5.0-inch Inconel 718 DMLS rimfire suppressor, 6.75 oz, integral 1/2x28, full-auto rated for .22 LR through 5.7x28.

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The FireCat22 is Exigent Defense's rimfire suppressor, not a Polite Society can. It is printed in Inconel 718 by DMLS as one piece, finished in Cerakote C-102 Graphite Black, and measures 5.0 inches long, 1.125 inches in diameter, and 6.75 oz. The 1/2x28 thread is integral. Exigent rates it full-auto and lists .22 LR, .22 Mag, 17 HMR, and 5.7x28 with no barrel restriction on those cartridges.
The 5.56 line is narrower: single-shot on 10.3-inch and longer barrels. That is not a 5.56 carbine rating. Sound reduction is listed as TBA. The can is not user-serviceable. Inconel and a sealed print are the maintenance trade: it shrugs off rimfire fouling and aggressive cleaning, and you cannot pull a stack to brush it the way a Sparrow core comes out.
Warranty on the Capitol listing is lifetime. This remains an NFA suppressor. Hearing protection still applies.
Add the Exigent Defense FireCat22 to your build and see how it enhances your platform.