Take a look at Silencerco's Sparrow, too.

by Cannon , Saturday, May 04, 2013, 13:41 (4225 days ago) @ Gila Jorge

The Spectre II is an excellent can, and if it had been available when I ordered my Sparrow, I'm honestly not sure which one I would have picked.

I went with the Sparrow because it was the smallest and lightest of the stainless cans; comes apart easily even when filthy due to the inner half-tubes that enclose the core; and the fact that it is rated for magnum rimfires, 5.7x28, and even 22 hornet. (It's also full-auto rated for 22's, and I've just about got my M&P 15-22 working with a Slidefire.)

The Spectre is rated for the same cartridges, so that's a wash. On the plus side for the Sparrow, it is smaller, and should be easier to get apart if you get it really filthy. Pluses for the Spectre II are that it's less expensive, and may exhibit less 'first round pop' on short barrels.

You can't go wrong with either of these two. Silencerco now owns SWR, and they're known for some of the best customer service in the business.

Pick one and start the paperwork. Start getting barrels threaded while you wait -- so far I'm running mine on a Walther P22, Ruger 22/45, Ruger 10/22, Savage FSR, S&W M&P 15-22, and a T/C Contender short-barreled rifle.