Heckler & Koch MP5 vs Heckler & Koch MP7

1966–Present

2001–Present

~2,000,000 estimated

~50,000 estimated

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

418 mm (16.5 in) stock retracted, 638 mm (25.1 in) 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))

180 mm (7.1 in)

2.54 kg (5.6 lb) empty (MP5A3)

1.5 kg (3.3 lb) empty

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

20, 30, or 40 rounds

Roller-delayed blowback, closed bolt

Gas-operated, rotating bolt

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

Single-stage

Rotary drum rear, hooded front post

Flip-up iron sights, Picatinny rail for optics