Ares FMG vs Heckler & Koch MP5

1985–1987

1966–Present

Fewer than 20 prototypes

~2,000,000 estimated

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

680 mm (26.8 in) stock extended, 550 mm (21.7 in) stock retracted (MP5A3); Varies significantly depending on variant.

203 mm (8.0 in)

115 mm (4.5 in) standard, various lengths depending on variant (e.g., MP5K: 102 mm (4.0 in), MP5SD: 146 mm (5.7 in))

2.38 kg (5.25 lb) empty

2.54 kg (5.6 lb) empty (MP5A3)

20 or 32 rounds (Uzi magazines)

15, 30 rounds standard; 10, 20, and 40 round options available

Straight blowback, open bolt

Roller-delayed blowback, closed bolt

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

Single-stage military trigger; SEF (Safe, Semi-automatic, Full-automatic) or Navy trigger groups available with burst-fire options

Fixed front post, fixed rear notch

Rotary drum rear, hooded front post