Heckler & Koch MP5 vs MAC-10

1966–Present

1966–Present

~2,000,000 estimated

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

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

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

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))

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

2.54 kg (5.6 lb) empty (MP5A3)

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

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

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

Roller-delayed blowback, closed bolt

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

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

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

Rotary drum rear, hooded front post

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