Colt M1911 / M1911A1 vs COP .357 Derringer

1911–present

1983–Present

Millions

~150,000 estimated

216 mm

140 mm (5.5 in)

127 mm

63 mm (2.5 in)

1,100 g

0.5 kg (1.1 lb) empty

7+1 or 8+1 rounds

4 rounds (integral barrel cluster)

short recoil

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

SAO

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

Fixed or adjustable

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