Charter Arms Undercover .38 Special vs Smith & Wesson Model 642 Airweight .38 Special

Both are US-made 5-shot snubnoses with 5-round cylinders and sub-2" barrels, but the construction logic is opposite. The Undercover is all blued steel at 15 oz with an exposed hammer for DA/SA fire; the 642 is aluminum alloy at 14.6 oz with an internal hammer for DAO-only fire. The Undercover is the cheaper gun, at $378.88 against $539.00, and the only one of the two you can thumb-cock for a single-action shot. Check cylinder lockup and timing on any revolver before you buy it.

Pick the Charter Arms Undercover if:

• You want the option to cock the hammer for a single-action shot — the exposed-hammer DA/SA design gives a capability the 642's enclosed hammer cannot
• You want all-steel construction at sub-S&W pricing — the blued steel frame absorbs slightly more recoil than the 642's aluminum alloy at the cost of 0.4 oz on the belt

Pick the Smith & Wesson 642 if:

• You want the cleaner pocket-draw profile — the 642's internal hammer eliminates snag risk that the Undercover's exposed spur introduces on pocket holsters
• You want the largest holster aftermarket of any snub — the J-frame pattern is the one every maker cuts leather and Kydex for
• You prefer the stainless cylinder over the Undercover's blued steel for daily carry in humid climates where surface rust is a real concern

Both are 5-shot, both are DAO-capable, both punish extended +P practice equally at under 16 oz, and both work as carry revolvers. The Undercover is the budget-conscious, US-made, DA/SA-capable choice; the 642 is the snag-free, QC-consistent premium choice.