The short answer

The Charter Arms Undercover Gen 1 .38 SPL DAO Revolver - Compact Protector and the S&W 642 Airweight .38 SPL +P Revolver with Crimson Trace Lasergrips are both double action revolvers. The Charter Arms Undercover Gen 1 .38 SPL DAO Revolver - Compact Protector is the more affordable option, starting at $333.6 versus $691.94. On the spec sheet, the S&W 642 Airweight .38 SPL +P Revolver with Crimson Trace Lasergrips is lighter (15 oz vs 16 oz).

Frequently asked questions

What is the difference between the Charter Arms Undercover Gen 1 .38 SPL DAO Revolver - Compact Protector and the S&W 642 Airweight .38 SPL +P Revolver with Crimson Trace Lasergrips?

Both are chambered in .38 Special. They differ mainly in model (Undercover vs M642 Crimson Trace Lasergrips No Internal Lock), barrel length (2" vs 1.9"), overall length (6.75" vs 6.31") and weight (16 oz vs 15 oz).

Which is cheaper, the Charter Arms Undercover Gen 1 .38 SPL DAO Revolver - Compact Protector or the S&W 642 Airweight .38 SPL +P Revolver with Crimson Trace Lasergrips?

The Charter Arms Undercover Gen 1 .38 SPL DAO Revolver - Compact Protector is currently the cheaper of the two, with a lowest listed price of $333.6 compared with $691.94 for the S&W 642 Airweight .38 SPL +P Revolver with Crimson Trace Lasergrips. Dealer prices are live and can change.

Are the Charter Arms Undercover Gen 1 .38 SPL DAO Revolver - Compact Protector and the S&W 642 Airweight .38 SPL +P Revolver with Crimson Trace Lasergrips the same caliber?

Yes. Both are chambered in .38 Special.