Ares FMG vs Thompson Submachine Gun

1985–1987

1921–Present

Fewer than 20 prototypes

~1,500,000 units (World War II peak production) and limited post‑war runs

262 mm (10.3 in) folded; 503 mm (19.8 in) unfolded

762 mm (30.0 in) with stock extended; 660 mm (26.0 in) with stock folded (M1A1)

203 mm (8.0 in)

254 mm (10.0 in) standard; 305 mm (12.0 in) for some export models

2.38 kg (5.25 lb) empty

4.4 kg (9.7 lb) empty (M1); 3.9 kg (8.6 lb) empty (M1A1)

20 or 32 rounds (Uzi magazines)

20‑round box, 30‑round box, 50‑round drum, 100‑round drum (rare)

Straight blowback, open bolt

Simple blow‑back, open‑bolt, selective‑fire; rate of fire 600–1,250 rpm depending on model

Single-stage, selective fire (semi-auto/full-auto)

Two‑stage trigger: semi‑automatic (first pull) and fully‑automatic (second pull) on early models; later models use a single‑stage full‑auto trigger with a selector switch

Fixed front post, fixed rear notch

Rotary drum rear sight with 50, 100, 200, 300 yard settings; hooded front post; optional adjustable rear sight on later police variants