This is pretty neat from the OEM...
Exclusive Browning Buck Mark Camper Whisper .22 LR Auto Pistol with Threaded Barrel
Lipsey’s, Incorporated, is a large firearms distributor located in Baton Rouge, Louisiana....Now, they have really hit a home run with this newest version of the excellent Browning Buck Mark .22 caliber pistol, their Camper Model, but with a threaded barrel to easily attach a sound suppressor, muzzle brake, or flash suppressor.
...The Camper model is finished in a handsome matte black, and wears a five and one-half inch heavy barrel, just slightly tapered. For Lipsey’s, Browning lengthened the barrel by about .390 inch, to add a threaded portion for the attachment of accessories, and named the pistol the Camper Whisper, indicative of its intended use with a sound suppressor. Like the other Buck Mark pistols, the Whisper wears a superb set of sights; a fixed post front, with a fully click-adjustable rear, the base of which is integral with the top rib. The rear sight has a fine sixteen clicks per revolution, for precise adjustment. The rear face of the sight is serrated, and is arguably one of the best pistol sights made for accurate shooting, whether the target be paper, steel, or flesh. The sight does not move with the slide as it does on some .22 pistol designs, but is rigidly mounted, and the sight picture is not disturbed when shooting, with an appropriate muzzle brake or suppressor. More on that later.