[Theohazard]

Those two are definitely not it. The Sparrow is on the short list of the best .22 cans in the market, but the Pilot and Pilot 2 aren't even close; they're last-generation suppressors that have been surpassed in every way by the newer ones.

The Pilot is sealed so it can't be taken apart. And the baffles are aluminum so they're not very durable, especially against caustic cleaning chemicals like "the dip". So once the can fills up with lead fouling there's absolutely no way you're ever going to get it out without sending it to AAC for cleaning. The Pilot 2 can be disassembled, but when it's dirty the lead will basically seal the baffles in place and even AAC still recommends you send it in to them for cleaning. Also, the Pilot and Pilot 2 are louder than most newer-generation cans.

However, the Sparrow is one of the two best cans on the market in my opinion; the other being the Spectre II. They're two of the quietest and most durable .22 cans on the market. They're both fully stainless steel and are easy to take apart, even when really dirty and leaded up. The Spectre is slightly more difficult than the Sparrow to take apart when dirty, but only because the clamshell design of the Sparrow makes it easier to disassemble when dirty than any .22 suppressor ever; but the Spectre is still pretty easy. The Spectre is a little longer, but it will be a tad quieter on a pistol, while they'll both be about the same on a rifle. And due to its monocore baffle design, the Sparrow has a noticeable first-round-pop on a pistol, whereas the Spectre's first-round-pop is barely noticeable.

Since you plan to use this suppressor on a rifle I say go with the Sparrow. And stay away from older, outdated suppressors like the Pilot or Pilot 2; suppressor designs have been advancing very quickly in the last decade (especially with .22 suppressors) so there are a lot of older designs that have been drastically improved upon; the Sparrow and Spectre are two of the latest and best designs, while the Pilots aren't.