Ares FMG vs MAC-10

1985–1987

1966–Present

Fewer than 20 prototypes

~250,000 estimated (including U.S., Brazilian, and Asian licensed production)

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

254 mm (10.0 in) with stock folded; 330 mm (13.0 in) with stock extended

203 mm (8.0 in)

127 mm (5.0 in) for 9 mm version; 127 mm (5.0 in) for .45 ACP version

2.38 kg (5.25 lb) empty

2.5 kg (5.5 lb) empty, .45 ACP version; 2.3 kg (5.1 lb) empty, 9 mm version

20 or 32 rounds (Uzi magazines)

30‑round box magazine standard; 20‑round (compact) and 40‑round (drum) options available

Straight blowback, open bolt

Straight‑blowback, open bolt, telescoping bolt with simple recoil spring; selective‑fire (semi‑auto and full‑auto)

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

Single‑stage mechanical trigger with manual safety lever; full‑auto fire only when selector set to "auto"

Fixed front post, fixed rear notch

Fixed, low‑profile iron sights: simple blade front post and notch rear; optional aftermarket tritium night sights