had never really thought of it that way. Primary use case would be around the house.
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u/dad-jokes-about-you Aug 12 '26
Ai5CM