COP .357 Derringer vs Mateba Autorevolver

1983–Present

1995–2005

~150,000 estimated

~5,000 units estimated (hand‑assembled in limited batches)

140 mm (5.5 in)

254 mm (10.0 in) with standard barrel

63 mm (2.5 in)

152 mm (6.0 in) standard; 203 mm (8.0 in) optional long barrel

0.5 kg (1.1 lb) empty

1.45 kg (3.2 lb) empty

4 rounds (integral barrel cluster)

6 rounds (standard cylinder)

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

Short‑stroke recoil‑operated slide that moves barrel and cylinder forward to cock hammer and rotate cylinder; semi‑automatic operation with manual trigger pull for each shot

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

Single‑action trigger; hammer cocked by recoil system, providing a light, crisp pull

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

Fixed rear notch and front blade; optional adjustable rear sight available on long‑barrel models