Smith and Wesson's 648-2 is a stainless K-frame double-action revolver chambered in .22 WMR, and this modern-production example wears a 6-inch barrel. The cylinder holds eight rounds. Sights are a blade up front and an adjustable unit at the rear, and the grips are black synthetic. The bore is rated excellent, the overall condition very good with light handling marks, and the original case comes with it.

A 6-inch rimfire magnum revolver is a range and plinking gun rather than a carry piece, and the adjustable rear sight lets you dial it in for whichever ammunition shoots best. Buying a handgun in Montana means no state permit, no registration and no waiting period; you fill out the federal Form 4473 at the dealer, show current government photo ID, and the dealer runs NICS, because Montana is not a point-of-contact state. Federal law puts the minimum age at 21.

Key features

• .22 WMR, 6-inch barrel, excellent bore
• Stainless double-action K-frame
• Eight-round cylinder
• Blade front sight, adjustable rear sight
• Black synthetic grips, original case included

The revolver goes to the Montana dealer you pick at checkout, and that dealer may add a transfer fee, so ask first.