COP .357 Derringer vs Smith & Wesson Model 686

1983–Present

1980–Present

~150,000 estimated

~2,500,000 estimated

140 mm (5.5 in)

228 mm (9.0 in) with 4" barrel, 191 mm (7.5 in) with 2.5" barrel

63 mm (2.5 in)

101.6 mm (4.0 in) standard, 63.5 mm (2.5 in) compact variant

0.5 kg (1.1 lb) empty

1.05 kg (2.3 lb) empty, 1.13 kg (2.5 lb) with 4" barrel; 0.94 kg (2.1 lb) empty with 2.5" barrel

4 rounds (integral barrel cluster)

6 rounds (standard), compatible with .38 Special cartridges of the same capacity

Double‑action only; four independent hammers cocked sequentially by a single trigger pull

Double‑action revolver, transfer‑bar safety, internal lockup with a single‑action trigger pull when cocked manually

Heavy double‑action trigger with a long pull, no single‑action mode

Double‑action trigger with a 5‑6 lb pull; single‑action pull approximately 3‑4 lb when hammer is manually cocked

None; optional low‑profile notch milled into the top of the frame for limited aiming

Adjustable rear sight (windage and elevation) and a fixed front blade; some models equipped with three‑dot tritium night sights